info on heat resistant valves

I am looking for either a diaphram or ball type valves having metal sealing surfaces, so they could withstand overheating without leakage through the stem or throught the valve. The application is for flammible gas isolation / safety shutoff.

Does anyone have any recommendations for suppliers of such valves. The valves would be for 1 inch 150# piping and be hand actuated.

Don Shaffer Received on Wed Feb 07 13:08:00 2001