Watts 957ZRPDA-OSY-CFM-FS 2 1/2 - Part of the 957RPDA Series

Watts 957ZRPDA-OSY-CFM-FS 2 1/2 - Part of the 957RPDA SeriesThis 2 1 2 inch reduced pressure detector backflow preventer assembly help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. Extremely compact and lighter than traditional designs it is approved for horizontal Z pattern installation. This assembly consists of a stainless steel body with a quick access sleeve, torsion spring check valves, resilient seated gate valves with outside stem and yoke,

This 4 inch reduced pressure detector assembly backflow preventer is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements

low flow by-pass valve with 25-75 psi adjustment range

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 1 1/4 IN Outlet Connection Type Female Threaded Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number 88004039 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series 009 Strainer Yes Technologies Flood Detection Tradename None Field Guide - Backflow Preventer Repair Parts 007 and 009

The minimum working pressure is 10 psi (69 kPa) and maximum working pressure is 150 psi (10 bar)

Reversible clamping collar and dual weepholes to handle seepage and perimeter drainage

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It consists of a bronze body construction with NPT threaded female inlet and threaded female outlet (drain) connection

The valve features bronze body construction

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 3/4 IN Outlet Connection Type Union Quick-Connect Outlet Thread Type Does Not Apply To Product Part Number 0125321 Series LFN45B Standard Reduced Pressure Setting-BAR 3

Miami-Dade & Florida approval (up to 20 ft²)

the material is 6 mil thick

ensuring clear flow and easier upkeep