Testable Reduced Pressure Zone Backflow Preventer - NA Market

Testable Reduced Pressure Zone Backflow Preventer - NA Market

The backflow preventer can be used in all plumbing systems where there is danger of the potable water supply system being contaminated. It prevents an accidental reduction in the pressure in the distribution system from causing backflow from contaminated water in user installations.

The 574 series RPZ backflow preventer is ICC-ES certified to ASSE 1013, CSA B64.4, AWWA C511, NSF/ANSI/CAN 61 Drinking Water System Components-Health Effects, and NSF/ANSI/CAN 372 low lead laws. It meets codes IPC, IRC, NPC and UPC for use in accordance with the US and Canadian plumbing codes. The 574 comes complete with discharge air gap, all test ports are on top for easy access inspite of how the valve is mounted, union body connections make service and repair simple and fast, and a simple short list of parts is all that is required to do a rebuild.

Also available in combination with AutoFill™ pre-adjustable automatic filling valves, 1/2", 3/4" and 1" sizes.

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規格

Testable reduced pressure zone backflow preventer. ASSE 1013, CSA B4.4, AWWA C511, NSF/ANSI/CAN 61, and NSF/ANSI/CAN 372 certified by ICC-ES. Threaded NPT female or press connections from ½ inch to 2 inch. DZR low-lead brass body (EN 1982 CB752S) and access cover (EN 12165 CW724R) ( less than 0.25 percent lead content), meets requirements of IPC, IRC, UPC, NPC and NSF/ANSI/CAN 372-2011 certified by ICC-ES. PSU-POM check valves, stainless steel springs, stainless steel access cover bolts and peroxide-cured EPDM diaphragm and seals. Maximum working pressure 150 psi (10 bar). Maximum working temperature 150 degrees F (65 degrees C). Provided with inlet and outlet isolation ball valves, bronze body, 304 stainless steel ball, steel handle and nut, PTFE seat ring and packing gland, brass gland nut and low-lead brass stem. Complete with upstream, intermediate and downstream pressure zone top-mounted test ports and PVC discharge air gap assembly with collar fitting to discharge pipe (separately sourced).

技術規格