ML20236N785
ML20236N785 | |
Person / Time | |
---|---|
Site: | Comanche Peak ![]() |
Issue date: | 02/19/1987 |
From: | Hansel J, Schanf J, Zill R EVALUATION RESEARCH CORP. |
To: | |
Shared Package | |
ML20236N530 | List:
|
References | |
QI-025, QI-25, NUDOCS 8708120109 | |
Download: ML20236N785 (20) | |
Text
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() EVALUATION RESEARCH CORPORATION UNCONTROLLED COPY COMANCHE PEAK RESPONSE TEAM QUALITY INSTRUCTIONS FOR ISSUE-SPECIFIC ACTION PLAN VII.c INSTRUCTION NO.: QI-025 -
REVISION: 4 EFFECTIVE DATE: 02-19-87 i
REINSPECTION OF LARGE BORE PIPING CONFIGURATION Prepared by: ~
Date: ~
2//7/87 0' (/
Approved by: .
f -- Date: 51 -/ @ -? 7 Is e Coordinator Q
Approved by: .
// Date: . Ib~b On-$ite (TA Rept ntative g
Approved by:
QA/
w Review Team Leader Date: Z"//B/ ?7 B708120109 870731 PDR A ADOCK 05000445 PDR
sQt-025 e Rav. 4 l 1.0 PURPOSE
' This procedure provides instructions and guidance for determining whether the large bore piping configuration meets the requirements of,the design detueents and drawings.
2.0 APPLICABILITY l
This procedure should be implemented for all large bore piping configuration inspections. Large bore piping configuration inspections shall include all ASME III Code O'. g g 2, or 3 piping shownLon the Brown & Root piping isometric apId Stone & Webster piping isometrics for the Unit 1 Diesel Generator cLid piping. The boundary shall include:
2.1 All safety related piping with nominal pipe diameter 2 1/2 {
inches and large.
2.2 All safety related in-line pip'e components (i.e. , shut-off valves, strainers, bolted joint locations, etc.).
2.3 All safety related in-line instrumentation control and indicating devices (i.e., flow elements, temperature sensingt elements, pressure sensors, orifice flanges, etc.)
2.4 ig) b All branch process connections (i.e. , sockolet, weld-o-let, tee) including 2-inch and smaller connections coming off safety related 2 1/2 inch and larger pipe.
2.5 All vent, drain and instrument connections coming off safety related piping up to and including the root isolation valves (s).
1 3.0 Rj.FERENCES 3.1 CPP-009, " Performance of reinspection and Documentation Review."
3.2 Description Memorandum QA/QC-RT-281, dated 8/14/85, delineating documentation used in the development of l procedures including specific sources for attributes and 9 exclusions.
4.0 CENERAL 4.1 Reinspection are performed and documented in accordance with established project procedures and instructions. This instruction establishes the attributes and accept / reject "
criteria for reinspection of large bore piping configuration. 1 (see Reference 3.1) 2
QI-025 Rev. 4 5.0 INSPECTION PROCEDURE Reinspection of piping shall be limited to that piping which is l
designated as ASMI III, code Class 1, 2 or 3 pipe. The pipe code class may be determined by the last number in a line number, i.e. ,
the final 2 in line number 3"CA-2-011-152-2 indicates ASME III code Class 2 pipe. An alternative method is by the use of spool numbers, i.e.,
~
3 Q
2 indicates spool number 3 ASME III code Class 2.
I Verification of the attributes to be inspected will be recorded on the Comanche Peak Review Team Checklist, Attachment 6.1.
5.1 General Requirements The following tolerances shall be used in checking the orientation of piping and piping system components unless specific tolerances are identified with a specific attributep Slope: Minimum slope as identified on the piping
() Centerline Elevation:
isometric drawing.
22 inches in vertical plane Location: !2 inches in the horizontal and vertical plane for all piping.
Linear: All pipe and pipe component lengths shall be within i 2 inches of the linear dimension shown on the piping is ometric drawing.
