Series 800M4 Pressure Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, tee handle or lever handle shutoffs, and test cocks for winterization draining. Series 800M4 is ideal in continuous pressure health hazard applications such as on irrigation systems and industrial process water systems. Maximum Pressure:150psi (10.3 bar), Minimum Pressure: 15psi (55kPa).
• Easy to maintain - no special tools required for servicing
• Test cocks positioned for easy testing and winterization
• Durable
• Easy to install
