ML20211N832
| ML20211N832 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 05/08/1984 |
| From: | BROWN & ROOT, INC. (SUBS. OF HALLIBURTON CO.) |
| To: | |
| References | |
| FOIA-85-59 CP-CPM-9.17, NUDOCS 8607090101 | |
| Download: ML20211N832 (36) | |
Text
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,Y BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
I CP-CPM 9.17 3
5/8/84 1 of 12 TITLE:
ORIGINATOR W
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' Data REVIEWEDBY:.MN SNUBBER INSTALLATION
& R QA Date D124fdst f?CL F 3-W TUGC0 QA Date APPROVED BY:
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CONSTRUCTION PROJECT MGR Date o.1 TABLE OF CONTENTS 0
E 3.0 INSTALLATION 3.1 GENERAL UQ 3.2 LENGTH ADJUSTMENT 4.0 MODIFICATION OF SNUBBER TRANSITION KITS 4.1 GENERAL 4.2 MODIFICATION OF ITT GRINNELL SNUBBER TRANSITION KITS 4.3 MODIFICATION OF NPSI SNUBBER TRANSITION KITS 4.4 MODIFICATION OF NPSI mRWARD BRACKETS FOR SNUBBER SIZES It THROUGH 10 4.5 MODIFICATION OF NPSI FORWARD BRACKETS FOR SNUBBER SIZES 35 AND 100 4.6 MODIFICAIION OF SPC CLAMPS 4.7 SHORTENING OF EYE RODS r
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4.8 MODIFICATION OF NPSI REAR BRACKETS
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4.9 SAFETY WIRING f OC C Y, ~ (fiv/g l.
4.10 REINSTALLATION / STAKING OF SPHERICAL BEARINGS 5.0 DOCUMENTATION f
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- b. s e 6.0 SNUBBER PRE-SERVICE EXAMINATION l'
1.0 INTRODUCTION
This procedure provid,es the criteria for the installation and modi-(;
fication of ASME and Class 5 snubbers and associated items.
2.0 GENERAL 1
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
i CP-CPM 9.17 3
5/8/84 1 of 12 TITLE:
ORIGINATOR ** see original cover sheet **
Data SNUBBER INSTALLATION R QA Da:a
- see original cover sheet **
TUGC0 QA Dara APPROVED BY:** see original cover sheet **
CONSTRUCTION PROJECT MGR Data j
o.1 TABIE OF CONTENTS
1.0 INTRODUCTION
2.0 GENERAL 3.0 INSTALLATION 3.1 GENERAL 3.2 IINGTH ADJUSTMENT 4.0 MODIFICATION OF SNUBBER TRANSITION KITS 4.1 GENERAL 4.2 MODIFICATION OF ITT GRINNELL SNUBBER TRANSITION KITS 4.3 MODIFICATION OF NPSI SNUBBER TRANSITICN KITS 4.4 MODIFICATION OF NPSI FORWARD BRACKETS FOR SNUBBER SIZES k THROUGH 10 4.5 MODIFICATION OF NPSI FORWARD BRACKETS FOR SNUBBER SIZES 35 AND 100 4.6 MODIFICATION OF SPC CLAMPS 4.7 SHORTENING OF EYE RODS 4.8 MODIFICATION OF NPSI REAR BRACKETS 4.9 SAFETY WIRING 4.10 REINSTALLATION / STAKING OF SPHERICAL BEAR 3GS 5.0 DOCUMENTATION 6.0 SNUBBER PRE-SERVICE EXAMINATION
1.0 INTRODUCTION
This procedure provides the criteria for the installation and modi-fication of ASME and Class 5 catagory II snubbers and associated items.l I
2.0 GENERAL
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O CP-CPM 9.17 Rev. 3 DCN #1 06/07/84 Sheet 2 of 2 W
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I I
O JOB 35-1195 i
COMANCHE PEAK STEAM ELECTRIC STATION Construction Procedure i
DOCUMENT CHANGE NOTICE NUMBER 1
Notice applicable to Construction Procedure No. 35-1195-CP-CPM 9.17 Rev.
3 This change will be incorporated in the next revision of the procedure.
Change the procedure as follows:
Please replace the following page with the attached:
Page 1 of 12 v
Reviewed by:
/S J~-ff-diV h 8 T <f W D
Mh"iginator Date Brown & Root Qual'ity Assurance Date cx
//
Approved by:
TUGC0 Quafity Assurance 0&te 1
W&
aw L-7-94 oanner 9
Construction Project Manager Date '
Effective Date
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g BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 j
CP-CPM 9.17 3
05/08/84 2 of 12 2.1 Upon requisitioning the snubber parts from the warehouse, ensure the snubber contains the following parts necessary to complete a snubber assembly. The below listed parts are required to complete an assem-bly and may be requisitioned together or separately. The MR(s) shall be presented to QC at the time of inspection so that QC may document the component /part identification numbers in accordance with QC procedures.
2.2 SNUBBER PARTS 2.2.1 Rear Bracket (the building attachment portion of the snubber)
NPSI -
Includes the bracket, connecting pin, two bearing spacers, and two cocter keys.
NOTE: The spacers may not fit when assembling the rear bracket due to the tolerances. At this time, one or more of the spacers may be deleted provided the resulting gap is less than the. thickness of one spacer.
ITI GRINNELL -
Similar to NPSI except the connecting pin may be secured by locking rings rather than cotter keys.
2.2.2 Snubber - These are supplied by both ITT Grinnell and NPSI in seven sizes, 1/4 through 100. All seven sizes are available in two configurations. One configuration is the fixed length type.
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- ITr Grinnell - figure 306, NPSI-SMF). This type has the forward bracket attached directly to the snubber housing. See Attachments 1 and 2).
The other configuration is the variable length type (ITT Grinnell figure 307, NPSI - SMA). The variable length snubber is supplied with a transition kit which consists of an adapter that i
mounts directly to the snubber, a pipe extension piece with an in-ternally threaded end coupling welded on one end, and an eyerod which threads into the end coupling.
(See Attachments 1 and 2).
NOTE: Snubbers with extra long strokes may be required. These are identified by a "L" prefix. Where an extra long snubber is l
not specified, it may be used instead of the normal stroke anubber without Engineering authorization.
The transition kit length can be modified in order to fit as built conditions. This shall be performed in accordance with paragraph 4.0.
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 9.17 3
05/08/84 3 of 12 2.2.3 Clamp NPSI -
Includes the clamp halves, two identical stud or bolt assemblies, a clamp spacer, connscting pin, two bearing spacers, and two cotter keys.
(See Attachment 5)
ITT GRINNELL Similar to NPSI except that the connecting pin (load stud) is threaded on both ends and is secured with nuts. (See Attachment 13 and 14).
2.2.4 The snubber and parts requisitioned and listed on the MR may not have the same nomenclature specified on the drawing. For example, a SMA may be specified on the drawing, and a SMS and SMTT issued.
Since the SMS plus the SMTT constitute a SMA, this is acceptable.
However, both a MR for the SMS and the SMTT shall be presented to l
QC at the time of inspection.
2.2.5 The only parts for which a MR or physical markings on the parts are not required are the rear brackets and the pipe clamps. If the clamps are insulated there is no need to remove the insulation as the clamp installation was verified by QC as part of the hanger installation.
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3.0 INSTALLATION 3.1 GENERAL Prior to installing a snubber, the snubber should be stroked through its entire length by the craftsman to ensure that it operates freely.
Snubber sizes 35 and 100 may be stroked in the shop but QC shall be notified if this is the " final check" stroking so that they may wit-ness the operation. Defective snubbers shall be reported to QC for dispositioning in accordance with applicable QC procedures.
Uniform clamp spacing shall be maintained by tightening first at the bolt that is fitted with the clamp spacer. At this time, tighten the clamp bolts only suf ficiently to maintain the clamp halves in po-sition on the pipe. Clamp stock sizes for ITT snubbers shall be in l
accordance with Attachment 13.
The C-C dimension provided in the bill of materials or in the sketch are provided for material take-off purposes only. The maximum C-C
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4 BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195 CP-CPM 9.17 3
05/08/84 4 of 12 dimensions are provided in attachment 15 for the different size snubbers. Deviation from these dimensions, or from tha + 1/8" cold setting (AC dimension shown on the design drawing), is not permitted unless authorized by a design change.
If this tolerance cannot be maintained by adjustment of the transition kit eye rod, discontinue the installation of the snubber.
Snubbers shall be installed within a tolerance of 21* of the angle shown on the design drawing. To prevent binding within the clamp and/or bracket, the snubber shall not be installed with an offset of more than 5* unless specified by Engineering.
If the design criteria specifies an angle exceeding 5* and installation results in binding, Engineering shall be notified.
In anycase, binding is unacceptable unless approved by Engineering.
Offsets shall be measured in degrees only; linear dimensions given on the design. document are for a different reason and shall not be used to determine offset. If only a linear dimension is provided by design, Engineering shall be contacted and will provide an angular dimension.
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NOTE: The angle of the swing shall be as specified k
by the design.
3.2 LENGTH ADJUSTMENT For ITT-Fig. 307 snubbers, the transition kit eye rod has an adjustment capacity of + 3 ". For NPSI-SMA snubbers, this adjustment capacity is
+ 1 3/4".
Any further adjustment necessary may be made only by modifi-cation of the transition kit in accordance with paragraph 4.0.
While holding the snubber assembly by.the transition kit extension piece, the eye rod jam nut shall be torqued as follows:
Snubber Size k&
1 3
10 35 100 Torque Value 40 40 80 100 150 220 (FT/LB)
Torquing shall be witnessed by QC and documented in accordance with applicable QC procedures.
The length of ITT Fig. 306 snubbers can be adjusted only by the use of shim plates placed behind the rear bracket. NPSI-SMF snubbers can be adjusted either by placing shim plates behind the rear bracket, l
or by trimming the forward bracket in accordance with paragraph 4.4 I
or 4.5.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195
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CP-CPM 9.17 3
05/08/84 5 of 12 Mounting plates for transition kits or forward brackets shall be torqued as follows:
Snubber Size 4&
1 3
10 Torque Value 22 45 120 440 (IN/LB)
Torquing shall be witnessed by QC and documented in accordance with the applicable QC procedures.
F43 tory bolted forward bracekts shall be checked for bolt engagement in accordance with the following table:
Snubber Size (SMS)
Minimum Thread Engagement k-%
3/16" 1
5/16" 3
5/16" 10 9/16" -
NOTE: NPS1 forward bracket mounting bolts which have been factory-safety wired and crimped do not need to be retorqued. If however, the bolts are obviously loose, the safety wire shall be removed and the
/~T bolts torqued in accordance with the above values.
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l While torquing these bolts on sizes k through 10 snubbers, hold the i
snubber assembly by the transition kit extension piece, or by the forward bracket. When holding by the forward bracket, care shall be taken not to damage the spherical bearings.
