• Ductile iron body
• Health hazard application
• Outside stem and yoke resilient seated gate valves
• Approved vertical installation-flow up
• Field reversible relief valve
• Stainless steel springs
• EPDM elastomer discs
• Maximum working pressure 175 psi (12.1 bar)
• Temperature range is 32 degrees F to 140 degrees F (0 degrees C to 60 degrees C)

This 10 inch MasterSeries(R) configurable reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of high hazard (toxic) fluids found in the water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is used in industrial plants, hospitals, morgues, mortuaries, and chemical plants and is also used in irrigation systems, boiler feed, water lines and other health hazard installations requiring maximum protection. This assembly with outside stem and yoke shutoff valves consists of an epoxy coated ductile iron body, test cocks, spring loaded check valves and a pressure differential relief valve.