Double Check Backflow Detector, 4 in, Groove, 304/304L Stainless Steel

This Colt™ 4 in double check detector 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 non-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 sleeve for easy maintenance is approved for horizontal or vertical installation in accordance with the direction of the flow arrow on the assembly. It consists of a stainless steel body, tri-link check valves, grooved gear operated butterfly valves with tamper switch and four test cocks. It comes furnished with a cubic feet per minute meter to detect underground leaks and unauthorized water use.

UL/FM Grooved Gear Operated Butterfly Valves With Tamper Switch, CFM Meter, (2) Independently Operating Tri-Link Check Valves, (2) Shut-Off Valves and (4) Test Cocks

1 Year Limited

Approved By The Foundation For Cross-Connection Control And Hydraulic Research At The University Of Southern California|ASSE 1048|AWWA C551-92|cCSAus B64.5|cULus Listed|FM Approved | PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.

Fire Protection and Non-Health Hazard