ML20236F098
| ML20236F098 | |
| Person / Time | |
|---|---|
| Site: | 07109228 |
| Issue date: | 06/24/1998 |
| From: | Murray B GENERAL ELECTRIC CO. |
| To: | Chappell C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 9807020025 | |
| Download: ML20236F098 (2) | |
Text
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GE Nuclear Energy GeneralElectnc Company kollecitos Nuckar Center PO Box 460 ValkotosRoad Pleasanton. CA 94S66 June 24,1998 Mr. Cass R. Chappell, Section Chief Package Certification Section
' Spent Fuel Project Office Office of Nuclear Materials Safety and Safeguards U.S. Nuclear Regulatory Commission
= Washington, D.C. 20555-0001
References:
(1) Certificate of Compliance No. 9228, Docket 71-9228.
(2) Letter from B.M. Murray to C.R. Chappell dated May 15,1998.
(3) Fax sheet from Joe Tengco, Parker Seals, to Raul Pomares dated June 23,1998.
Dear Mr. Chappell:
This letter is in response to our telephone conversation of June 23,1998, wherein GE committed to -
- determine the manufacturer's recom' mended load required to assure sceling of the lid gasket of the
- Model 2000 shipping cask (Certificate of Compliance 9228). The gasket manufacturer, Parker e'
liannifin Corporation, has calculated the load required to fully compress the elastomeric material'of
)
the Parker Gask-O-Seal (compound No. E1823-75) between the lid and the body of the Model 2000 cask. The range of the unit load necessary to compress the seal compound used in the gasket is from ~ /
10 to 30 pounds per inch of seal. The maximum load required for compression of the Model 2000
/
gasket is 5,511 pounds (minimum to maximum range = 1,837 to 5,511 pounds). The GE calculated axial load for gasket seating (30,310 pounds) presented in the submittal (Ref. 2) was determined by following the guidelines of NUREG/CR-6007, which recommends the procedure of the ASME Code
- Section 111, Appendix E. The preload (36,800 pounds) equivalent to the specified bolt torque of 690 h/
foot-pounds is greater than either of the recommended sealing loads.
- A copy of the fax note from Parker presenting the load requirement is attached for reference. If you
. or your staff have any additional questions on this submittal, please contact me at (925) 862-4455.
Very truly yours, B. M. Murray -
)
'. Senior Licensing Engineer 1
...S U '}
.m Attachment 9907020025 990624 I
l' i-PDR ADOCK 07109229 C
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a' un-23-CB 0:3 : 5 C A Parker O-Seal 619 671 3202 p.01 Seals FAX COVER SHEET PARKER IIANNIFIN CORP.
O-SEAL DIVISION DATE:
JUNE 23.1998 7664 PANASONIC WAY SAN DIEGO, CA 92173, USA ATTN:
Raul Pomnres JOE TENGCO COMPANY NAME:
GE Vallecitos Product Design Engineer Phone: (619) 671-3225 FAX NUMBER:
925-862-4516 Fax:
(619) 671-3206 E-mail: Jtengco@ parker.com NUMBER OF PAGES INCLUDING THIS SHEET:
1
- Raul, The anticipated load for any given installation is not fixed but a range of values. The calculated load for your installation based on 10 -30 lbs/in load is 1837 -5511 lbs. If you have any questions, please feel free to contact rne.
Joe
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