On NPSI snubber sizes k through 10, the transition kit or forward bracket mounting bolts shall be safety wired in accordance with para-graph 4.9.
For snubber sizes 35 & 100, screw the transition kit or forward bracket into the internal threads at the base of the snubber until it bottoms against the internal dust cover or until the required thread engagement is obtained. (See note below.) This operation should be completed by hand. If more force is required, remove part and clean all internal and external threads.
If, after cleaning, tightening is difficult, a strap wrench or other non-marring tool may be used to assist in the tightening operation. However, the parts shall not be forced. After engaging the threads, or bottoming, the forward bracket may be unscrewed up to a maximum of turn to achieve correct orientation of the lugs and pins on each
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and of the snubber per the pipe support sketch.
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DAIS PAGE JOB 35-1195
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CP-CPM 9.17 3
05/08/84 6 of 12 CAUTION: Do not unscrew more than is turn.
NOTE: For NPSI items, the minimum required thread engagement is shown on Attachment 12.
For ITT Grinnell items, the thread length is acceptable as supplied. This thread length on ITT Grinnel parts shall not be trimmed without Engineering approval.
Attach one end of the snubber assembly to the rear bracket by install-ing the connecting pin with a bearing spacer, as required, on each side of the spherical bearing within the rear bracket lugs.
NOTE:
In order to accommodate field conditions, the snubber may be mounted 180o (and to end) from the configuration shown on the design drawing.
At this time, due to field conditions, it may be necessary to adjust the alignment between the snubber end cap and the mounting hardware (rear bracket or pipe clamp) in order to allow a full + So misalign-ment tolerance. All adjustments of this type shall be performed in accordance with the following instructions:
Snubber Sizes k through 10 - See Attachment 3.
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a.
Remove attachments for the arrestor.
b.
Place the arrestor in a vertical position on a table - setting on the arrestor housing.
While keeping a slight downward hand pressure on the top and to c.
+
avoid linear movement, use retaining ring pliers to free re-taining ring.
l d.
While maintaining slight downward hand pressure, slowly turn end plug by hand only to desired rotational position. Do not use wrench or other mechanical means.
While maintaining hand pressure, replace retaining ring. Expand e.
and contract arrestor slowly through full stroke to determine that repositioning has not damaged interior components.
Snubber Sizes 35 & 100 - See Attachment 4.
a.
With the assembly cradled in a bench, remove the three indicator tube mounting screws. Extend the snubber suffciently to expose the telescoping tube.
b.
While the telescoping tube is restrained from rotating, loosen the lef t hand threaded nut (ring).
(Nut has been torqued to 150
+ 20 ft. lbs.) Rotate the end cap to the desired position.
CAUTION: Under no circumstances shall the end cap be rotated more than one complete turn from the bottomed out position.
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n BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 9.17 3
05/08/84 7 of 12 c.. Re-torque the lef t hand threaded nut to 150 + 20 ft. Ibs, d.
Replace the indicator tube and screws.
Swing the unattached end of the snubber into position in the pipe clamp and install the remaining connecting pin (or load stud for j
ITT Grinnell snubbers) and bearing spacers.
j Install the first load stud nut on each end of the load stud and tighten " wrench tight".
While holding the first nut in place, i
I torque the load stud jam as follows:
Snubber Size k&
1 3
10 35 100 Load Stud Jam Nut Torque 20 65 145 280 485 1050 (FT/LB)
CAUTION NOTES 1.
Never interchange NPSI and ITT Grinnell parts or hardware.
However, NPSI and Grinnell snubber bodies may be interchanged.
2.
It is extremely important that the clamp halves are parallel (see illestration on Attachment 1).
Excessive gap at the upper and of the clamp can allow enough space for the spherical bearing to be dislodged from the eye rod end.
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3.
At no time shall installed arrestors be used as steps or handholds.
i' 4.
When are welding, do not attach ground to arrestor or any part of the arrestor which will cause arcing current to pass through arrestors.
5.
Do not sandblast arrestors. Arrestors are pre-finished with acceptable corrosion protection.
j 6.
If sandblasting is to be performed on adjacent parts such as
/
unfinished pipe or structure, arrestor and bearings on If attaching parts amist be masked for protection.
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7.
Use care to align arrestors as closely as possible to avbid forces tending to rotate the pipe clamp or induce bending.
8.
If an arrestor is accidentally dropped, check the function by extending and retracting through the full stroke.
If there is no evidence of sticking or binding, it may be assumed that no internal damage has occurred. If there is evidence of a mal-function, the arrestor should be reported to QC for dispositioning in accordance with QC procedures.
9.
To avoid driving spherical bearings free or damaging spherical bearings, use care in inserting pins. Pins should be snug but not tight. Light tapping is allowable.
- 10. Under no circumstances should the snubber housing be twisted i
relative to the position indicator tube.
This may result in a jammed snubber.
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_ I BROWg & ROOT. INC.
PROCEDURE EF7ECT M CPSES M ER RgyISION DATE PAGE I
JOB 35-1195 CP-CPM 9.17 3
05/08/84 8 of 12 4.0 IODIFICATION OF SNUBBER TRANSITION KITS 4.1 GENERAL e
Shortening or lengthening of snubber transitio:. kits to lengths that will render snubber pin to pin dimensions outside the vendor catalog minimum or maximum lengths must be approved in writing by the com-ponent's designer on a case by case basis.
In order to prevent possible damage to the snubber, do not perform any welding on the transition kit while the snubber and transition kit are connected.
When welding, do not attach ground to snubber or any part of the snubber which will cause arcing current to pass through the snubber.
For both NPSI and ITT Grinnell snubbers, the required transition kit length shall be determined by measuring the pin to pin (C-C) distance in the field. Then subtract the actual cold setting (AC dimension shown on the design drawing) from the existing pin to pin dimension.
The difference between these two dimensions is the transition kit length required to maintain the proper cold setting.
O NOTE: For small bore applications the Ac dimension is found:
Ac = L + CS fully retracted length L
=
Cold setting shown on drawing CS
=
Snubber Size "L" Dimension 9
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11 When installing transition kits, full thread engagement shall be main-tained in the coupling end.
If the transition kit is supplied without a sight hole, a sight hole shall be drilled in accordance with Attach-ment 6.
Angular alignment between the coupling out and the pipe extension shall not exceed 1/2o.
4.2 MODIFICATION OF ITT GRINNELL SNUBBER TRANSITION KITS This method applies to ITT Grinnell snubbers k,
, 1, 3, 10, 35 and 100.
After determining the required transition kit length in accordance with paragraph 4.1, proceed as follows:
Remove eye rod and jam nut.
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BROWN & ROOT, INC.
PROCEDUEE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 33-1195 CP-CPM 9.17 3
05/08/84 9 of 12 1
The end coupling nut may then be removed by grinding or cutting.
Shorten the pipe extension piece by the amount necessary to achieve the required pin to pin dimension.
In order to lengthen the transition kit, remove the end coupling by grinding or cutting. The mounting plate must also be removed.
Replace the pipe using pipe of the same nominal size and schedule as that which was removed. Cut the pipe to length necessary to achieve the required pin to pin dimension.
If the mounting plate was damaged during removal, a new one may be fabricated from SA-36 or SA-515 Grade 65 steel using the original as a pattern.
Coupling shall then be welded to the pipe extension piece utilizing jigs to ensure proper centering of the coupling on the pipe and 9
proper alignment.
The following fillet weld sizes shall be used:
SNUBBER SIZE FILLET WELD SIZE (Min.)*
%,h 3/16" O
1 3/16" 3
3/16" 10 1/4" 35 3/8" 100 5/8"
Field location of sight holes on ITT Grinnell transition kits shall be performed in accordance with Attachment 6.
NOTE: If the mounting plate has been removed or if it was supplied separate from the pipe extension piece it shall be welded using a fillet weld size equal to the pipe wall thickness.
4.3 MODIFICATION OF NPSI SNUBBER TRANSITION KITS This method applies to NPSI snubber sizes %,
, 1, 3, 10, 35 and 100.
After determining the required transition kit length in accordance
'I with paragraph 4.1, proceed as follows:
]
Remove eye rod and jam nut.
- i NPSI snubber transition kits are supplied either with a socket coup-ling end cap or a solid coupling end cap.
Remove the end coupling e
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by grinding or cutting.
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 9.17 3
05/08/84 10 of 12 Shorten the pipe extension piece by the amount necessary to achieve the required pin to pin dimension.
In order to lengthen the transition kit, remove the and coupling by grinding or cutting. Snubber sizes k,through 10 have a transi-tion kit mounting plate which must also be removed.
If the mounting plate is damaged during removal, a new one shall be fabricated from SA-36 or SA-515 Grade 65 steel using the original as a pattern.
Replace the pipe portion of the transition kit with a size and grade of pipe selected in accordance with Attachment 7 and cut to length necessary to achieve the required pin to pin dimension.
Transition kits with senket couplings shall have end cap fitup with an and gap approximately 1/16" prior to welding as illustrated in 1.
Transition kits with solid couplings shall be rewelded utilizing suitable jigs in order to ensure proper centering of the coupling on the pipe.
O The fo11. wing f111et.e1d s1.es sha11 be used:
SNUBBER SIZE FILLET WELD SIZE (Min.)*
%.k 3/16" 1
3/16" 3
3/16" 10 1/4" 35 3/8" 100 5/8"
- The weld size need not be larger 2
than the thickness of the coupling.
Field location of sight holes in NPSI transition kits shall be performed in accordance with Attachment 6.
NOTE: Transition kits which are supplied with the mounting plate i
separate from the pipe extension piece shall have these parts welded together using a fillet weld size equal to the pipe wall thickness.
4.4 q
)ODIFICATION OF NPSI M RWARD BRACKETS MR SNUBBER SIZES k THROUGH 10 The length of NPSI-SMF (fixed length) snubber sizes k through 10 j
can be modified by trimming the forward bracket in order to obtain the required C-C dimension.
i The lug and mounting plate portions of the forward bracket are supplied either separately or welded together. When welded prior to shipment, these parts must be separated by grinding the connecting weld.
e
BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE l
JOB 35-1195 CP-CPM 9.17 3
05/08/84 11 of 12 The lug portion of the forward bracket shall be cut to length nec-essary to obtain the required C-C dimension. See Attachment 8 for
=ari== and minimum lug length. The lug and mounting plate shall then be welded together using the minimum weld sizes listed below.
SMF WELD SIZE is 3/16" 3/4" LG is 3/16" 3/4" LG 1
3/16" All Around 3
1/4" All Around 10 5/16" All Around 4.5 MODIFICATION OF NPSI FORWARD BRACKETS EUR SNUBBER SIZES 35 & 100 The threaded eye rod forward bracket may be modified in accordance with the dimensions provided in Attachment 12.
