The Double Check Type Backflow Preventer shall be certified to NSF/ANSI/CAN 61, shall be ASSE Listed 1015, rated to 180°F, and supplied with full port ball valves. The main body and access cover shall be low lead bronze (ASTM B 584), the seat ring and all internal polymers shall be Noryl™ and the seat disc elastomers shall be silicone. The first and second check shall be located at an angle and accessible for maintenance from the top of the device, without removing the device from the line. The checks shall share a single access cover and test cocks shall be accessible from the top of the device. The Double Check Type Backflow Preventer shall be a ZURN WILKINS Model 950XL3.
Compliance:
Massachusetts Approved, Meets the requirements of NSF/ANSI/CAN 61 and 372**(Less than 0.25% Weighted Average Lead Content), ASSE® Listed 1015, AWWA Compliant C510, CSA® Certified B64.5, cUPC®, C-UL® Classified, Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
Features:
Keywords: Thermal expansion tank, pressure relief valves, Double Check Backflow Preventer, backsiphonage, Cross Connection Control, double check valve backflow preventer, shut-off valves, water thermal expansion, Double Check Backflow Assembly, cartridge assembly, inlet shut-off valve, EZSwap, shock arresters