Designed for installation on water lines to protect against both backsiphonage and backpressure of polluted water into the water supply. Assembly shall provide protection where a potential health hazard does not exists. (Medium Hazard)
The Double Check Valve Backflow Preventer shall be Australian Watermark Approved (AZ/NZS 2845.1), rated to 82°C and supplied with male pipe thread tailpieces. The main body shall be Bronze for sizes 3/4" & 1", and Nylon for sizes 1-1/4" to 2". The housing shall be reinforced Nylon and the seat disc elastomers shall be silicone (FDA Approved). The first and second checks shall be accessible for maintenance without removing the device from the line. The Double Check Valve Backflow Preventer shall be a WILKINS Model 350.
Please note: The pressure losses depicted in these tables are for the device only and not the complete assembly
Dimensional Data (mm) are Subject to Manufacturing Tolerances and Change Without Notice