When a welded eye rod is to be modified, the existing weld shall be removed by sawing and/or grinding. Revelding of cut eye rods, or welding of bulk eye rods, shall be in accordance with the dimensions provided in Attach-ment 12.
4.6 MODIFICATION OF SPC CLAMPS O
SPC clamps may be modified in accordance with' the table below to permit installation without interference with the snubber. The clamp pin shall be removed. prior to modifying the clamp. Modifi-cation of the clamp may be performed by machining or thermal cutting.
If thermal cutting is used, the flame cut edge shall be removed by grinding.
t 4.7 SHORTENING OF EYE RODS If the threaded portion of the eye rod bottoms out in the transition kit before the desired adjustment is achieved, the eye rod may be shortened to achieve the necessary adjustment. However, enough threads shall remain to allow full thread engagement in the coupling 3
nut as required by paragraph 4.1.
i 4.8 MODIFICATION OF NPSI REAR BRACKETS
?
When the snubber interferes with the rear bracket, the rear brackets 3
l' for 35 & 100 snubbers may be modified in accordance with Attachment Q
9.
Modifications may be by thennal means or machining. If thermal cutting is used, the cut edges shall be smoothed by machining.
In either case, the pin shall be removed prior to the modification.
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE i
CPSES NUMBER REVISION DATE PAGE O
JOB 35-1195 CP-CPM 9.17 3
05/08/84 12 of 12 4.9 SAFETY WIRING Safety wiring shall have sufficient tension so that wire slack is non-existent, but the wire is not overstressed. A pigtail of k" to h" (3 to 6 twists) shall be made at the end of the wiring. The pigtail should be bent back and under to prevent a snag hazard.
4.10 REINSTALLATION / STAKING OF SPHERICAL BEARINOS Rainstallation or staking of spherical bearings shall be accomplished in accordance with CPM 9.12.
5.0 DOCUMENTATION Snubber installation involving mechanical activities for ASME-related snubbers shall be doctmented by QC in accordance with QC procedures. Non-ASME-related snubber installations for Unit 1 and Common will be doctamented on Operation Travelers in accord-ance with CPM 6.3, while Unit 2 activities shall be doctmented in accordance with QC procedures. Welding operations shall be doctamented on the Vendor Supplied Component Modification Record (VSCMR) and the Wald Filler Material Iog (WFML) (Attachment 10).
6.0 SNUBBER PRE-SERVICE EXAMINATION When directed by the Owner, craft personnel will perform pre-service examination which should, as a minimtsu, include the following:
1.
There are no visible signs of damage or impaired operability as a result of storage, handling, or installation. Verify that the snubbar operates through its full stroke.
2.
The snubber location, orientation, position setting, and con-figuration (attachments, extensions, etc.) are according to d
design drawings and specifications.
3.
Snubbers are not seized, frozen or jammed.
(May require snubber removal.)
4.
Adequate swing clearance is provided to allow snubber movement.
5.
Structural connections such as pins, fasteners, and other connecting hardware such as lock nats, tabs, wire, cotter pins, are installed correctly.
If the period betweer. the inicial pre-service examinatiom and initial system pre-operational testing exceed six months due to unexpected situations, re-examination of items 1 and 4 shall be performed as directed by the Owner. Snubbers which are installed incorrectly or o therwise fail to meet the above requirements must be repaired or replaced and re-examined in accordance with the above criteria.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE i.
Jos 35-L195 O
3 05/08/84 1 of 1 CP-CPM 9.17 ATTACHMENT 1 1/4 THROUGH 10 O
NPS-SMF ITT-FIG 306 m
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NPS-SMA ITT-FIG. 307 O
BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-L195 CP-CPM 9.17 3
05/08/84 1 of 1 ATTACHMENT 2 SNUB 3ER SIZE 35 & 100 e
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE I
JOB 35-1195 O
CP-CPM 9.17 3
05/08/84 1 of 1 ATTACHMENT 3
.i MECHANICAL SNUBBER 1/4 THROUGH 10 130 Ci?
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I 70$ITION TV3E INDICATOR O
SUFFORT CTLINDEX eie
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RETAIN 11 "I*
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NtMBER REVISION DATE PAGE CPSES O
JOB 35-1195 CP-CPM 9.17 3
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NUMBER REVISION DATE PAGE CPSES O
JOB 35-1195
- f CP-CPM 9.17 3
05/08/84 1 of 4 ATTACHMENT 5 - NPSI CI. AMP SPACER SIZE i[l1i Ao eglo i!
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NUMBER REVISION DATE PAGE j
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JOB 35-1195
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05/08/84 2 of 4 ATTACHKENT 5 - NPSI CLAMP BOLTS & STUDS SIZE
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f: UMBER REVISION DATE PAGE CPSES JOB 35-1195
'l CP-CPM 9.17 3
05/08/84 1 of 3 ATTACHMENT 6 ITT GRINNELL SIGHT HOLE PLACEMENT GUIDE
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PROCEDURE EFYECTIVE CPSES NUMBER REVISION DATE PAGE
.f JOB 35-1195 CP-CPM 9.17 3
05/08/84 1 of 1 l
I ATTACHMENT 7 NPSI TRANSITION KIT PIPE SIZING GUIDE E.
Pipe Size Snubber Size 1" Sch. 40 1" Sch. 40 1k" Sch. 40 1
1k" Sch. 40 3
2" Sch. 80 10 4" Sch. 80 35 6" Sch. 120 100 i
Pipe material shall be SA 106, Grade B, unless otherwise specified by design. Unless noted on the drawing, the pipe schedules listed shall be construed as minimums.
ITT GRINNELL TRANSITION KIT PIPE SIZING GUIDE O
eiPe Sn bber Size 1" Sch. 40 k
1" Sch. 40 1" Sch. 80 1
2" Sch. 40 3
24" Sch. 40 10 4 " 0.D. x 0.8" Wall 35 5 9/16 " 0.D. x 1" Wall 100 4
Pipe material shall be SA 53, Grade B, or SA 106, Grade B.
Unless noted on the drawing, the pipe schedules listed shall be construed as minimums.
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE f'
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CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195
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CP-CPM 9.17 3
05/08/84 1 of 1 7
ATTACIDDLNT 8 1,
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JOB 35-1195
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CP-CPM 9.17 3
05/08/84
,1 of 1 ATTACHMENT 9 FIEI.D MODIFICATION OF SIZE 35 AND 100 SNUBBER REAR BRACKETS wa e gr a r %ug 7 }
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CPSES NUMBER REVISION DATE PAGE I
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05/08/84 CP-CPM 9.17 3
1 of 2 ATTACHMENT 10 (Front)
VENDOR SUPPLIED COMPONENT MODIFICATION RECORD Card Serial i
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CP-CPM 9.17 3
05/08/84 2 of 2 i
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CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195 i
/
CP-CPM 9.17 3
05/08/84 1 of 1 ATTACHMENT 11 NPSI SOCKET TYPE COUPLING END CAP FITUP
- 1. Scribe line 1/2" from thee of coupling.
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CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195
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CP-CPM 9.17 3
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PROCEDURE EFFECTIVE j
CPSES NUMBER REVISION DATE
'PAGE JOB 35-L195 05/08/84 1 og i CP-CPM 9.17 3
j ATTACHMENT 14 ITT GRINNELL CLAMP PART SIZES t
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PROCEDURE EFFECTIVE 4
CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 9.17 3
05/08/84 1 of 1
/
ATTACHMENT 15
<i GRINNELL SHOCK ARRESTOR-FIXED (FIG. 306)
SIZE k
i T3 10 35 100 i
19-1/8 23-5/16 30 35-13/16 MAX C-C*
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE
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JOB 35-L195 t
CP-CPM 9.17 3
05/08/84 1 og 1
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ATTACHMENT 16
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sta" by the amount the hub extends beyond the 1
sta' 1s/16*
snubber body. Engineering shall be notified.if such a reduction exceeds the 3
15/10' 1 3/16*
minimum edge distance.
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BROWN R OT, INC.
- NUMBER REVISION DATE PAGE O
JOB 35-1195 CP-CPM-6.9E 7
1 of 27 05/14/84 TITLE:
ORIGINATOR:
YNr D '>
- -ff 8 CP-CPM-6.9E Y ' 8N (APPENDIX E)
REVIEWED BY: MJ b PIPE FABRICATION B&R QUAL,ITY ASSURANCE DATE AND INSTALLATION CCN Sl REVIEWED BY: Mc_. /Cf M<.,'
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- R TUGC0 QUALITY ASSURANCE DATE b
REVIEWED BY: [ //
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8AS-fv SR. PROJECT WELDI ^ ENGINEER DATE Jev A'#
bbN APPROVED BY:
CONSTRUCTION PROJECT MANAGER DATE FOR 0 FICJ M
1.0 INTRODUCTION
ENGINEERING USE O 2.e 2.1 APPROVAL AUTHORITY 2.2 RESPONSIBILITY 3.0 PIPE FABRICATION AND INSTALLATION PROCEDURE 3.1 GENERAL 3.2 PIPING SYSTEMS REQUIRING THE REMOVAL OF THE MANUFACTURERS' INTERIOR COATINGS 3.3 CONTROL OF PIPING MATERIALS IN THE PIPE FABRICATION SHOP 3.4 PIPE BENDER QUALIFICATION 3.5 REQUIREMENTS FOR PIPE JOINTS i
L 3.6 PENETRATIONS THROUGH WALLS AND SLABS 3.7 VALVES I
3.8 TEMPORARY STRAINERS l'
3.9 BURIED PIPING 3.10 FABRICATION TOLERANCES u
l 3.11 TORQUING 3.12 PIPING DESIGN LOCATION 3.13 PIPE, HANGER, AND OTHER STRUCTURAL MATERIAL SALVAGING tj 3.14 VALVE DISASSEMBLY / REASSEMBLY l'i 3.15 MARKING l
3.16 INSULATION l!
3.17 PIPE HANGERS ll 3.18 PIPE CONNECTIONS TO ROTATING EQUIPMENT BA 0.11 LIST OF TABLES l
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0 J03 35-1195 COMANCHE PEAK STEAM ELECTRIC STATION Constructica Procedure DOCUMENT CHANGE NOTICE NUMBER 3
Notice applicable to Construction Procedure No. 35-1195-CP-CPM 6.9E
.'. r! '.
7 This change will be incorporated in the next revision of the procedura.
4 Change the procedure as follows:
Please replace the following page with the attached:
Page 13 of 27 O
Reviewed by:
W W
f'2-/Y Project Weiding Engineer Data ff*//
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SY w iginator Cata i Brown & Root Quility Assuran 0 0:.ta 4
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COMANCHE PEAK STEAM ELECTRIC STATION Construction Procedure DOCUMENT CHANGE NOTICE NUMBER 2
Notice applicable to Construction Procedure No. 35-1195-CP-CPM 6.9E Rev.
