gas threaded or pipe threadings normally get a greyish colored thread sealer applied to them. or you can use yellow teflon tape rated for gas. DO NOT apply anything to a flare fitting. it interferes with the proper sealing of the flare. also the code inspector will not approve the white tefon tape on a gas fitting. (missed one and the inspector caught it). did a new gas heater installation in the house last year and did it exactly by code on my first one(minus that one fitting). jimt On Saturday, October 19, 2002, at 09:04 PM, Bill Davidson wrote: > I've got my new propane tank bolted to the under side... > And I have cut and bent and flared tubing ends... > ready to connect the tubing and tighten the flare nuts... > > but a question... > > I noticed that when I took the flare nuts apart there was a dark > colored > greasy like substance on the threads... and maybe on the flared ends > of the > tubing... Originally I though that might be old propane decomposed into > sludge... but now I'm wondering if the previous installer put a dab of > axel > grease on the flares.... perhaps it assures a better seal??? > Anybody know what that black stuff is on the flare ends? > > thanks, > > Bill Davidson > |
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