ML20210E733

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Submits Results of 840403-05 Insp of Rectangular Tube Steel W/Perimeter Less than 14 Inches Used for Safety Class I Sys, in Response to P Morrill 840402 Request.Data Re Tube Steel Measurements Encl
ML20210E733
Person / Time
Site: Diablo Canyon, 05000000
Issue date: 04/19/1984
From: Wade W
EG&G, INC.
To: Kirsch D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML16341D666 List: ... further results
References
FOIA-84-744 WOW:84-18, NUDOCS 8603280136
Download: ML20210E733 (6)
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+Q EGsG ENERGYMEASUREMENTS GROUP PM m-99 w.c.a. y.ss .a y San Rasnen Operations 28o1 OLD CROW CANYON ROAD. SAN RAMON. CA = TEL(415)838-3200 e MAIL: BOX 204, SAN RAMON. CA 94583 April 19, 1984 WOW: 84-18 Mr. Dennis Kirsh -

U.S. Nuclear Regulatory Commission '

1450 Maria Lane, Suite 210 Walnut Creek, California 94596 [-

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Subject:

DIABLO CANYON' TUBE STEEL DESIGN VERIFICATION

References:

1) Telecon; P. Morrill to W. Wade on 4/2/84 .
2) PG&E letter No. DCL-84-083, from J. O. Schuyler to J. B. Martin dated 2/29/84 In response to Phil Morrill's request (Reference 1) the LLNL/EG&G Design Verification Program Inspectors devoted April 3, 4, and 5 to the inspection of rectangular tube steel with a perimeter < 14 inches that has been used for Safety Class I systems. The objective wa~s to examine 100-200 pieces to verify the outsid'e radius of curvature to be > 2 times the tube wall thick-ness. The work was cnmpleted and the data transmitted verbally on April 6, 1984. In light of additional information (provided by John Burdoin at the site, [ Reference 2]) regarding the intended use for the data, it was decided to also determine the effective throat of all flare-bevel-welds to the tubes. The results of the inspections are shown on Attachment I and sumarized below.

Method of Measurement Although the licensee fabricated gaging templates that could have been used, more useful dimensional data was obtainel by psing a bevel protractor with a pivoting scale or two scales positioned as shown in Figure 1. -All three methods were used.

Inspection Results i

l The inspections were performed independently by three individuals in the contair. ment and auxiliary buildings of both units. It appears that the material has been used primarily to support small bore piping. In some instances, it was not possible to. verify all dimensions, including the wall thickness and the radius of curvature. As a consequence, a few pieces were

deleted from the data for this report when the radius of curvature could i

not be measured.

In all,129 pieces of tubing in 66 assemblies were examined and measured.

i Only 34 (26%) of these had an acceptable radius of curvature of at least twice the wall thickness (2t) and 61 (48%) had a wall thickness no greater than 1-1/2t. The rest (34 or 26%) were in between. All flare-bevel welds

' examined were at least flush with the tube surface. Canadian tube steel which was suspected to be sub . standard (identified by P.O. #11727 marked on the tubing) was found in only two assemblies. ,

g 8603280136 860123 PDR FOIA / ,

DEVINE84-744 PDR t)5Mf/6/ /C

e Mr. Dennis Kirsh April 19, 1984 Page 2 WA L.L TH I CyMESS f % A Rami v s e s:-

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-R P l G U S LE_ i In the event some further clarification of the data is required please contact me at your convenience.

WALLACE 0. WADE MECHANICAL ENGINEERING DEPARTMENT WOW: cog .

Distribution: -

NRC LLNL -

EC&G/SRO C Morrill TTummings A. Debeling H. Canter R. White C. Morton T. Bishop J. Selan R. Pong J. Burdoin M. Eli .

___.___._.__.___._.____._____.________._j

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NOTES a) The smallest measured corner radius is: 1 ----- R > 2t 2 ----- R < 2t > 1-1/2t 3 ----- R < 1-1/2t b) All flare-bevel welds (F.B.W.) examined were at least flush to _ the tube wall.

  • c) C = Containment building, A = Auxiliary building d) Items M02, J86, 93 & 94 from P.O. 111727 (Canadian tube steel) e) Item J55 as-built drawing shows 2" x 2" x 1/4" f) Item M16 is located at 99' elevation, 280' - 290' Azimuth ) and

= 10 ft from the reactor wall. The material is used'for horizontal bracing in the hanger assembly for the letdown clarifier CL-2.

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ATTACHPENT 1 TUBE STEEL MEASUREMENTS (b)

(c) NO. MEASURED (a) NO.

ITEM UNIT LOC DESCRIPTION PART NO. SIZE PCS. t' R RATE F.B.W.

