Document gayYpe5dMjKDRmppLpe2EXe6e
THE BABCOCK & WILCOX COMPANY POWER GENERATION GROUP
From Oust.
F. W. MC COLLUM - ER - SAFETY
7-Q-12C
J. A. SWAINO - MATERIAL & INVENTORY CONTROL
NUCLEAR EQUIPMENT DIVISION
2-3-1B
Subj .
HAZARDOUS ASBESTOS MATERIAL
This letter to cover one customer end one suoject only.
&
File No. or Ref.
80S 663--6
Date APRIL 25, 1979
Attached per your request are copies of the letters describing Bfs use of asbestos materials in the NED areas (TH Lynch of Lynchburg and LE Spry of. Barberton).
If you have any questions or need additional.information, please contact me on extension 2343*
bjr Attachments
J. A. Swaino
SAFETY OFFICE APR 2 6 1r73
"Committed to Excellence "
THE B ADCOCK" & WILCOX COMPANY
POWER GENERATION GROUP
To 1
NUCLEAR EQUIPMENT DIVISION - BARBERTON
d. L. PENROD -:MATERIAL-.* INVENTORY CONTROL
F rom
T. H. LYNCH - RCS COMPONENTS - LYNCHBURG Cust.
Subj.
HAZARDOUS ASBESTOS MATERIAL
Thi la<tr to (n on* cvi'omif ana on* iwbt<> only
RECEIVED _ WS2 3W19 : M & 1C-NED
File Ho. or Ref.
8DS 663.J
Date APRIL 19, 1979
In response to your letter, J.L. Penrod to R.N. Tornow, dated February 27, 1979 titled "Haza'-dcus Asbestos Material", the following information was acquired to answer the questions regarding B&H's use of asbestos material in the 205 Standard Nuclear Steam System.
Flexitalic gaskets are handled during preparation for shop hydro testing (normally done once but may be performed more than- once.) Also miscellaneous handling in shops to nut gaskets in stock, to package, ship. Flexitalic gaskets are asbestos cere spiral wound with sta-nless steel.
Listed below are the uses of these gaskets:
Component
Typical Contracts SOS
n of Closures^^) # of Gaskets/Closure
Steam Generator:
Primary Manway Gaskets - 12 Manways - 2
Secondary Manway Gaskets - 12 Man'ways - 2
Primary Inspection Gaskets -12 Handholes - 2
Secondary Manway Gaskets - 42 Handholes - 6
Gaskets (Spares) - 2
Spares
1 1 1 1
Pressurizer:
Manway Gaskets - 3
Manway - 1
1
Core Flood Tank: Reactor Vessel:
Manway Gaskets - 5 CRDM Mech. Housing Gaskets
Manway - 1 Mech. Housi ngs - 89 max
1 2
(1) Number Per Unit
Asbestos lined gloves are in use by welders'Un a regular "basis.
THL:a1 a
^ , >/ 1 / -/) .
-----------^
T. H. Lynch
0001-'17
V
THE BABCOCK 4 WILCOX COMPANY POWER GENERATION GROUP
To | J. L. PENROD - MATERIAL & INVENTORY CONTROL
NUCLEAR EQUIPMENT DIVISION - BARBERTON 2-3-1B
From Cost.
L. E. SPRY - MANAGER, TECHNICAL SERVICES SECTION PRODUCT ENGINEERING, NEE (3-3-A7E) (EXT. 1959)
Subj.
ASBESTOS USE ON NAVY NUCLEAR CONTRACTS
This letter to cover ore customer ana ore suoject only.
RECEIVED MAR 2 8 1979... , M. & IC - NED
File No. or Ref.
BOS 66 3-6
Oate
MARCH 27, 1979
This confirms my answer Co your February 27 letter. Asbestos can not be eliminated from use on steam generator and pressurizer contracts because it is an inherent part of the gaskets qualified for use and required by contract to be used. Here is the further information you needed:
1. Spiral, wound Flexit3llic gaskets are used for hydrotest, and new ones are installed for shipment for all hand holes and manways on pressurizer and steam generators.
2. The asbestos is compressed between the Inconel spirals of the gaskets.
3. A total of four to six Flexitallic gaskets, on the average, are used on each pressurizer and steam generator.
A. No work is done on the material at B&W except for the required handling.
No new applications requiring asbestos use has occurred on these components within the past 20 years, to my knowledge. However, Mr. Dingman will alert his Materials Engineers to apprise us if any new applications are proposed. I do not believe there is any need for further controls.
A. T. Daspres B, M. Oingnan J. J. Eerraro E. X. Kaboth F. N. McCollum
A. Roscow J. A. Swaino R. N. Tornow A. G. Warth
`'Committed to Excellence''