When measuring piping or piping component in-line dimensions and location a measuring device with increments of not greater than 1/16 inch is required. For measuring angles the instrument used must be incremented in 1 degree increments.
Established reference points, such as permanent bench marks, shall be the base reference used to establish the elevations and N-S, E-W location point on the piping isometric drawing.
From this point plumb lines, lines with line levels, direct measuring tape measurements, transits, etc. may be used to establish location.
5.2 Piping Orientation NOTE: Alphanumerics in parenthesis following the attribute refers to the checklist number.
O 3
QI-025 Rov. 4 5.0 INSTECTION PROCEDURE (Cont'd)
\/- 5.2 Piping Orientation (Cont'd) 5.2.1 Component Sequence (1.a)
Visually inspect to ensure valves, branch connections, vents, drains, sample connections, orifices, flow elements and/or other inline piping components are installed in the sequence shown on the piping isometric. No deviation from the sequence shown on the isometric drawing shall be permitted.
5.2.2 Centerline Elevation (1.b)
Ensure that centerline (CL) elevations of horizontal piping is in accordance with the isometric drawing.
No pipe shall be located such that the CL elevation is outside the tolerance defined under " General ~l Requirements" (see paragraph 5.1), hereaf ter referred to as tolerances.
5.2.3 N-S, E-W Location (1.c) t Ensure that the pipe run or piping component which is located with N-S, E-W dimensions is installed in e accordance with the locating dimensions given on the
' piping isometric. No pipe run or piping component located by N-S, E-W dimenuions shall be located outside the allowed tolerance (see paragraph 5.1). If N-S, E-W locating dimensions are not contained within the reinspection boundaries of the piping isometric, this attribute may be marked "N/A".
5.2.4 Linear Dimensions (1.d)
Ensure that the actual piping dimensions are in ,
agreement with those shown on the piping isometric. !
All linear dimensions shall be taken from center-to- !
center, end-to-center, face-to-center, or end-to-end {
as applicable. The in-line linear dimensions of l )
piping components, valves, instrument connections, vents, fittings, piping length, etc. , shall be governed by the linear tolerance for piping (see paragraph 5.1).
5.2.5 Branch Connections (i.e)
Visually check to ensure that branch connections are in accordance with the pipinE isometrics, i.e., if an ANSI tee is required substitution with a weldolet or welded branch connection is not acceptable.
4
QI-025 Rev. 4 5.0 INSPECTION PROCEDURE (Cont'd)
() 5.2 Piping Orientation (Cont'd) 5.2.6 Piping Clearance (1.f) 5.2.6.1 For pipes with operating temperatures of 200*F and above ensure that the CL of the pipe is within 1/4 inch of the sleeve CL. For lines with operating temperatures of less than 200*F ensure a minimum of 1/2 inch clearance between the pipe 0.D. and the sleeve I.D. Any deviations to the above clearance shall be brought to the attention of the QA/QC Support Engineer.
Four measurements shall be provided, taken at 90 degrees apart, between the pipe OD and the sleeve ID. Line temperatures and insulation -
requirements are identified on Attachment 6.2.
(See Note 1 and 2 below.) l 5.2.6.2 Ensure that a minimum of p inches clearance is maintained, including pipe insulation, with ,
respect to other piping when the line to be inspected has an operating temperature of 200'F and greater. All other lines may be O installed with a minimum of 1 inch clearance, including insulation, with respect to other piping. Notching of insulation to maintain clearance is acceptable in order to maintain the above clearances. Line temperatures and insulation requirements are identified on Attachment 6.2. (See Note 1 and 2 below.) l 5.2.6.3 For pipe operating at 200'F or greater a minimum of 1 inch including insulation, shall be maintained between the pipe or pipe insulation and hangers, walls, ceilings, hand rails, etc. All other lines may be installed for insulation clearance only. Notching of insulation to maintain clearance is acceptable. Line tertperatures and insulation requirements are identified on Attachment 6.2. (See Notes I and 2 below.) l Note 1: The opera ~cing temperature for branch lines, i.e., vents, drains, instrument and local sample connections, not identified by line number shall be the same operating temperature as the run pipe. These branch lines are not required to be O identified on Attachment 6.2.
