ML20215J975

Change Notice 001 to Rev 0 to Quality Instruction QI-075, Reinsp of Piping Bend Fabrication

ML20215J975
Person / Time
Site:	Comanche Peak
Issue date:	08/08/1986
From:	Patterson A, Zill R EVALUATION RESEARCH CORP.
To:
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References
QI-075-01, QI-75-1, NUDOCS 8610270284
Download: ML20215J975 (6)

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EVALUATION RESEARCH CORPORATION 1

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COMANCHE PEAK RESPONSE TE QUALITT INSTRUCTION FOR ISSUE-SPECIFIC ACTION PLAN ISAP VII.c CHANGE NOTICE: 001 i

INSTRUCTION NO.: QI-075 REVISION: 0 EFFECTIVE DATE:

08/08/86 REINSPECTION OF PIPING BEND FABRICATION Prepared by:

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Approved-by:

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7/7/#6 Issue C $ dinator Approved by:

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I-7-Id On-Sit G A esentative Approved by:

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Changs Notico 001 QI-075 i

Rev. O Page 2 of 3 ITEM CHANGE TO QUALITY INSTRUCTION 1

Page 3, Section 5.0, after Item 5.3 Add:

5.4 Pipe Bend Wall Thickness Verify that minimum pipe bend wall thickness meets the minimum acceptable wall thickness as indicated by the QA/QC Discipline Engineer on the " Pipe Bend Wall Thickness Record", Attachment 6.6.

The Discipline Engineer shall indicate on the " Pipe Bend Wall Thickness Record" the location (s) on the bend where Ultrasonic Testing (UT) will be performed.

NOTE: The pipe bend wall thickness-will be determined by Ultrasonic Testing (UT) performed by B&R in ;

accordance with B&R Procedure QI-QAP-10.2-4A, " Ultrasonic Digital-l Thickness Measurements".

The area of the bend where the UT will be performed shall be free of dirt, dust, debris, or paint. An CPRT QA/QC Inspector shall accompany the B&R inspector for reinspection to verify:

1, the location on the bend where thickness measurement is taken.

2. the location for UT is free of dirt, dust, debris or paint.

f and

3. to verify and record the pipe bend wall thickness measurement on the " Pipe Bend Wall Thickness Record" form.

2 After Attachment 6.5 e

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Add: Attachment 6.6, " Pipe Bend Wall l

Thickness Record" l

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. gj Ch:ngs Notica 001 QI-075 Rev. O Page 3 of 3 ITEM CHANGE TO QUALITY INSTRUCTION 3

After Attachment 6.6 Add: Attachment 6.7, " Minimum Pipe Bend Wall Thfekness Requirement" 4

After Attribute 3 of Attachment 6.1 Add:

4.

Pipe Bend Wall Thickness 4

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Chtngs Nstico 001.

.'.6 QI-075 Rev. O Page 1 of 1 PIPE BEND WALL THICKNESS RECORD Verification Package No.

I-M-PBFA-Bend Identification:

Bend i 1.

a. Pipe Size and Schedule

b. Material

c. Mininus Pipe Bend Wall Thickness Required inch

d. Location (s) on bend where UT will be performed 7

O 4

l Discipline Engineer initial /Date 2.

Measured Pipe Bend Wall Thickness:

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inch, at Location 1, t

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inch Location 2, t

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2 inch Location 3, t

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3 O

Inspector Signature /Date

Chengs Notico 001 Attcchment 6.7 QI-075 Rev. O Page 1 of 1 k

MINIMUM PIPE BEND WALL THICKNESS REQUIREMFNT Table B below provides minimum acceptance pipe bend wall thickness values for common small bore piping.

Table B Nominal Pipe Pipe Nominal Pipe Wall Minimus Pipe Bend Dia.D (in)

Schedule Thickness, T,(in)

Wall Thickness Acceptable After Bending (in)

(0.875 x T,)

40,40S 0.109 0.095 1/2 80,80S 0.147 0.129 160 0.187 0.164 I

40,40S 0.113 0.099 3/4 80,805 0.154 0.135 160 0.219 0.192 40,405 0.133 0.116 1

80,80S 0.179 0.157 160 0.250 0.219 40,405 0.145 0.127 1 1/2 80.808 0.200 0.175 160 0.281 0.246 40,408 0.154 0.135 2

.80,80S 0.218 0.191 160 0.344 0.301

Change Notice 001 COMANCHE PEAK RESPONSE TEAM.1 CHECILIST QI-075 O

Rev. O POPULATION DESC VERIFICATION PKG NO.

l PAGE 1 0F PIPING BEND FABRICATION 1-M-PBFA QUALITY INSTRUCTION x REINSPECTION UNIT 1 EQUIPMENT MARK / TAG NO.

DOCUMENTATION REVIEW C UNIT 2 CONMON VERIFICATION ACCEPT REJECT DATE

1. Radius

2. Ovality l

3. Buckling / Flattening b

4. Pipe Bend Wall Thickness a

l PREPARED BY:

APPROVED BY:

DISCIPLINE ENGR.

DATE LEAD DISCIPLINE ENGR.

DATE LN5PELar.u BY:

APPROVED BY:

iN5FEGIUR DATE LEAD INSPECTOR DATE CPP-007.IA, Revision 0 m.

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