Our Backflow Prevention Policy requires the installation of an approved backflow prevention containment device at the boundary of every water service connection to a property, including fire services.

This 1/2 in dual check valve with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. This valve is designed for continuous pressure non-health hazard applications in smaller supply lines such as laboratory equipment, processing tanks, sterilizers, dairy equipment and specifically for boiler feed lines. It consists of a brass body with stainless steel internal parts, integral strainer, two durable tight seating rubber check valves and NPT female inlet and outlet connections.

In the spirit of reconciliation, Water Corporation acknowledges the Traditional Custodians of Country throughout WA and their enduring connections to land, sea and community. We pay our respects to Elders past and present, and extend that respect to all Aboriginal and Torres Strait Islander peoples today.

This 1/2 in dual check valve with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. This valve is designed for continuous pressure non-health hazard applications in smaller supply lines such as laboratory equipment, processing tanks, sterilizers, dairy equipment and specifically for boiler feed lines. It consists of a brass body with stainless steel internal parts, integral strainer, two durable tight seating rubber check valves and NPT female inlet and outlet connections.