5
4 QI-025 Rav. 4 g 5.0 INSPECTION PROCEDURE (Cont'd)
(/ 5.2 Piping Orientation (Cont'd)
Note 2: When piping is not insulated at the time of inspection, clearance shall be determined based on the existing conditions. The insulation thickness specified on Attachment 6.2 is not required to be used by the ERC inspector to estimate pipe clearances when the pipe is uninsulated at the time of inspection.
5.2.7 Nominal Pipe Size (l.g)
Ensure that the nominal pipe size is in accordance with the piping isometric. Either circumferential or -
direct measurement of the outside diameter using an instrument capable of measurement in increments of 1/16 inch may be used. Attachment 6.3 may be used to verify the specified nominal pipe size.
5.2.8 Slopes (l.h)
Ensure that the minimum slope requirement is in O
- accordance with the piping isometric. A combination of levels, line levels, and linear measurement using an instrument incremented with 1/16 inch increments is acceptable for establishing slope. Known C.L.
elevations may also be used to calculate slope.
5.2.9 Mechanical Joint Location (1.1)
Verify that all bolted flange joints are dimensionally located in accordance with the piping isometric.
Tolerance shall be as previously specified for linear dimensions. Ensure that threaded joints are located as shown on the isometric. Exact location of the threaded joint is not required.
5.3 Valves 5.3.1 Elevation (2.a)
{
Verify that the CL elevation of all in-line valves is )
4 in accordance with the piping isometric drawing and l that the orientation of instrument valves is per the '
piping isometric drawings, i
6
______ -___________________U
QI-025
. Fav. 4 5.0 INSPECTION PROCEDURE (Cont'd)
'A !
-(,,) NOTE: Exact CL location of vent, drain, instrument, and local sample root isolation valves is not required. However, the orientation shall be i in accordance with the piping isometric !
~ drawing and the length of the pipe nipple l shall be subject to the linear tolerances. l }
5.3.2 Stem Angle (2.b) '
In horizontal pipe lines, ensure that the valve stem orientation is within i 5 degrees of the orientation shown on the piping isometric drawing. For valves 2 inches in diameter and under in horizontal pipe lines where the specific orientation is not shown on the isometric, the valve stem shall not be located below the horizontal. For valves larger than 2 inches in' diameter located in the horizontal piping where the -
specific orientation is not specified on the isometric, the valve shall be located in the vertical upright position. In vertical pipe lines the stem angle shall be oriented to avoid interference.
t 5.3.3 Valve Identification Number (2.c)
I Obtain Valve Serial Number from the ASME III
--) identification plate located on the valve when available. Record this cata and other data as identified on Attachment 6.4 for engineering evaluation.
5.3.4 Flow Direction (2.d)
Verify that the flow direction for the type of valves listed below is in compliance with that shown on the piping isometric drawing:
- a. Check valves
- b. Flow Control Valves
- d. Angle Check Valves
- e. Metal Diaphragm Valves
- 1. Rockwell
- 2. Kerotest
- f. Butterfly Valves
- g. Other valves when noted on the checklist.
The flow direction shall be verified by the flow arrow i on the valve body or by the configuration of the valve body. Additional guidance to determine flow direction will be provided by the engineer, as requested.
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3
)
QI-025 Rsv. 4 )
J
., 5.0 INSPECTION PROCEDURE (Cont'd)
\
5.3.4 Flow Direction (2.d) (Cont'd) ;
i NOTE: The QA/QC Support Engineer'shall include i the type of valve after the valve location number in column 1 of Attachment 6.4.