7 i
This change will be incorporated in the next revision'of the procedure.
Change the procedure as follows:
Please replace the following page with the attached:
Page 23 of 27 O
i t
Reviewed by:
5'$$
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Project Welding Engineer Date 4-[-M Mf N
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Jbdv' iginator Date Brown & Root Quality Assdrance Date
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'Date Approved by:
TUGC0 Qulility Assurance l
'fd' i
uction Project Mahager Date Effective Date To
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1 i O JOB 35-1195 COMANCHE PEAK STEAM ELECTRIC STATION Construction Procedare DOCUMENT CHANGE NOTICE NUMBER 1
Notice applicable to Construction Procedure No. 35-1195-CP-CPM 6.9E P.av. 7 This change will be incorporated in the next revision of the procedure.
Change the procedure as follows:
Please replace the following page with the attached:
Page 21 of 27 O
Reviewed by:
,Y$
bW S~P *P/
Froject Welding Er.gineer Date FL'h f-LV-/W b
NY
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Approved by:
' TUGC0 Quality Assurance Cata b
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PROCEDURE EFFECTIVE I
CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 2 of 27 o.iii LIST OF FIGURES 6.9E-1 Buttweld End Pipe - Nuclear Pipe 6.9E-2 Buttwald Preps - Non-Nuclear 6.9E-3 Determining Wall Thickness After Machining 6.9E-4 Half Ccupling Bevel Detail 6.9E-5 Pipe Bender Qualification Form 6.9E-6 Valve Spools 6.9E-7 Fabrication Tolerance 6.9E-8 Material Salvage Sheet 6.9E-9 Full penetration nozzle branch and piping connections 6.9E-10 Flushing / Hydro Flange Disassembly List
1.0 INTRODUCTION
This appendix to procedure CPM-6.9 has been prepared to delineate the requirements for piping fabrication and installation at CPSES. Requirements for related activities such as welding are given in other. appendices of Procedure CPM 6.9.
2.0 GENERAL 2.1 APPROVAL AUTHORITY The requirements for origination, review, and approval of this document shall be as stipulated in CPM 6.1.
2.2 RESPONSIBILITY The Pipe Superintendent ~ is responsible for assuring conformance with the requirements of this appendix.
3.0 PIPE FABRICATION AND INSTALLATION PROCEDURE il 3.1 GENERAL i
All piping (except 2 inches and smaller BOP) fabrication /
i, installation shall be performed in accordance with drawings issued by the Mechanical Engineering Dept. When discrepancies are discovered by the Pipe Superintendent (PS) on these
-j drawings or between these drawings and other documents
- j issued by G&H, W, etc., the PS shall request and obtain a ll resolution from Engineering before performing the af fected work.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 3 of 27 The PS may make a weld in the Pipe Fab Shop (PFS) which was designated a field weld on the fabrication drawirg and the weld shall be treated as a shop weld. The spool number will not be changed, e.g.,
if field weld number 3 is between spools D and E, D and E will still be considered separate spools.
Piping, valves, etc., supplied with equipment packages shall be installed per this procedure. Where vendor requirements differ from those given in this procedure, the more stringent requirements shall apply.
Piping for instrumentation bridles shall be welded and fabricated in accordance with FSI drawings issued by the Instruent and Control Engineering Department. Since instrinnent bridles do not utilize line ntanbers, the entire assembly will be considered as one spool piece and all welds will be denoted as field welds as shown on the drawings.
The Instrtanentation Superintendent (IS) is responsible for assuring conformance with the requirements of this apper_ dix.
The use of teflon tape is prohibited for permanent pipe connections unless explictly allowed by approved design docume nt s.
The boundaries of a component to which piping is attached shall be at the limit of reinforcement. This boundary shall not be closer to the main shell of a vessel, pump, or valve than:
a.
the first welded circunferential joint: the weld shall be considered part of the piping.
b.
the first bolted flange face; the bolts shall be considered part of the piping.
c.
the first threaded joint in screwed connections.
In the case of a safety-related valve welded to nott-safety a
related pipe, the weld shall meet the requirements of the u
non-safety related piping.
In the event that the sa fety related valve is austenitic stainless steel, the connecting non-safety related weld shall also meet the requirements for ii the control of sensitization and delta ferrite.
(MS-100, i
Section 4.1.5).
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE d
CPSES NUMBER REVISION DATE PAGE
- O JOB 35-1195 05/14/84 4 nr 27 CP-CPM 6.9E 7
After drilling piping, all bores shall be deburred and the inside diameter of the hole radiused to one-fourth of nominal wall thickness of the penetrating part or 3/4-inch, whichever is less (see Figure 6.9E-9).
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Except as permitted by MS-100 Section 7.1.10, stainless steel materials shall be handled in a manner to avoid contact with carbon steel materials. Carbon steel surfaces contacting stainless steel parts such as jacks, work benches, or rolls shall be faced with stainless steel, wood, rubber, tape, etc.
Slings used to handle stainless steel items shall be made from nylon or stainless steel material or shall have adequate i
protection such as being covered with rubber or wood to prevent contact between carbon steel slings and stainless steel surfaces.
Those lif ts defined as critical by CCP-24 shall require an Operation. Traveler. At the option of the cognizant engineer, Operation Travelers, may also be utilized for any other O
rigging and lifting operations. Travelers shall be prepared and controlled in accordance with CPM-6.3.
Where applicable, rigging and lifting of iteme shall be in accordance with the i
manufacturer's recommendations in accordance with procedure CCP-24.
Double slings shall be used on horizontal loads over 12 feet in length, when that load is composed of two or more joined l
pieces of material.
Tools used on stainless steel materials only shall be designated for such usage by color code marking with f
fluorescent orange paint.
Color-coded tools shall not be used to work carbon steel materials.
If such tools are inadvertently used on carbon steel, such tools shall have the orange color code removed.
Measuring devices such as rules, framing squares, protractors, center markers, contour markers, levels, pocket tapes, 50-ft lj tapes, plumb bobs, tri-squares, micrometers, etc., which will lj not contaminate stainless steel materials need not be color j
coded for use with stainless steel and may be used interchangeably on stainless steel and carbon steel without intermittent decontamination or cleaning.
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PROCEDURE EFFECTIVE
'CPSES NUMBER
. REVISION DATE PAGE b)
~
JOB 35-1195 CP-CPM 6.9E 7
05/14/84 5 og 27 Stainless steel covered fabrication tables, stands, etc.,
which have been used for fabrication of carbon steel items shall be decontaminated before reuse on stainless steel items by removing loose dirt, steel filings, etc., with a standard commercial dust brush, vacuum cleaner, rag, or other similar means; decontmaination by solvent cleaning, shot-blasting, etc., is not required.
Weld and valves except diaphragm, control, and check valves shall be opened approximately 50% prior to welding. All diaphragm valves shall have the diaphragm removed before welding. Manufacturer's instruction shall be followed when they differ from this requirement.
I'l5hkaintoolssuchasfiles, vises,hacksawblades, drills, holesaws, etc. are made of carbon steel and will be used in working stainless steel materials. These tools shall not be used interchangeably on carbon steel and stainless steel.
Those tools used for stainless steel shall be color-coded fluorescent orange.
()
No instruments, tools, etc., containing mercury shall be brought in the vicinity of fabrication areas.
Pipe cutting shall be performed by machining, sawing, or cutting with iron-free aluminum oxide abrasive discs. Arc cutting is allowed provided the surfaces are ground smooth after the cutting operation. When torch cutting carbon steel, the material shall be preheated to the same tcuperature used in qualifying the welding procedure which will be used to weld the cut piece.
Interior and exterior surfaces within 2 inches from the field buttweld end preparation may receive one coat of Deoxaluminite paint on all CS pipe spools to prevent rus ting during storage. Carbon steel socket weld ends, both fittings and pipe, which have been cleaned for field welding may be coated with Deoxaluminite paint.
l l
l 3.2 PIPING SYSTEMS REQUIRING THE REMOVAL OF THE MANUFACTURER'S INTERIOR COATINGS:
i qCarbon steel piping systems listed below shall have all einterior manufacturer's coatings removed in the cleaning j
joperation as noted on B&R fabrication drawings. All other carbon steel pipe spools are acceptable with the manufacturer's standard coating on the interior of the pipe j
S and fittings.
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__ _ _..x BROWN & ROOT, INC.
PROCEDURE EFFECTIVE I
CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 6 cf 27 MS - Main Steam and Reheat AF - Auxiliary Feedwater FW - Steam Generator Feedwater HD - Feedwater Heater Drains CO - Condensate Diesel Generator Starting Air CP - Condensate Polishing AS - Auxiliary Steam SS - Secondary Sampling LO - Lube Oil SL - Steam Seal CL - Control Fluid SB - Steam Generator Blowdown and Clean l'p GS - Gland Steam CF - Chemical Feed DO - Diesel Generator Fuel Oil Storage and Transfer DO - Diesel Generator Fuel Oil DO - Diesel Generator tube Oil EX - Extraction Steam HG - Plant Cas H2 NC - Plant N2 OG - Plant 02-O TO - Turbine Oil Purification
- All Drains to Atmospheric Drain Tank and. Main and Auxiliary Condensers The coating shall be removed by abrasive blasting or "Transpo" solvent at the discretion of the CS.
The abrasive shall be 1635 mesh Chestex #3, or equal. Sand and dust shall be removed from the rurface af ter blasting.
Machining bits may be used on both stainless steel and carbon steel provided they are decontaminated with solvent before machining stainless steel.
3.3 CONTROL OF PIPTNc MA m m e in "22 p or ran cw'a Loose fittings, pipe spools, valves, etc., may be stored in the PFS and PFS laydown yards at the discretion of the PS and in accordance with procedure MCP-1 %
MRs used to release material in the PFS should be maintained in a file in the shop.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
JOB 35-1195 g
CP-cra o. E -Q 05/14/84 7 of 27 Prior to cutting a piece of process bulk pipe, the heat number, ASTM /ASME type and grade, schedule / wall thickness, spool, and piece numbers shall be transferred such that ach cut piece will have a correct legible identificatio The cognizant QC Inspector witnesses such marking transfer prior to cutting ("Q" material) upon request of the Craft General Superintendent.
Pipe, fittings, flanges, spools, etc., do not require end caps starting from when the material is moved into the PFS continuing through the fabrication process until the assembly ~
is cleaned. End caps may be used at the discretion of the r:s to maintain purges on weld joints in lieu of purge dams.
If work is stopped on a partially fabricated pipe spool, the
~
ends of the partially fabricated spools "should be capped if the spool is stored outside the PFS.
