The Series 765 Pressure Vacuum Breakers are used to protect against health hazard and non-health hazard back siphon-age conditions in industrial plants, cooling towers laboratories, laundries, swimming pools and lawn sprinkler systems. The lightweight poppet seals air opening under minimum flow conditions and the engineered plastic bonnet protects the valve body from freeze damage. End Connections - NPT ANSI/ASME B1.20.1.
The VPC PK1390 is a replacement self-draining vacuum breaker for frost free hydrants with FINE THREADS (will not connect to hose threaded faucet). A must on all outdoor systems. It can easily be adapted with new installs or existing systems.
The 3/4 in. 720 Amp Pressure Vacuum Breaker Assembly protects against backsiphonage in high health hazard, non-potable residential and commercial irrigation applications. The 720 Amp includes an approved check valve, vacuum relief, 2 test cocks and inlet and outlet full port resilient seated shut-off valves. It also features a maximum pressure of 150 psi and a temperature range of 33 degree F to 110 degree F. The corrosion-resistant internal parts and all bronze bonnet and body construction provides added strength and protection against light freezes, while the test cocks on center line of valve allow for installation versatility.
This 3/4 inch anti-siphon pressure vacuum breaker backflow preventer prevents 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, tee handle shutoff, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, and test cocks for winterization draining. It is ideal in health hazard continuous pressure applications such as irrigation systems and industrial process water systems where the water enters the equipment at or below its flood rim. The maximum pressure is 150 psi (10.3 bar) and the minimum pressure is 15 psi (55kPa).