• Entire valve body and closure sleeve is manufactured from 304 (schedule 40) stainless steel Drip tight shutoff valves Furnished with a cubic feet per minute meter Bronze body nickel plated test cocks Bottom mounted stainless steel relief valve Compact design allows for small enclosures to be used Torsion spring check modules Groove couplings allow for easy installation and pipe alignment UL and FM outside stem and yoke resilient seated gate valves

This Maxim(TM) 4 inch reduced pressure detector backflow preventer assembly 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. It is ideal for protection at cross-connections identified as health hazards such as on fire sprinkler systems and from other contaminants found at the service line entrance. This compact modular design with a single access cover for easy maintenance consists of a stainless steel body with a quick access sleeve, torsion spring check valves, outside stem and yoke resilient seated gate valves, test cocks, and a corrosive resistant bottom mounted pressure relief valve. It comes furnished with a cubic feet per minute meter to detect underground leaks and unauthorized water use.