ML20202A854

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Rev 7 to QI-QAP-11.1-20, Insp of ASME Component Support
ML20202A854
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 08/22/1980
From:
BROWN & ROOT, INC. (SUBS. OF HALLIBURTON CO.)
To:
Shared Package
ML18052B537 List: ... further results
References
FOIA-85-59 QI-QAP-11.1-20, NUDOCS 8607100146
Download: ML20202A854 (12)
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BRONM 1 ROOT, INC. ISSUE

, , , CPSES NUMBER REVISION DATE PAGE J08 35-1195 (Supplement 6.9F-V) 01-0AP-11.1-2C 7 8-28-80 1 of 7 m- -

TITLE: ORIGINATOR: s p./A fe, 0I-0AP-11.1-20 ' '

(SUPPLEMENT 6.9F-V) /2

[ OATE INSPECTION OF ASME REVIEWED BY: ,,,__ M ,_ # h 9 0 /- @

COMPONENT SUPPORTS

  • CAIE APPROVED B 4_ em -v S/er/ac p site QA Manager DATE 0.1 TABLE OF CONTENTS CPSES

1.0 INTRODUCTION

35- T i 95 CO NTRo!,,,

2.0 GENERAL 2.1 PURPOSE AND SCOPE 2.2

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Copy 3.0 INSTRUCTION ' '

3.1 COMPONENT SUPPORT INSPECTION 3.2 SEISMIC LIMITER (SNUB 8ER) INEoECTION CONT 3.2.1 Seismic Limiters 0.fi FIGURES 11.1-20-1 Pipe Clamp Detail 11.1-20-2 Sway Strut Bracket Detail 11.1-20-3 Sway Strut Assembly Detail 11.1-20-4 Seismic Limiter Detail 11.1-20-5 Seismic Limiter Bracket Detail 11.1-20-6 Snubber Inspection Checklist

1.0 INTRODUCTION

This instruction is to be used in conjunction with Appendix 6.9F,

" Fabrication and Installation of Component Supports" in the inspection of ASME Component Supports.

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BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) QI-0AP-11.1-2C 7 8-28-80 2 of 7 2.0 GENERAL 2.1 PURPOSE AND SCOPE This instruction is intended for the use of the QC Inspector when perfonning inspections on "ASME" Component Supports. It provides the necessary acceptance criteria to be used when performing such inspections to assure compliance with the applicable design specifications and ASME Code Requirements.

2.2 00CUMENTATION Component Support Operation Traveler Packages and Hanger Packages are prepared as described in Appendix 6.9F, Section 3.1.

3.0 INSTRUCTION ,

I 3.1 COMPONENT SUPPORT INSPECTION The following criteria shall be used when inspecting component

, supports and shall be documented using the Component Support Operation Traveler or Hanger Package as required by Appendices 6.9F and G.

NOTE 1: The verifications noted below are not necessarily applicable to all component supports. The actual inspections which are to be made are those which are established on the applicable documentation given the unique type and configuration of the support. Addi-tional holdpoints may be established by the Site 0A Manager as necessary.

NOTE 2: When supports are completed with the exception of items such as sway struts t- Mubbers, all other inspections may be perfonned an'4 the applicable items signed as acceptable. Ary 4.h m :eptions shall be noted on the MWDC or Travele 3y t, i JC Inspector placing an asterisk next to the inspection which cannot be completed. An explanation-of the uncompleted inspections shall be I

entered below as per the following example:

EXAMPLE: Snubber (or sway strut) not installed Upon completion of the excepted items, the OC Inspector shall complete the inspections as required.

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BROWN & RCOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) QI-QAP-11.1-20 7 8-28-80 3 of 7 A. Support Number Identification: Verify support number correct and traceable to documentation as per Appendix 6.9F, Section 3.2, paragraphs l'and 2.

B. Size, Configuration, Tolerance / Drawing: Verify in accord-ance with drawing and Appendix 6.9F, including Supplement

6. 9 F-I .

C. Material Correct / Drawing: Verify correct material and traceability as required by Appendix 6.9F, Section 3.2, and Supplement 6.9D-II utilizing the Bill of Materials.