M01 II A Pipe Hanger 949-271 3x3x3/8 2 11/32 5/8 2 10 (d) M02 II A Pipe Hanger 949-409 3x3x1/4 1 1/4 1/2 1 2 M03 II. A Pipe Hanger 949-409 2x2x1/4, 1 7/16 2 -

M04 II A Pipe Hanger 923d 3x3x1/4 1 1/4 1/2 1 2 MOS II A Pipe Hanger 923-64 3x3x1/4 1 1/4 9/16 1 2 M06 II A Pipe Hanger 949-64 2x2x1/4 3 -

3/8 3 8 M07 II A Pipe Hanger 949-349 3x3x1/4 1 -

7/16 2 -

M08 I -C Pipe Hanger 48-32 3x3x1/4 1 1/4 1/2 1 2 M09 I C Pipe Hanger 48-35 2x2x1/4 1 -

3/8 3 -

M10 I C Pipe Hanger 48-36 2x2x1/4 1 1/4 3/8 3 -

Mll I C Pipe Hanger 22-450SL -3x3x1/4 1 -

3/8 3 -

M12 I C Pipe Hanger 48-31 2x2x1/4- 1 1/4 3/8 3 4 M13 I C Pipe Hanger 22-5375L 3x3x1/4 1 -

3/8 3 2 M14 I C Pipe Hanger 2169-40 3x3x1/4 1 -

7/16 2 3 MIS ' I C Pipe Hanger 22-535SL 3x2x1/4 1 -

3/8 3 -

(f) M16 I C Pipe Hanger -

3x3x1/4 2 -

3/8 3 4 R17 I A Pipe Hanger 2161-52 3x3x1/4 2 1/4 1/2 1 6 R18 I A Pipe Hanger 2161-32 3x3x1/4 1 -

1/2 1 5 R19 I A Pipe Hanger -2161-32 3x2x1/4 1 -

3/8 3 -

R20 I A Pipe Hanger 2161-40 3x3x1/4 3 1/4 1/2 1 4

! R21 I A Pipe Hanger 2161-50 3x3x1/4 1 -

3/8 3 4 R22 I A Pipe' Hanger 2161 ,50 3x3x1/4 1 -

1/2 1 -

R23 I A Pipe Hanger 2161-56 3x3x1/4 1 1/4 15/32 2 -

R24 I A Pipe Hanger 2161-56 3x2x1/4 1 3/16 3/8 h 3 -

R25 I A Pipe Hanger. 2161-51 - 3x3x1/4 1 1/4 7/16 2 -

R26 I A Pipe Hanger 2161-54 3x3x1/4 1 1/4 7/16 2 -

R27 'I A Pipe Hanger 2161-54 2x2x1/4 1 1/4 @h 3 -

R28 I A Pipe Hanger 2161-53 3x3x1/4 1 1/4 3/8 3 -

R29 I A Pipe Hanger 2161-53 3x3x1/4 1 1/4 7/16 2 -

r (b)

(c) NO. MEASURED (a) NO.

ITEM UNIT LOC DESCRIPTION PART NO. SIZE PCS. t R RATE F.B.W.

J63 I A Pipe Hanger 2161-30 3x3x1/4 1 -

1/2 1 -

J64 I A Pipe Hanger. 2161-30 2x2x1/4 1 1/4 13/32 2 -

J65 I A Pipe Hanger 2161-45 3x3x1/4 1 -

3/8 /3 -

J66 I A Pipe Hanger 2161-45 2x2x1/4 1 -

5/16 3 -

J67 I A Pipe Hanger 2161-19 3x3x3/8 1 -

5/8 2 -

J68 I A Pipe Hanger 57-34 3x3x1/4 1 1/4 1/2 k -

J69 I A Pipe Restrnt 2161-46 2x2x1/4 1 1/4 1/4 3 2 J70 I A Pipe Hanger 57-29 3x3x1/4 1 -

13/32 2 2 J71 I A Pipe Hanger 57-29 2x2x1/4 1 1/4 5/16 3 -

J72 I A Pipe Restrnt 57-31 3x3x3/8 1 3/8 1/2 3 -

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J73 .I A Pipe Restrnt 57-25 3x3x1/4 1 1/4 1/2 1 2 J74 I A Pipe Restrnt 57-26 3x3x1/4 1 1/4 7/16 2 2 J75 I A Pipe Restrnt 57-26 2x2x1/4 1 1/4 3/8 3 2 J76 I A Pipe Restrnt 57-28 3x3x1/4 1 1/4 3/8 3 -

J77 I A Pipe Restrnt 555-22R 3x3x3/8 1 3/8 7/16 3 -

J78 I A Pipe Restrnt 555 44R 3x3x1/4 2 1/4 7/16 2 4 J79 I A Pipe Restrnt 555-125R 3x2x1/4 1 1/4 7/16 2 -

J80 , I A Pipe Restrnt 555-125R 3x2x1/2 2 1/2 9/16 3 4 J81 I A Pipe Restrnt 55S-125R 3x3x3/8 2 3/8 5/8 2 -

