Document xzEMbDG0VdGv2bbm2G22VpYZg

'S' \ From WIN Date Subject: HTD Manufacturing . 3950 May 26, 1976 Asbestos Substitution RECEIVED MAY 2'0976 SAFETY- .dept. ' To: Messrs M.P. Whittington, 0-105 P. Weil, G-305 E. J. Flynn, 0-105 . T. Platt, U-101 A.D. Rossi, N--215 M. Leone, N-214 In compliance with the the following substitutes wi Division. - ao :os Substitution Program made by Heat Transfer Stress Relief: a) The 3/8 asbes' 'ng, ID-951934, which is current eincN^gted for insulating copper -- tubing a ing'&pwn the glass cloth blankets will be ciced with a 3/8 fiberglass braided sleeving* The new sleeving will be available . from CEsT under the identification numberID-951935, B^cS^e of the added cost of fiberglass ring, this material will no longer be Td for securing the insulating blankets, a substitute we will use 1.50" wide woven 'fiberglass tape, ID-952017. i . 1II J l-I . i FORM 3504V c) The asbestos cloth used for insulating will . be replaced with fiberglass cloth, ID-539716. The fiberglass cloth will be available from HS-5 storeroom. 3 PLAINTIFF'S |,/;VEXHIBIT|f/ I WH-8S1 ' 28001927 2**# Welding: . . At present the shop is using asbestos rope ID-316776 to prevent the welding flux from sliding away from the electrode while welding nozzles in hemip'nerical heads. in place of the asbestos we are no^N^widucting tests using rope like Kao-wool covered witfr^ta inless steel. It appears that this material wililoe an ade quate substitute. Gaskets: I have talked with engineering ab e Asbestos Substitute Program and brought t attention gasket material which contains stos. The two types of material are 5/16 br sbestos, ID-316794 and garlock. The braid asbj material is being used for packing in seal olers and the garlock gasket is being used in apparatus we manufacture except condensers As of this writing, gasket material, a, Pacor Inc. may h are looking int ive no substitute for garlock t)5>->braid asbestos packing, stable replacement which we ..............We now have iSR-^ocl^cme and a half (1 1/2) rolls of asbestos cloth and one (ly\^ll of 3/8 asbestos sleeving, it is our inten tion to depleat .this inventory. All material used after this inventory depleacion period will be the asbestos free substitutes for mentionef^fen this letter. /jl j)- E.J. McCoy III Mfg. Engineer