D. Fastners Correct and Complete: Verify that fastners exclud-ing Hilti Bolts are as per Appendix 6.9F, Section 3.2.7 and as required below:

1. Holes for nonfitted bolts shall be 1/16 inch.
2. Surfaces of bolted parts in contact with the bolt head and nut shall not have a slope of more than 1:20 with

( respect to a plane normal to the bolt axis. Where the slope is greeter than 1:20, beveled washers will be used.

3. All bolts shall be torqued to the required torque specifications given in the design specification. When

, torquing cannot be accomplished, the turn-of-the-nut-i method of fastener tensioning may be used with the pennission of the Owner.

4. All bolted connections will have at least one full thread extending beyond the face of the nut, or as shown on the design drawing. Bolt-nut fit shall be of a Class 2 fit.

(A Class 2 ff.t will allow smooth thread engagement without excessive friction or looseness of fit. Bolts with excessive looseness or tightness should be checked for acceptable tolerance in accordance with ANSI Bl.1-74.)

E. Location and Elevation / Drawing: Verify that location, orientation, and elevation are as per the drawing and as otherwise required by Appendix 6.9F.

NOTE 1: For 2 inch 'and under supports, the length of the indivi-dual support members is a maximum length. The members may be shortened as required to achieve pipe fit. Any length up to the maximum is acceptable.

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i BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) OI-0AP-11.1-20 7 8-28-80 4 of 7 NOTE 2: Span lengths shall be as per the ISO. When using tolerances as given in Supplement 6.9F-I, the maximum span length cannot be violated.

NOTE 3: Horizontal elevations shall be as per the drawing with applicable tolerances taken to consideration. Vertical elevations shall be as per the drawing and applicable tolerances with the following exception: when it is necessary to relocate a support on a vertical run of pipe, the relocation shall be accomplished such that the maximum span length is not violated, e.g. drawing location per ISO is secondary to span length.

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% F. Spring Can Stops Installed: Verify that spring can stops have been installed (Ref: 6.9F,3.2.6).

G. Spherical Bearings: Verify that spherical bearings and sway struts have been acceptably installed as per the requirements of Appendix 6.9F and as noted below:

NOTE 4: The sway strut unit is composed of the pipe clamp

(- assembly, Figure 11.1-20-1, the rear bracket assembly, Figure 11.1-20-2, and the sway strut assembly Figure 11.1-20-3.

NOTE 5: The pipe clamp assembly, Figure 11.1-20-1, consists of the pipe clamp halves, clamp bolts, spacer and nuts, a threaded or non-threaded high strength pin, two flat

' washers and either high-strength nuts or cotter pins, depending on vendor.

When assembled for inspection, the washers nust be installed between the clamp halves with the high-strength pin. Under no circumstances shall the clamp bolts be interchanged with the high-strength pin.

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NOTE 6: The rear bracket assembly consists of the rear bracket, 2 flat washers, and a high-strength pin held in posi-tion by cotter pins or split snap rings (Figure 11.1-20-2). When inspecting this assembly, verify the washers are installed on the inside of the bracket arms, one on either side of the sway strut spherical bearing. If cotter pins are used, they should be the maximum size the hole will accommodate and shall be full opened. If split snap rings are installed, they should be examined to verify the rings are not broken, j sprung or deformed. 1

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BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) OI-0AP-11.1-20 7 8-28-80 5 of 7 NOTE 7 : The sway strut consists of the strut body, adjustable spherical bearing ends, and one or more jamb nuts '(see Figure 11.1-20-3). The spherical bearing should be tightly staked in the adjustable ends and shall have a washer on'either side when installed. The sway strut should have the correct adjustment as per the design drawing and the jamb nut (s) shall be tight. If engage-ment sight holes are present on the strut body, thread engagement shall be verified.

NOTE 8: When correctly installed, the sway strut unit will allow misalignment up to 6* from sway strut centerline (12* included angle). The 6* of freedom is given by the spherical bearings and their relationship to the flat washers. Normally the thicker flat washers are installed on the clamp end, the thinner washers on the rear bracket end.

H. All Welds / Drawings and WPS (VT): Perform final examination of the overall assembly as required by OI-0AP-11.1-26,

/ NDEP-200, Appendices 6.90 and F. Verify that the Weld Filler Material, and WPSs used were correct and acceptable and that all welders

  • were qualified for the work performed.