3.3.1 Machining P.ipe subassemblies, valves, and equipment supplied to O
iro = 5 neet 87 trr-criaa tt w eiashou e.
tc.
itt normally have weld end preps which meet the dimensional standards noted in MS-43B and MS-448.
Engineering will resolve any differences in the event items are received that do not meet the referenced dimensions and fit-up requirements can not be met.
Brown & Root will not rework weld end preps provided to them by others that do not meet the dimensional requirements given above unless directed by the Owner / Engineer, provided fit-up tolerances are satisfied.
When weld ends are to be prepared by Brown and Root, the ends shall be prepared in accordance with Figures 1 and 2 and as required by the following:
1.
ASME Code Class 1 and 2 buttwelded piping, where consumable inserts (except type.K) or machined backing rings are used, shall be counterbored to 2 times the pipe wall thickness (T) except on elbows and curved sections. In those cases, a k-inch counterbore shall be used. Where necessary to avoid encroaching on minimum wall, counterbore to a depth of T if less than k inch thick.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE n
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JOB 35-1195 CP-CPM 6.9E 7
05/14/84 8 of 27 2.
ASME Code Class 1 and 2 buttwelded piping where open butt-welding or type K consumable inserts are used, does not require counterboring. When fit-up requirements per ASME III cannot be made, the ID of the smaller pipe shall be faired to at least a 4:1 taper to achieve proper alignment.
In no case shall the pipe minimum wall thickness be violated.
3.
For ASME Code Class 3 buttweld piping, counterboring is not necessary. When the fit-up requirements of ASME III cannot be made, taper to achieve proper alignment. In no case shall the pipe minimum wall thickness be violated.
4.
For non-Q butt weld piping, counterboring is not a
necessary. When the fit-up requirements of ANSI B31.1 cannot be made, the ID of the smaller pipe shall be faired to at least a 4:1 taper to achieve proper alignment. In no case shall the pipe minimum wall thickness be violated.
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5.
Slight deviations may be approved by the PWE and Site Engineering.
3.3.2 Nuclear Pipe Piping shall be ground or machined when the alignment criteria cannot be obtained by the use of clamps or jacks and in accordance Appendir. D, Section 3.10.
When counterboring is required, the cutting bits of the machining tool used to end prep' the piping should be set in the tool setting gauges. The wall thickness of the pipe should be measured with a calibrated micrometer before the machining tool is set up to ensure that the machining operation will not violate the minimum wall requirements.
Af ter the piping has been machined, the machined inside i
diameter of the pipe shall be measured by the craftsman with the Go/No-Go gauges or other suitable means normally while the mandrel of the machining tool is still in place.
l After counterboring, the craftsman shall:
a.
Check pipe in at lease three places by using a l
calibrated micrometer at the counter bore to ensure that minimum wall thickness has not been violated.
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PROCEDURE EFFECTIVE CPSES NyMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 9 of 27 the measurement is impractical due to the counterbore not being long enough, etc., then the wall thickness shall be determined by the method shown on Figure 6.9E-3.
b.
Check the transition angle to assure it is not greater than 30*.
Minimum wall shall be considered 87 % of nominal wall or as specified in the pipe specification category or applicable drawing. Any pipe that will not meet the minimum wall requirement af ter it is counterbored shall be dispositioned in accordance with the requirements of MS-100 or MS-43B or MS-44B as outlined in Appendix D of this procedure.
A lubricant or nachining coolant may be employed during machining operations provided it does not contaminate any crevices or areas which cannot be subsequently cleaned.
3.3.3 Non-Nuclear Pipe If the inside of fset cannot be maintained within the
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prescribed limits by use of clamps or jacks, then the inside diameter of the joining piece (s) shall be ground or machined to the contour shown in Figure 6.9E-2 as required to obtain an acceptabi'e fit-up without violating minimum wall.
Alternate weld end details are subject to approval by engineering.
(Note: Figure 6.9E-2, page 4 of 4 also applies to ASME Class 3 piping.)
The last three paragraphs of Section 3.3.2 are applicable h
for non-auclear pipe also.
3.3.4 Other Machining No nachining shall be accomplished on valves or other equipment without prior authorization from Site Engineering.
3.3.5 In-Place Machining Piping buttweld ends which require rework in the field shall meet the fit-up requirements for MS-100. Machining shall be
.i performed only as required to meet fit-up requirements.
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PROCEDURE EFFECTIVE l
CPSES NUMBER REVISION DATE PAGE JOB 35-1195 i
CP-CPM 6.9E 7
05/14/84 10 of 27 3.3.6 Branch Connections.
Where half-couplings are used as branch connections or instrument bosses for welding onto the pipe runs, the attachment end shall be properly machine beveled to permit a full penetration veld (see Figure 6.9E-4).
3.3.7 Minimum Wall Violations Violations to minimum wall thickness shall be evaluated as per Appendix D of this procedure.
3.4 PIPE BENDER QUALIFICATION Diameters and thicknesses other than those qualified shall be qualified by the Piping Superintendent prior to bending.
The Site QA Manager and the ANI shall be notified before the qualification process. Results of the qualifiction shall be documented by the Site QA Manager on the Pipe Bander Qualification Form (Figure 6.9E-5).
The qualification results shall be reviewed and approved by the Senior Staff
(]}
Engineer signing the Qualification Form.
Bender shoes may be used for both stainless steel and carbon steel interchangeably without intermittent decontamination I
on "Q" and Non "Q" pipe bends.
A section of each different diameter, schedule, and material type shall be tested using the following procedure:
1.
Each section of pipe shall be bent to a 90* bend and cut into four sections.
2.
Each section shall be measured for reduction in wall thickness and ovality. A change in ovality shall be T
determined by measuring the maximum and minimum diameters.
J 3.
Change in well thickness shall be determined by measureing the minimum wall before and after the bending operation. Change in ovality of 8% or less and a reduction of wall thickness that does not violate minimum wall thickness will be acceptable. (See Figure 6.9E-5).
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
JOB 35-1195 CP-CPM 6.9E 7
05/14/84 11 of 27 Once a pipe bender has been qualified and found acceptable, it will require no further qualification.
The qualification form (Figure 6.9E-5), af ter approval, shall be forwarded to the Permanent Plant Records Vault.
3.4.1 Cold Bending Pipe The craf tsman performing the bending operation shall measure the wall thickness of the pipe at the end nearest the band.
The well thickness shall be measured using a calibrated micrometer, and the dimension recorded on the MRS by the craf taman. The minimum alloweble vull thickness of the pipe end prior to the bending operation shall be 1.06 times the minimum wall thickness for 6D bends and 1.08 times for 5D bends.
Af ter the well thickness has been verified, the craf tsman shall bend the pipe to the required angle using the instructions provided by the manufacturer of the bending machine being used.
The minimum allowable shoe radius for pipe bending covered by the scope of this procedure is shown below:
NOMINAL ANSI SCHEDULE OR SIZE RANGE WALL THICKNESS BEND RADIUS 4" thru 2" 40, 40S 6D 4" thru 2" 80, 80s, 120, 140 SD and 160 and heavier non-standard wall NOTE:
Pipe bend radii, measured from the center of curvature to the center of the pipe cross-sectional area, is a funtion of the nominal pipe size (D) and the wall thickness shown in the above tabulation.
Af ter the pipe bend is complete, the craftsman shall visually
[
inspect it for wrinkles, any flat spots, cracks, etc.
If any defects are found, Engineering shall be advised by the responsible CS.
I Pipe bends may be substituted for fittings in accordance with MS-43-B and MS-100.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
JOB 35-1195 CP-CPM 6.9E 7
05/14/84 12 nr 77 3.5 REQUIREMENTS FOR PIPE JOINTS The thread sealant used on screwed joints shall be CRAPHOIL tape with adhesive backing. Thread sealant shall not be used on joints which are to be sabsequently seal welded.
When screwed joints are to be seal welded, the exposed thread shall be completely covered with weld metal.
Tapered threads in pipe shall be of the proper length and depth to ensure pressure-tight joint without and excessive length of male thread showing outside of the fitting. See Table 6.9E-I for proper length. All cut and threaded ends shall be reamed and free of burrs and obstructions.
QC shall be notified prior to the making of screw joints.
Inspection of these joints shall be documented in' accordance with the applicable QA procedures.
3.5.2 Flanged Joints
(
Flange faces shall be thoroughly cleaned, as req'uired, to remove excessive rust, scale, dirt, old paint, etc.
Flange faces on equipment and piping systems such as the Circulating Water System, Service Water System, and Chlorine System will have the internal lining on the flange face as required by the applicable coating procedure.
Stud, nut, and gasket materials shall be in accordance with that shown on the installation drawings. The stud length may vary from that shown on the drawing (depending on availability), provided that at least one thread protrudes above the face of the nut. Uniform stud length should be maintained, and excessive bolt length past the nut face st.ould be avoided.
When the pipe is to connect to a flange on the equipment the face of the flanges should be aligned to within the lessor of:
(1) 25% of the gasket thickness (2) 3/64 of an inch I
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EFFECTIVE J'
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PROGDURE
.REVISI(Et DATE PA2 7
CPSES NUMBER JOS 35-1195 4
13 of 27 CP-CPM 6.9E 7
5/14/84 C
- 3. 5. 2.1 Breakina of Flanned Joints When it becomes necessary to break an inspected flanged joint for any reason, QA/QC Building Superintendant shall be notified by the responsible craft foreman. This notification will be by I
the foreman completing the Flange Disassembly List (Figure 6.9E-10).
Copier of the form shall be submitted to the QA/QC Building Superintendent prior to beginning the disassembly, and a final listing shall be submitted after the reassembly is completed.
The bottig materials removed from the joint shall be reused in the same joint.
If. replacement of botting materials are required, an Operation Traveler identified as "For asterial replacement only" b
shall be used, and the replacement material issued, installed, and verified tha same as for the original materials.
NOTE:
IRN's or travelers are not required fbe P
disassembly / reassembly activities except i
as specified above.
After a system has reached N-5 certification status, flanges O
-7 ont7 be disasse bted as authorised b7 SAP-6.
This authorisation shaLL be documented by a SWP or a SWA, and the disassembly /
reassembly doctaiented on a traveler.
3.5.3 Expaasioa Joints The piping and/or equipment connected to the expansion joint shall be aligned to within the tolerances given by the expansion i
joint manufacturer.
l Expansion joints received with factory-set sizing bars shall be erected and bolted or welded in position prior to removing the sizing bars.
After expansion joint installation the permanent piping supports, anchors, and guides shall be completed to the l.
extent that distortion of the expansion joint during f
completion of the remaining work on the system does not occur.
l If the permanent support, anchors, and guides are not available, then temporary supports shall be instatted to safety handle loads affecting the expansion joints.
l Expansion joints not furpished with insulation covers shall be protected with temporary sheet metal covers until all 8
9 welding and burning in the area are completed. The cover i
shall provide a minimum of 1 inch clearance beyond the outside 4
g of the bellows.
