This 2 1/2" 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. Extremely compact and lighter than traditional designs it is approved for horizontal Z pattern installation. 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 assembly without a meter consists of a stainless steel body with a quick access sleeve, torsion spring check valves, grooved gear operated butterfly valves with tamper switch, test cocks, corrosive resistant bottom mounted pressure relief valve.

• 304 (Schedule 40) stainless steel housing and sleeve
• UL and FM grooved gear operated butterfly valves with tamper switch
• Approved for horizontal Z pattern installation
• Replaceable check disc rubber
• Bottom mounted cast stainless steel relief valve
• Compact design allows small enclosures to be used
• Patented torsion spring check modules for ease of serviceability
• Groove couplings for ease of installation and pipe alignment
• The maximum working pressure is 175 psi (12.06 bar)