5.4 Eccentric Reducers 5.4.1 Orientation (3.a)
Verify eccentric reducers are oriented in accordance with the isometric drawing..
5.5 This section has been deleted.
5.6 Orifice / Flow Element Assemblies 5.6.1 Flange Tap Orientation (5.a)
Visually inspect to ensure that instrument line taps on orifice flanges are oriented as shown on the isometric' drawings. p NOTE: This criteria only applies to instrumentation g"~ orifices and not to those orifices whose only
( f function is flow restriction (see Section 5.6.3 for method of identification).
5.6.2 Location (5.b)
Verify that the orifice flange is dimensionally located in accordance with the piping isometric drawing within t2 inches.
5.6.3 Identification (5.c)
Ensure that the orifice plate Tag Number is in accordance with the isometric. An example of the Tag Number for a flow restricting type orifice is CP-1-CTORCS-06 and for a flow element, FE-4469.
5.6.4 Flow Direction (5.d)
The flow direction is indicated on all Flow Elements.
Perform a visual inspection to verify that flow direction through the flow element is in accordance with the isometric drawing.
8
QI-025 Rsv. 4
.,- 5.0 INSPECTION PROCEDURE (Cont'd) i
'5.7 Expansion Joints 5.7.1 Identification (6.a) l Verify that the name tag on the expansion joint is in accordance with the piping isometric drawing. The QA/QC Inspector shall review the data on the manufacturers expansion joint drawing with that shown against the installed joint to determine acceptability.
5.7.2 Tie Bars (6.b)
Ensure that all temporary tie bars have been removec from the expansion joints. Ensure that permanent tie bars have not been removed.
5.7.3 Dimensions (6.c)
Ensure that the end-to-end dimension of the expansion joint is in accordance with the vendors instructions and that the piping system has not forced the e expansion joint out of alignment. Tolerances shall be in accordance with the manufacturers drawing. . System operation is not acceptable during reinspection nor is
~
O.
s the operation of connected systems allowed unless the connected system is isolated from the expansion joint by a system pipe anchor.
NOTE: For those reinspection packages with isometrics showing expansion joints, a copy of the manufacturers expansion joint drawing will be included as an attachment to the reinspection package.
5.8 Screwed Joints 5.8.1 This section has been deleted.
i l
5.8.2 This section has been deleted.
1 5.8.3 Joint Sealant (7.c) {
Visually inspect for any evidence of the use of teflon tape on threaded joints. Any evidence of the use of teflon tape shall be cause for rejection of the joint. j l
l l
l l
1 l
9
l QI-025
. Rev. 4 5.0 INSPECTION PROCEDURE (Cont'd) 5.9 Strainers 5.9.1 Identification Number (8.a)
Obtain the Strainers Serial Number from the ASME Identification plate location on the strainers when available. Record this data and other data as identified on Attachment 6.6 for engineering evaluation.
-5.9.2 Flow Direction (8.b)
Ensure that the indicatsd flow direction through the strainer is in accordance with the isometric drawings.
Either flow strows on the strainer body er the manufactures drawings (s) may be used to determine flow direction. For those reinspection. packages, including -
strainers, a copy of the manufacturer's strainer drawing will be included as an attachment to the reinspection package.
5.10 Moment Restraints y l 5.10.1 Identification (9.a)
Moment restrainte are an integral part of the piping l
system pressure boundary. Verify the tag number on the moment restraint is in accordance with the piping isometric drawing. The QA/QC inepector shall review the data on the manufacturers moment restraint drawing with that shown against the installed restraint to determine. acceptability.
I 5.11 Elbows 5.11.1 Identification (10.a)
Verify that the type of butt welded elbow installed is f in accordance with the isometric. Specifically butt !
welded long radius elbews and short radius elbows are installed as required. Attachment 6.7 contains dimensional data to identify each type of elbow.