I. Nondestructive Examination: Perform and inspect as required by the documentation (

Reference:

Supplement 6.9D-II, and the NDEP Manual.)

J. In-process Inspections: If in-process welding inspections are required by the documentation, inspect as per Appendix 6.90 and the drawing.

3.2 SEISMIC LIMTER (SNUBBER) INSPECTION NOTE: Inspection of seismic limiters shall be performed in accordance with hold points established in the Opera-tion Traveler, Hanger Package or on a checklist (See Example Figure 11.1-20-6) and shall be inspected as required below:

3.2.1 Seismic Limiters Seismic limiters will be installed as shown on the drawing using the inspection criteria set forth in this procedure.

Seismic limiters must never be used as a welding ground, nor shall they be sandblasted or painted. At no time shall installed arrestors be used as steps or hand holds.

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BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) QI-0AP-11.1-20 7 8-28-80 6 of 7 The following are inspection criteria to be used when completing steps 1 through 9 on the traveler or checklist.

A. Support I.D.: Support number identification shall be com-pared to the tag number on the seismic limiter to the number given on the drawing.

B. Location / Elevation: Verify in accordance with the design drawing and Appendix 6.9F-I.

C. Welding and Configuration: Verify in accordance with the design drawing, WPS, and Appendix 6.90.

NOTE 1
Where required, a extension piece may be socket welded to the forward adapter and transition tube, but align-ment should be maintained as close as possible to one degree.

Extension pieces, where required, should be cut so that a minimtsn of 1/16 inch gap exists between the pipe and

( bottom of the transition tube and forward adapter as well as allowing a minimum of 1/2 inch engagement, as shown below:

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NFS p.F I_ t Hi 5-NOTE 2: If welding is done on an extension piece while attached to a seismic limiter, the weld ground strap should not be positioned that would allow current to pass through the seismic limiter.

D. Spherical Bearings: Verify using the following criteria:

1. The spherical bearings are designed to move 6' within their sockets (see Figures 11.1-20-4 and 5). Special flat washers are always installed on the inside of the

BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) QI-0AP-11.1-20 7 8-28-80 7 of 7 clamp, one between each clamp half and the spherical

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bearing. The washers allow the seismic limiter to have 6' of misalignment. In no case should this tolerance be exceeded.

2. Spherical bearings are staked in the attachment end.

This should be checked to verify that the bearing is tight in its housing.

E. Cold Setting: Verify cold setting by having the craft person remove load pin and cycling the seismic-limiter through its full range of travel.

F. Snubber Cycle: Verify by having the craft person remove load pin and cycling the seismic limiter through its full range of travel.

NOTE 3: The force required to extend or retract the limiter support cylinder (Figure 11.1-20 4) should not exceed 1% of the rated load. The load should be applied in a steady manner. If the arrestor support cylinder moves

( easily, does not move, or rotates, internal damage may exist; the owner must be notified.

G. Fasteners : Verify using the following criteria:

1. All cotter pins and snap rings are installed and secure.

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2. If load-bearing bolts are used, at no time should the thread be in the load-bearing portion of the bolt.
3. Attach forward bracket or transition tube-extension piece forward adapter assmbly to the arrestor with machine screws or bolts as provided. Torque fasteners as follows:

Arrestor Size Toroue Required 1/4 22 1 in-lb 1/2 22 : 2 in-lb i 1 45 5 in-lb 10 in-lb 3 120 10 440 20 in-lb Safety-wire bolts with 0.040" stainless steel wire.

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BROWN & ROOT, INC. ISSUE CPSES NUMBER REVISION DATE PAGE JOB 35-1195 (Supplement to 6.9F-V) OI-0AP-11.1-20 7 8-28-80 5 of 5 FIGURE 11.1-20-6 Snubber Inspection Checklist Support No. Line No.

Revision Insoection Verifications Insp. Initials

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1. Support Number Identification
2. Size, Configuration, Tolerance / Drawing
3. Material Correct / Drawing 4 Location and Elevation / Drawing
5. Spring Can Stops Installed
6. Spherical Bearings
7. All Welds / Drawings and WPS (VT)
8. Nondestructive Examination
9. In-process Inspections QC Inspector Level Date

Reference:

QI-QAP-11.1-20, Rev. 4

  • Inspection initials indicate a satisfactory inspection.

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