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The temporary sizing bars should be removed prior to hydro-static testing unless otherwise instructed by the manufacturer.
CP-CPM 6.9E REV. 7 DCN #3 07/16/84 Sheet 2 of 2
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05/14/84 14 of 27 3.6 PENETRATION THROUGH WALLS AND SLABS Sleeves shall be placed around the pipe where it penetrates i
f'loors and walls as called for on the C&H composite and/or I
structural drawings. Sleeves through blockouts shall be concentrically positioned around the pipe, by wooden chocks, unless shown otherwise on the drawings. When sleeves are installed in blockouts, their center 11nes shall be within is inch of the piping centerlines. Piping and sleeves shall be parallel within 1/16 inch of the pipe sleeve.
3.7 VALVES Valve stem orientation will normally be shown on the installation isometric. However, in some cases this may be impractical; therefore, prior to welding or bolting any valve in the system, stem orientation shall be checked against the G&M composite drawing by the PS.
Where reorientation is required to avoid interferences, valve operators may be rotated in accordance with Site Engineering and manufacturer's instructions. On motor-operated valves, the operator should
('s be oriented such that the limit switch compartment is not L
t below the gear box.
i Unless otherwise noted on the installation drawing or valve body, globe valves shall be installed such that the flow enters the valve beneath the valve seat and exits above the valve seat.
When it becomes necessary as determined by the PS to install p*pe spools adjacent to valves which are not available for installation, temporary spools may be installed in place of the missing valves (see Figure 6.9E-6 for typical valve spool configurations). Welding operations on temporary valve spool installations on "Q" lines will be inspected by the B&R Welding Engineering Department.
3.8 TEMPORARY STRAINERS e
Temporary strainers shall be installed as called for on the installation drawings. The strainers will remain in place l
until flushing is complete. The strainers shall not be i
removed af ter system turnover without a directive from TUCCO.
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EFFECTIVE PROCEDilRE BROWN & ROOT, INC..
NUMBER
! REVISION i DATE j
PAGE CPSES JOB 35-1195 CP-CPM 6.9E l i 05/14/84 l
15 of 27 7
3.9 BURIED PIPING 3.9.1 Buried in Soil Stainless steel piping buried in soil needs no outside protective coating unless required by the installation drawings.
Carbon steel piping buried in soil shall be coated and wrapped as required by Procedures PFP-1 and 5 as applicable. External surfaces shall not be coated until pressure testing is complete.
Other pipe materials buried in soil shall be coated as required by the installation drawings.
Prior to backfilling the trench, the piping shall be checked for line and grade, and shall be holiday tested and pressure tested.
Under no circumstances shall pipe be laid in water and no pipe shall be laid when the trench conditions are unsuitable for such work.
Standing water that may have entered the C.m trench shall be removed prior to removing the pipe end cap (s).
Whenever pipe laying is discontinued, the open end of the line shall be sealed with a watertight closure.
Unless otherwise approved by Engineering, the buried piping locations shall be maintained within the following tolerances from the design locations:
1.
Other than @ termini Maximum incremental deviation 1/16" per foot Centerline departure - t 2" Lateral Alignment - t 2" 2.
At termini the tolerance shall bei End cut or flange elevation - 2 h" Lateral Alignment - t Longitudinal Alignment - 1 Constraints:
Lov or high points that would hinder drainage or venting are not pe rmitted.
Minimum slope requirements as shown on drawings shall be observed.
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BROWN & ROOT, INC.
NUMBER fREVISION l DATE j
PAGE i
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JOB 35-1195 CP-CPM 6.9E 7
16 of 27 i05/14/84 e
In the event that these tolerances are exceeded, as-built diaeusions shall be taken by the B&R Field Engineering Department and submitted to Engineering for approval prior to backfilling.
Piping which has a protective coating shall be handled with nylon chokers or steel chokers with rubber softeners where they contact the pipe coating..
During b'ackfill of trenches W. H. Brady Company "Identoline" tape or equal, shall be placed approximately 18 inches above the top of the installed underground metal piping by the Excavation Department personnel.
Metalized tape shall be placed above non-metallic piping. Tha colors shall be as follows:
Gas Line
- Orange Water Lines
- Blue Sewer & Drainage Line
- Red Oil Lines
- Green The non-welded joints of all buried metallic piping shall be bonded across to provide electrical continuity to adjacent pipe sections. 'This work shall be performed by the Electrical O
Department personnel in accordance with their procedures.
3.9. 2 '
Pipe Encased in Concrete Pipe buried in concrete needs no protective coatings unless specifically called for on.the installation drawings. Coating inadvertently applied to carbon steel piping exteriors do not require removal when installed in concrete.
All piping shall be supported as follows:
4" diameter and smaller
- support on approximate 10 foot intervals.
6" thru 10" diameter
- support on approximate
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15 foot intervals.
12" and larger
- support on approximate 20 foot intervals.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
17 of 27 05/14/84 The supports shall secure the piping so as to prevent move-ment in the horizontal and vertical downward directions but also in the vertical upward direction to offset the buoyant forces of the concrete.
The supports may be constructed of reinforcing steel, structural, steel and/or standard pipe hanger components.
There shall be no welding of the pipe to structural rebar.
Prior to placement of the concrete, the piping shall be checked for line and grade by the B&R Field Engineering Department personnel and shall be pressure tested.
Mechanical joints of piping embedded in concrete do not require electrical bonding.
3.10 FABRICATION TOLERANCES After fabrication, all completed assemblies shall be measured for dimensional accuracy by the Pipe Department craftsman and verified by the QC Inspector for "Q" spool dime-anal O
accuracy checks. The tolerances shall normally be a
accordance with Figure 6.9E-7.
Where deviations eater than those allowed by Figure 6.9E-7, the spool piece i.aall be reworked until it is within acceptable tolerances. If the tolerances cannot be met, the PS shall request a design change from Engineering.
I When spools are joined with other spools, valves, in-line components, etc. in the PFS, the tolerance on the completed assembly shall be in accordance with the cumulative tolerance on each individual item, e.g. spool A, tolerance 2 1/8" joined to spool B, tolerance 21/8"; total tolerance on assembly A-B is 2 1/4".
If an acceptable tolerance is unobtainable due to dimensional discrepancies in components supplied to B&R by others, Engin-eering shall be notified prior to any rework.
t 3.11 TORQUING The threads on bolts and nuts shall be clean and free of dirt and grit.
Tighten bolts diametrically opposing each other so there is a uniform bearing surface around the joint.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195 05/14/84 CP-CPM 6.9E 7
18 na 77 All bolts shall be engaged so that there is a minimum of one full thread through the nut or threaded attachment.
If it is not possible to visibly check the thread engagement, the bolt shall be long enough to engage the threaded attachment with the same number of - threads as required for a hex nut.
Flanged pipe joints shall be tightened sufficiently to prevent leakage during pressure testing.
Flanged connections on in-line equipment (valve bonnets, etc.)
shall be tightened in accordance with the manufacturer's instructions. Where vendor manuals, drawings, or instructions are not available, the PS shall request instructions from Engineering.
i "Q" flanged pipe joints shall be documented as required by CPM-6.3.
3.12 PIPING DESIGN LOCATION Verification of alignment shall be made at the time of fit-up (flanged connections or weld joints).
The piping shall be located to the dimensions shown on the B&R
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installation drawings. Erection tolerances shall be as requirad by paragraph 3.12.1.
Prior to making a piping connection to equipment, verify that the acuipment has been " approved" for piping as per Procedure MCP-1.
Contact the Mechanical Superintendent to facilitate the removal of desiccant and/or purge, and to monitor the alignment of rotating equipment during welding operations.
Final connections to equipment and valve flanges or nozzles shall be accomplished by adjustment of the piping and supports to provide accurate alignment at these joints without stressing of the pipe, equipment, or valves. Springing, bending, or localized heating to obtain alignment shall not be done without approval of Engineering. Weld joint alignment, temporary attachment lugs, straps, etc.
used for weld fit-up and alignment shall be in accordance with Appendix 6.9D.
Once the piping has been brought into position, the piping i
location shall be checked against the installation drawing for conformity by the craf tsman.
Piping out of design location shall be adjusted until it is as close to its design location as possible. When it cannot be brought to within tolerances given in paragraph 3.12.1 without bending of the piping, cold spring, or localized heatins, the PS shall
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PROCEDURE EFFECTIVE BROWN & ROOT, INC.
NUMBER REVISION DATE l
PAGE CPSES
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JOB 35-1195 CP-CPM 6.9E l
7
!05/14/84 l
19 of 27 Measurement for piping locations shall be taken using control base lines and bench marks set up by the B&R Field Engineering Department. The use of as-built column lines, floor lines and other structures as reference is not permitted.
3.12.1 Erection Tolerances Piping shall be installed within the following tolerances:
a.
Gradient - 1/16" per foot maximum (vertical and horizontal) b.
Slope - Minimum slope shall be as designated on the drawings c.
Location - Care should be taken to install piping exactly on location. When this cannot be accomplished, the following tolerances are permitted:
1.
Unit I and Common buildings - 22 inches 2.
Unit 2 Reactor Containment, Safeguard, Turbine buildings and Unit 2
yard piping t
inch.
d.
Clearances - A minimum of two-inches of clearance shall be maintained, including pipe insulation with respect to other piping when one or both lines have an operating temperature of 200'F or greater. All other lines may be installed with a
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minimum of one-inch clearance, including insulation with respect to other piping.
When location specified on the drawings result in clearances less than that specified above, Site Engineering shall be contacted for resolution.
3.13 PIPE, HANGER, AND OTHER STRUCTURAL MATERIAL SALVAGE When items cannot be used because of redesign, misfabrication, damage, the disposition to Nonconformance Reports, etc., the items may be scrapped, salvaged, or returned to bulk stock. The responsible foreman shall make this determination based on the NCR, CMC or the item's physical condition, as appropriate.
When subassembly modification results, documentation for such modification shall be prepared as required by Appendix 6.9G and the modification accomplished accordingly.
A " Return to Warehouse" form shall be used when items are re turned to the warehouse, and a copy should be sent to Material Control. Subsequent reissue of these materials shall be in accordance with CP-CPM-8.1.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 20 of 27 Items may be salvaged and/or returned to bulk stock. The craf tsman shall verify that the appropriate identification markings, including material specification, rating or schedule, grade, and heat or code number, are present prior to the cutting of the materials. The materials shall then be color coded in accordance with Appendix 6.9C.
3.13.1 Items to be salvaged or returned to bulk stock shall be treated as follows:
i 6
3.13.1.1 Carbon Steel Pipe and Fittings Carbon steel pipe and fittings may be salvaged or returned to bulk stock without QC verification. If welds are salvaged, they shall be listed on the Piping and Structural Salvage Sheet (PSSS, Figure 6.9E-8) and shall retain their original identification. The new identification shall be cross-referenced on the PSSS, and a copy attached to the new documentation.
