Air release valves, or air relief valve function to release air pockets that collect at each high point of a full pressured pipeline. An air release valve can open against internal pressure, because the internal lever mechanism multiplies the float force to be greater than the internal pressure.

• Certificate: UL Listed / FM Approved
• Standard: UL 2573, NFPA 20, AWWA C512
• Connection: Threaded, NPT / BSPT / BSPP
• Feature: Small orifice, vent air only
• Temperature: Max 82°C, water
• W. pressure: 300 / 250 / 200 psi
• Surface: FBE coating as AWWA C550