J82 I A Pipe Restrnt 55S-125R 3x2x1/4 1 1/4 3/8 3 -

J83 I A Pipe Restrnt 555-124R 3x3x1/4 1 1/4 7/16 2 3 J84 I A Pipe Restrnt 555-124R 3x3x1/4 7 ~1/4 3/8 3 10 J85 I A Pipe Hanger 73-130 4x2x1/4 1 1/4 7/16 2 2 (d) J86 I A Pipe Hanger 73-22 3x3x3/8 2 3/8 1/2 3 2 J87 I A Pipe Hanger 73-22 3x3x3/8 3 1/2 3 -

J88 I A Pipe Hanger 73-144 3x2x1/4 1 1/4 3/8 3 2 J89 I A Pipe Hanger 73-144 3x3x1/4 1 -

3/8 3 -

J90 I A Pipe Hanger 83-44 3x3x1/4 1 1/4 1/2 1 -

J91 I A Pipe Hanger 83-44' 2x2x1/4 1 1/4 7/16 2 -

J92 I A Pipe Hanger 73-142 3x2x1/4 1 1/4 3/8 3 2 (d) 93 -

Stock 20 ft lengths 3x3x3/8 2 3/8 15/32 2 -

(d) 94 -

Stock 20 ft lengths 3x3x3/8 5 3/8 1/2 3 -

< ,~ .  :

.m s

(b)

.(c) NO. MEASURED (a) NO. -

ITEM UNIT LOC DESCRIPTION 'PART NO. SIZE PCS. t R RATE F.B.W.

R30 I A Pipe Hanger 2x2x1/4 1 1/4 1/2kh-/8-21f1-53 R31 I A Pipe Harger NM64-6& 2x2x1/4 1

  1. 46ff /2- -

R32 I A Pipe Hanger 54-55 3x3x1/41 2 1/4 1/2- 1 -2 R33 I _A Pipe Hanger 54-55 2x2x1/4 /f -

1/2 1~ -

R34 I A Pipe Panger 54-55 2x2x1/4 1 -

3/8 3 -

R35 I A Pipe Hanger 2161-12 3x2x1/4 1 -

3/8 3 -9

-R36 I A Pipe Hanger 555/68R 3x3x1/4 1 1/4 3/8 3 4 R37 I A' Pipe Hanger 55s/123R '3x3x1/4 .1 -

1/2.. 1 -

R38 I A Pipe Hanger 55s/67R 3x3x1/4 1 7/16 '2_ 2 R39 I A Pipe Hanger 555/35R 3x2x3/16 2 1/2 l' -

R40 1 A Pipe Hanger 54/63 3x3x1/4 1 -

3/8 /$ -

~

R41 'I A Pipe Hanger 54/6 3x3x3/8 1 3/8 5/8 2 3 R42 I A Pipe Hanger 54/25 2x3x1/4 1 -

1/2 1 -

R43 I A Pipe Hanger - 54/60 3x3x1/4 1 1/4 1/2 1 -

'R44 .I -A Pipe Hanger 54/59 3x3x1/4 1 1/4 3/8 3 -

R45 I A Pipe Hanger 54/20- 3x3x1/4 _1 1/4 1/2 1 .3 R46 I A Pipe Hanger 54/20 2x2x1/4 1 1/4 3/8 3 -

R47 I A Pipe Hanger 83/31 3x3x3/8 1 3/8 3/4 1. 2 R48 - I A Pipe Hanger 73-66 2x2x1/4 1 1/4 3/8 3 2 R49 I A Pipe Hanger 73-132 2x2x1/4 1 1/4 1/2 1 2

. R50 I A Pipe Hanger 83-25 2x2x1/4 1 ~1/4 3/8 3 2 R51 I A Pipe Hanger 83-25 3x3x1/4 1 1/4 1/2 1 -

RS2 I A Pipe Hanger 83-19 25x25xk 1 1/4 3/8 3 4 R53 I A Pipe Hanger 83-3 2x2x1/4 1 1/4 3/8 3 2 R54 I A Pipe Hanger 83-3 3x3x1/4 1 -

7/16 2' -

-(e)J55 II A Pipe Hanger 923-65 2 x2bxk 1 1/4 1/2 1 4 J56  !! A Pipe Hanger 923-86 3x3x1/4 1 1/4 1/2 1 -

J57 I A Pipe Hanger 2161-37 3x3x1/4 4 1/4 13/32 2 -

J58- I A Pipe Hanger 2161,37 2x2x1/4 4 -

5/16 3 8 J59 I A Pipe Hanger 2161-37 3x3x1/4 1 1/4 3/8 3 2 J60 I A Pipe Hanger 2161-49 2x2x1/4 1 1/4 13/32 2 2 J61 I A Pipe Hanger 2161-44 3x3x1/4 1 1/4 7/16 2 -

J62 1. A Pipe Hanger 2161-39 3x3x1/4 1 1/4 15/32 2 4

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