(Unless otherwise indictated on the piping isometric, butt welded elbows shall be long radius.)
l O
V 10 I
. l QI-025 Rav. 4 6.0 ATTACHMENTS
/)
V 6.1 Comanche Peak Review Team Checklist 6.2 Insulation Data 6.3 Pipe Size Table 6.4 Valve Data i
6.5 This Attachment has been deleted.
6.6 Strainer Data 6.7 Welding Fittings I
O 11
l l I
{
. Attechm2nt 6.1 COMANCHE PEAK RESPONSE TEAM Q1_025 CHECKLIST Rev. 4
/N POPULATION DESC VERIFICATION PKG NO.
4
( ,) LARGE BORE PIPING I-M-LBCO PAGE 1 0F 1
_ CONFIGURATION QUALITY INSTRUCTION QI-025 []) REINSPECTION []) UNIT 1 EQUIPMENT MARK / TAG NO.
] DOCUMENTATION REVIEW O UNIT 2
[ COMMON VERIFICATION ATTRIBUTE REMARKS ACCEPT REJECT DATE
- 1. Piping Orientation
- a. Component Sequence
- b. Centerline Elevation
- c. N-S.E-W Location
- d. Linear Dimensions t'
- e. Branch Connections t
(h) f. Piping Clearances
- g. Nominal Pipe Size
- h. Slope
- 1. Mechanical Joint Location
- 2. Valves
_a. Elevation
- b. Stem Angle
- c. Valve Identification Number
- d. Flow Direction PREPARED BY: APPROVED BY:
DISCIPLINE ENGR. DATE LEAD DISCIPLINE ENGR. DATE r^'N INSPECTED BY: APPROVED BY:
N,_,]
LNSPECTOR DATE LEAD INSPECTOR DATE CPP-007.lA Revision 0
Aiiohui 0.1 COMANCHE PEAK RESPONSE TEAM QI-025 CHECKLIST Rev. 4
[L' POPULATION DESC '
'i ERIFICAn0N PKG NO.
I.ARGE BORE PIPING I-M-LBCO PAGE 2 0F 3 CONFIGURATION ~ ~~
VERIFICATION A
ACCEPT REJECT DATE REMARKS
- 3. Eccentric Reducers
- a. Orientation
- 4. Deleted
- 5. Orifice / Flow Element Assemblies
- a. Flange Tap Orientation
- b. Location
- c. Identification p
- d. Flow Direction p 6. Expansion Joints
%.)
- a. Identification
- b. Tie Bars
- c. Dimensions
- 7. Screwed Joints
- a. Deleted
- b. Deleted
- c. Joint Sealant t
a C .* r - s u , . L ;, . sev.siOn O
_ a _ ..c c.:
COMANCHE PEAK RESPONSE TEAM QI-025 CHECKLIST Rev. 4 l't POPULATION DESC VERIFICATION FKG NO.
LARGE BORE PIPING I-M-LBC0 ? AGE _3 0F 3 CONFIGURATION VERIFICATION ACCEPT REJECT DATE 3
- 8. Strainers
- a. Identification No.
- b. Flow Direction
- 9. Moment Restraints
- a. Identification
- 10. Elbows .
- a. Identification
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Attachm2nt 6.3
' QI-025 Rev. 4 Page 1 of I
/~N LARGE BORE PIPING CONFIGURATION N.
VERIFICATION PACKAGE NO.
PIPE SIZE TABLE
- NOMINAL PIPE SIZE (IN.) ACTUAL OUTSIDE DIA. (IN.)
1/2 0.840 3/4 1.050 1
1.315 !
1 1/2 1.900 1 2 2.575 2 1/2 2.875 3 3.500 3 1/2 4.000 4 4.500 6 6.625 -
8 8.625 10 10.750 12 12.750 l 14 In. 6 LGR. Same as Nominal Pipe Size '
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- Actual outside diameter (IN.) has been extracted from CRANE Technical l Paper.
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' QI- 025 Welding Fitteings Rev. 4 .
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