Male to Female 3/4" NPT Check Valves
Small particles of solid materials often flow through the line along with the gas. They sometimes stick and build-up in valves with flat seats, making a tight seal impossible.
Here’s why Rexarc valves give added protection: The shape of the rounded Rexarc inner valve tends to be self-cleaning so particles are less likely to be trapped.
You save money too, with Rexarc Valves. The armored inner valve is replaceable. This means you no longer have to put in an entirely new valve after a severe flashback. In many cases a simple cleaning is all that’s necessary.