3.13.1.2 Stainless Steel Pipe A PSSS shall be completed.by the Pipe Department foe stainless pipe that has been welded and is to be returned to i
bulk stock. The salvage form shall define what welds are being removed and shall provide for the removal of the heat af fected zone of the pipe prior to return to bulk stock.
The heat affected zone shall be considered as two inches in each direction from the toe of the weld. QC shall be notified prior to cutting the welds to verify the heat af fected zone removal. Stainless steel pipe without welds i
may be returned to bulk stock as discussed in paragraph 3.13.1.1 without salvage forms, and material identification and color coding shall be maintained.
3.13.1.3 Stainless Steel Fittings A PSSS shall be prepared by the Pipe Department for the
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salvaging of stainless steel fittings which have been welded.
It is preferable not to cut welds to fittings, but to cut the pipe approximately one pipe diameter from the toe of 1
the weld. Formed fittings which have been welded shall not be returned to bulk stock.
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Traceability to the completed welds shall be maintained through the original isometric and weld numbers.
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 21 o f 27 When welds must be cut and the fitting reused, the salvage form shall provide for an evaluation of the fitting's weld history by Welding Engineering.
"New" welds made to the fittig shall be treated as repairs and shall comply with the requirements of Appendix 6.9D, paragraph 3.19.2.3.
Restrictions on reuse of the fittings shall be described in item 5 of the PSSS by Welding Engineering. A copy of the PSSS shall become part of the new documentation package.
3.14 VALVE DISASSEMBLY / REASSEMBLY The Mechanical Superintendent (MS) shall docunent the disassembly of all valves, in accordance with procedure CPM-9.18.
3.15 MARKING Pressure boundary parts shall be marked using the following techniques except as stated below:
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"^^x'"o TYPE OD MARKING THICKNESS TECHNIQUE Spool Number k" and greater S/V Weld Ntsaber k" and greater S/V Radiog'raphy Bench Marks k" and greater S/V Flow Direction k" and greater S/V Spool Number Imse than k" V
Weld Ntsaber Imss than k" V
Radiography Bench Marks Im ss tha n k" V
Flow Direction Imss than k" V
Piece Number All M/V Heat Ntsaber All M/V ASTM / ASME No. and Sched. All M/V In-Service inspection All S
NOTE:
Care should be used when marking short pieces of pipe to ensure the markings are act inadvertently removed during the cleaning / fabrication process prior to beig recorded on the weld docunentation.
O CP-CPM 6.9E Rev. 7 DCN #1 5/30/84 Sheet 2 of 2
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PROCEDURE EFFECTIVE CPSES FUMBER REVISION DATE PAGE
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JOB 35-1105 CP-CPM 6.9E 7
05/14/84 22 of 27
- Marking Techniques S - Steel Die Stamp V - Vibro-Tool M - Nissen Ink Marker or Marsh Marker Piping of the following categories and sizes shall be marked by vibrating marking tools instead of die stamp.
CATEGORY SIZE 601 12" 601 G 6" and 16" 1501 G 16" 2501 G 4"
The marking will be verified by the QC Inspector for "Q" piping. Pipe shall be marked by the craf tsman prior to curting for fabrication as follows:
1.
"Q" Pipe Heat number, piece number, spool number, ASME grade number and schedule.
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2.
"Non-Q" Process Pipe - Piece number, spool number, color code or ASIH/AS:iE spec. and grade.
3.
Plumbing Pipe - Piece number, spool number.
In-line components will normally have a unique number.
If this number is not on the component, the item shall be identified with the unique number by marking with a Nissen Ink or Marsh Marker or by tagging.
In-line compo'nents which require a specific orientation (check valves, filters, etc.) should have the flow direction indicated on their exterior with a Nissen Ink Marker or Marsh Marker or the manufacturer's standard metnods.
I 3.15.1 Limitations on Marking Methods Electric are marking pencils shall not be used for any marking applications.
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PROCEDURE EFFECTIVE (O
CPSES NUMBER REVISION DATE PAGE
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JOB 35-1195 CP-CPM 6.9E 7
23 of 27 05/14/84 3.15.2 Marking Techniques l
Die-stamping shall be done with a round-nose die stamp.
Characters used shall have filleted corners. The impressions i'
produced shall not exceed a depth of 1/32 inch and shall have rounded bottoms with a radius not less than 0.0025 inch.
I Vibro-tool marking shall be done with a tool fitted with a carbide marking point which has a minimtei point radius of
.005 inch. The impressions shall not exceed O.
.nch.
Marsh metal markers shall be those having either T-21 or T-20 ink only, i
All markers, die stamps, vibro-tools, etc. may be used interchangeably on carbon steel and stainless steel without being intermittently decontaminated.
3.15.3 Marking Requirements p
Each spool shall be identified where practical by a name tag
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v attached by banding and in addition in all cases by marking the spool number into the spool approximately 4 inches from the upstream field weld end.
The last digit (s) of each weld number shall he marked by the craftsman adjacent to the weld, normally 2 inches from the weld on the downstream side e.g., weld nasaber CW-1-RB-32-3 will have the nimiber 3 marked adjacent to the weld.
5 The radiography technician shall place the required radiography bench marks on the pipe.
4 Each spool shall have flow arrows marked by the craftsman into the intet and one of the outlet ends. The flow arrow I
should be placed approximately 4 inches from the end of the spool. The correct flow direction will be shown on the fabrication drawing.
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CP-CPM 6.9E Rev. 7 DCN #2 6/12/84 Sheet 2 of 2
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE
, JOB 35-1195 CP-CFM 6.9E 7
05/14/84 24 of 27 Welds which require volumetric-type inservice inspections shall be stamped by the craf tsman prior to completing the root pass. The fabrication drawing will indicate those welds requiring inservice inspection. The welds shall be marked in accordance with FSM-00106 and the following:
1.
The mark shall be a center punched mark centered in a 1/4 inch letter "0".
A 1/4 inch arrow chall be located adjacent to the mark pointing toward the weld.
2.
The center of the weld shall be located by a standard 4 inch offset dimension. Where the 4 inch dimension cannot be used due to the configuration of the piping, 4
an alternate dimension greater than twice the pipe wall thickness may be used. The alternate dimension must be
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st'asped adjacent to the center punch mark and arrow.
I The location of the center punch mark shall not vary from the standard 4 inch dimension or from the alternate dimension by more than 2.010".
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NOTE:
Inservice inspection marking is required for Class I piping greater than 1" nominal pipe, size, Class 2 piping greater than 4" nominal pipe size and is not required for containment spray piping or any other welds exempted by Engineering.
3.15.4 Temporary Marking o
Paint, ink, tape, or tags may be used for temporary' markings provided the requirements of the specifications are met.
Temporary marking materials shall be removed from the U
material surfaces prior to any heat treatment or assembly which render the markings inaccessible and at locations that interfere with the acceptance inspection. Marking materials may be removed by using water, white kerotene, or Stoddard solvent followed by an acetone or alcohol rinse.
For austenitic stainless steel, a final rinse with dominera11 zed water is required.
Mechanical markings may be used for temporary marking provided the following criteria are met ti i'
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PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 CP-CPM 6.9E 7
05/14/84 25 of 27 1.
Temporary mechanical marking need not be removed provided that the requirements for impressions delineated above are met.
i 2.
If the requirements for temporary markings in the above paragraph are not met, the mechanical markings shall be removed prior to acceptance inspection by grinding, machining, or wire brushing and shall blend smoothly into the surface contour without violating the minimum wall thickness requirement.
3.
Ground-out areas, resulting from the removal of temporary markings, shall be inspected by the same surface inspection method and to the same acceptance standards as previously used to accept the base material.
3.16 INSULATION Piping and equipment insulation shall be installed in accordance with Specifiertion MS-30.
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If, in the opinion of the Insulation Superintendent or Engineering, more explicit information is needed to insulate the additionrl requirements will be a specific item, a
delineated in accordance with Procedure CPM-6.3.
Prior to insulation of ASME-related items, a written release shall be obtained from the Site QA Manager. Non-ASME-related piping may be insulated af ter TUCCO QA's acceptance of the pressure test and signature of the pressure test record.
3.17 PIPE HANGERS Piping should be erected in its permanent hangers. If the permanent hangers are not installed, temporary hangers may be used. Piping may be temporarily supported from other piping provided adequate precautions are taken to prevent damage to the supporting pipe. Piping shall not be supported by valves, pumps, or other equipment, and care shall be taken to ensure that pipe attaching to these items is adequately supported.
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JOB 35-L195 CP-CPM 6.9E 7
05/14/84 26 of 27 Unattended pipe attached to equipment will not be temporarily supported by items which are readily removable, such as lumber, Jack stands, chain falls, etc.
Such piping shall be securely supported with hard supports which are rigidly attached to the pipe, such as a structural support secured to the pipe with all-thread rod, a pipe clamp suspended by l
rod, clamped-lashing, etc.
To ensure proper alignment, piping should be run toward equipment instead of from equipment. Care shall be taken not to cold spring piping when connecting to equipment.
When piping is connected to equipment, a minimum of two temporary or permanent supports shall be provided; when two j
supports cannot be provided, written direction from Site
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Engineering describing the deviation shall be obtained.
3.18 PIPE CONNECTIONS TO ROTATING EQUIPMENT To ensure proper alignment, suction and discharge piping should be run toward rotating equipment instead of from
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equipment. The connections of suction and discharge piping to the equipment should be af ter sufficient piping and sufficient permanent hangers have been installed which would prevent the movement of pipe at the equipment when additional piping was added to the system.
Permanent hangers and supports shall be installed and adjusted to the cold position as indicated on the drawings prior to suction and discharge connections being made to rotating equipment. When permanent supports cannot be installed, temporary hard supports may be used with written approval from Engineering.
!i 3.18.1 Rotating Equipment Fit-up Fit-up of pipe to equipment shall be accomplished by adjusting the pipe and supports to provide accurate alignment without stressing the pipe or the equipment.
3 4
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BROWN & ROOT, INC.
PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE i
tO JOB 35-1195 CP-CPM 6.9E 7
27 of 27 05/14/84 The rotating equipment coupling alignment is to be monitored during the suction and discharge fit-up and weld out (or bolt up) to ensure that the equipment is not being moved and that the coupling alignment is maintained within the desired limits.
If temporary supports were use'd as permitted above, and the suction and discharge was connected to the equipment,.
special care shall be exercised when removing the temporary supports. The Millwright Department shall be notified so that they may monitor the coupling alignment from the time the temporary support removal begins until the permanent support installation is complete.
