Lube for propane connection valve?

[kgruber]

I'm using a large propane torch on the asphalt on my taxiway.

The torch hasn't been used in years and the ball check valve going into the main propane tank is needing to be freed up and lubed. I am thinking just LPS2. But I don't want any explosions or whatever.

Is there something better, safer?

 

[Clark1961]

There are lubricants made for gas valves. A good plumbing supply house will have some or bum a little from your plumber.

That said, there's nothing special about propane that demands a particular lubricant. It will be compatible with LPS2.

Other thing, what are you calling a "ball check valve"? got a picture?