Do propane tanks have air valves?

Do propane tanks have air valves?
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1 Answer

Answer :

It doesn't look like they do. When you search for "propane tanks" "air valves" (both quoted), the low number of results suggests they don't go together. A propane valve is slightly different than the valve for a standard air tank. They are known as OPD valves and will only allow gas to escape when the valve is connected to a hose or appliance. This is accomplished by a second internal vlave that must be depressed before gas will flow. Valves for non-flammable gas don't generally have this feature.
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