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ISSUE BROWN & ROOT, INC.-
NUMBER REVISION DATE'.
PAGE CPSES JOB 35-1195 7
05/14/84 1 of 1 CP-CPM 6.9E TABLE 6.9E-1 g as== mazz og~2
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NUMBER REVISION DATE PAGE 9_.
CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84 1 of 2 FIGURE 6.9E-1 BUTTWELD END PIPE - NUCLEAR PIPE
& **tt' u
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9 160 -
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$ 2n f
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3.359 go
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120 140 10.740
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J bevel to J bevel, the 1and dimension for. e 0
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MOTI 2:
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BROWN & ROOT, INC PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE G
JOB 35-1195
{
i CP-CPM 6.9E 7
05/14/84 i 2 of 2 FIGURE 6.9E-1 BUTTWELD PREPARATION - NUCLEAR PIPE y ;, l 70R wnLL THICKfN3583(T)#/WTO '!4,'.I CLU3llE rrenwnsoweaus etnecr4Nro 51g tt; W* *'u th I & O kl.
~g I
40/40s.'
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,aog
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for straight pipe, the counterbore
/0 3
counterbore depth shall.be 1/4" minimum; g
8 5
/2 05 depth shall be 2T for ASME Code classes
/E
- [ Msg 1 and 2, and 1/4" minimum for ASME gas S0
//505*
Code class 3 piping.
JTO 13.3c2 14 4o 13.t TE 80
, /T.64G is 370 IS set i
40 s3084 STD 173cr l
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BROWN & ROOT, INC PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE PAGE O
f JOB 35-1195 s
CP-CPM 6.9E 7
05/14/84
[ 1 of 4 FIGURE 6.9E-2 m
BUTTWELD PREPS - Non-Nuclear 7 :fg.
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120 3.692 160 3.523 6
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40/405 8.020 80iS05 r.70, 120 r.325 1C 40/405 10.070
,t 805 9.834 80 9.669 12 STD/405 12.052 i
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- TOLERANCE + 0.010" s
80 11.505
- 0.040" 14 STD 13.302 40 13.192 i
15 u.084 80 12.646 l4 i
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ISSUE n
' BROW & ROOT, INC..
MJMBER REVISION DATE PAGE
' s' CPSES JOB 35-1195 CP-CPM 6.9E l.
7 05/14/84 2 of 4 FIGURE 6.9E-2 BUTTWELD PREPS - Non-Nuclear O'!1 *
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110 15.225 SC 13.154 110 15.3M
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BROWN & ROOT, INC PROCEDURE EFFECTIVE CPSES NUMBER REVISION DATE lPAGE G
l JOB 35-1195 CP-CPM 6.9E 7
05/14/84 3 of 4 FIGURE 6.9E-2 BUTTWELD PREPS - Non-Nuclear wn"
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BROWN & ROOT, INC.-
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84 4 of 4 FIGURE 6.9E-2 BUTTWELD PREPS - Non-Nuclear A!c?? :
AFP/CA Ali 7?? NCH NUCf.JAA WELD ic/N 7'S, NUCL4AA A 5M 4 SEC 3 C4 3 2nC# Nf405,.ANC f*.&,. /H TWG i~75EC.
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BROWN & ROOT, INC..
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 CP-CPM 6.9E,
7 05/14/84 1 Of 1 FIGURE 6.9E-3 DETERMINING WALL THICKNESS AFTER MACHINING RAIGHT 2Cdd P/G/0 MATER /A/. CF MMCWM ;~MickNES5 -
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BROWN & ROOT, INC.-
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 7
CP-CPM 6.9E 05/14/84 1 of 1 FIGURE 6.9E-4 HALF COUPLING BEVEL DETAIL 6CLXCT WE!.D 02 Tl/ECACfD lJN.F
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BROWN & ROOT, INC.-
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 7
CP-CPM 6.9E 35/14/84 1 of 1 FIGURE 6.9E-5 PIPE BENDER QUALIFICATION FORM n-r
?.
BENDER SHOE NO.
DIPE MAT'l SIZE SCH.
AVG. DIA. BEFORE BEND CUT NO.
1 2
3 4
5 6
7 8
MAX. DIA. IN. AFTER BEND O
MIN. DIA. IN. aFTEa BEND DIFF. IN.
% DIFF.
MIN. WALL THICKNESS BEFORE BENDING MIN. WALL THICKNESS AFTER BENDING DOES CUT VIOLATE MIN. WALL 1 Ovality = (DIA. MAX. - DIA. MIN.) (AFTER BEND)
AVG. DIA.
(BEFORE BEND) l.
I; Performed by Date Date QA Witness AN! Witness Date 1 }1 Eng. Approval Date l
Measuring and Test Equi; rent Calibration Dates WmW
..~.~.a ISSUE
-:J BROWN & ROOT, INC.-
NUMBER REVISION DATE PAGE CPSES JOB 35-1196 7
CP-CPM 6.9E 05/14/84 1 of 3 FIGURE 6.9E-6 I
, v.uuns.ustiL--.-.. ~
s PN
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vat.vE SF*'-
P" N" gpq gun
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- HM. 3 FLACES 4
1 - Spacer spool shall be of material.which is compatible NOTES:
for welding to permanent material and shall be desig-nated by Welding Engineering on the Weld Data Card.
2 - This configuration shall be used for both carbon and stainless steel.
3 - Tape joint af ter tack welding.
j 6
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ISSUE
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BROWN & ROOT, INC..
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84
~2 of 3 FIGURE 6.9E-6 vAtv E DiMtt45tott
}-
(-
f N
-l F
A l
{
l PIPE RU'l VAU/E, SPY,L PIPE M it 1
,i j
- THREADED MIPPd, SCH.O PtPEjAfsTli-ALEO. LZtt"sitt TO F67 VAWE Dit4Ef 4Slott O_
@ -150*3RAtSED FACEjASTM-NQS, AGRGED CAStCM *,TEt.,764 AEACED FtAtt".E l
h - GASMETj C~'tiPATAf5LE WITH ADCACEt4T PIPE Rutt NTESr: THIS CsHCt"-tJRATICft To FE USED wsTel 6" Artti St:ALdA 511 E Mris wwsn rwsuten mor.k H voso >403T tA tr tit phi H " VALVE ^/ Alt.ABIt.T f
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Pl#t MUH VALVE SP"#.t PtPE RU)4 N
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- SCH.19 PIPE, ASTM-Al20, LEftbTH TO FIT YAWE DIMENSIOtt i
" ~t[ PLATtj AJ6 STEEt., CUT At40 BORED TO MATCH FLANGE
- CsA& MET COMPATABL.E WITH ADJACEttT PtPC Ruff j
l ticit$ 1 THIS CONF 140R&7lOpd TO BC USED WITH 6"AND GRSCR Pit'C RuHS l
wente rusuins Aniyow Hrono Mis T st onett www 4 to vAs.vs A/AILAHuty
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.a ISSUE Q
BROWN & ROOT, INC.-
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84 3 of 3 FIGURE 6.9E-6 VALVE SPOOLS
, f A5'ET ftMPATAFt.E PflT1' Pff E A 44 i
, A.
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PiM peJM e MSitEL. M. ATE P'M Mitt 4
f C.*eip499.9 Car SLttyFS
-.i, rwt tin a
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^U BROWN & ROOT, INC..
NL'MBER REVISION DATE PAGE t
CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84 1 of 2 FIGURE 6.9E-7 FABP! CATION TOLERANCE t
1.0 SCOPE 1.1 This standard covers general pipe shop fabricating tolerances #or prefabricated piping asseriblies.
2.0 LINEAR TOLERANCES 2.1 The tolerances on linear dinensions (interrediate or overall) apply to the face to face, face to end, and end measurenents of fabricated straight pipe ahd headers; center to end or center to face of nozzles or other attachnents; or center to face of bends; as illustrated on Figure 1.
These tolerances are not accumulative.
2.2 Linear tolerances on "A" are 21/8" for sizes 10" and under and
- 3/16" for sizes 12" through.36".
2.3 Linear tolerances on "A" for sizes over 36" are subject to toler-ances of e 3/16", plus or minus 1/32" for each 12" in diameter over 36".
2.4 Due to the etsnulative effects of tolerances on fittings or flanges, when joined without intervening pipe secerents deviations in excess of those specified in paragraphs 2.2 and 2.3 may occur.
i-I 3.0 ANGlit.ARITY AND ROTATION TOLERANCES
}
3.1 Angularity tolerance across the face of flanges and weld end pre-pration and on rotation of flanges are as stated on Figure 1.
4.0 CLOSER TOLERANCES a.1 When closer tolerances than those given in paragraphs 2.2, 2.3 and 2.a are absolutely necessary, they shall be subject to acree-ment between the Purchaser and Fabricator.
1 O
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SROWN & ROOT, INC..
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 7
05/14/84 2 of 2 CP-CPM 6.9E FIGURE 6.9E-7 FABRICATION TOI.lRXKCE
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+
l Q BROWN & ROOT, INC..
MJMBER REVISION DATE PAGE
-i CPSES JOB 35-1195 CP-CPM 6.9E 7
05/14/84 1 of 1 FIGURE 6.9E-8 Piping and Structural Salvage Sheet Initiated By:
Date:
1.
Current itert identification number.
2.
Description of Modification.
ConfigurationandDi$ensions 3.
Old Weld Neber New location or Weld Ne ber
- f 4 CC verification of rerieval of heat affected zone for stainless steel piping.
s QG Inspector Date 5.
a) Welding / repair history verification a
cate b) Limitations or special conditions for reuse
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BROWN & ROOT, INC,.
NUMBER REVISION DATE PAGE CPSES JOB 35-1195 7
05/14/84 1 of 1 CP-CPM 6.9E FIGURE 6.9E-9
'd g n tin BACKING RING l
I
!F USED SHALL ote l' C
BACKING RING
\\ 2 IF USED SHALL M(4h. _
ft $ 7 / k% BE REMOVED y;;*r y p' t
'N N
Note 1 g
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in M,in.
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t I" M
's
+
~
+
ri' 7 Note 1: For Class 3 piping, i
backing rings may be left in place.
t = nominal thickness of part penetrated Note 2: Reinforcement configu-a nominal thickness of penetrating part ration for items such tn:
or 1/4 in., whichever is less as soc-o-lets shall al-tc = 0.7 t OM r1 = 1/4 t or 3/4 in., whichever is less so meet the require-n 2 = 1/4 in. minimum ments of the manufac -
r turer's recomendatiens-
.. g _.
C BROWN & ROOT, INC.
PROCEDURE EFFECTIVE I
CPSES NUMBER REVISION DATE PAGE
- O i
JOB 35-1195 CP-CPM 6.9E 7
05/14/84 1 of i FIGURE 6.9E-10 FLANGE DISASSEMBLY LIST
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I amp.
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