This Colt™ 4 IN double check 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 back pressure 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, outside stem and yoke resilient seated gate valves and four test cocks. It comes furnished with a gallon per minute meter to detect underground leaks and unauthorized water use.

Ames Double Check Detector Backflow Preventer Assembly, Sub Brand: Colt™, Item Name: Double Check Detector Backflow Preventer Assembly, Series/Model: C300, 4 X 4 IN Nominal, Flanged Joint Connection, 175 PSI, 33 - 140 DEG F, Stainless Steel Body, Rubber Seat, Industry Standards: Approved by the Foundation for Cross-Connection Control And Hydraulic Research at the University of Southern California (FCCCHR-US, ASSE 1048, cCSAus B64.5 Certified, cULus Listed, FM Approved, 33-3/4 IN Width, 18-1/2 IN Height, Lead Free: No, Additional Specifications: Body Pattern: Straight, Disc Material: Rubber, 180.000 LB Weight

• Stainless steel single housing with access sleeve
• Furnished with a gallon per minute meter
• Replaceable check disc rubber
• Compact construction allows for smaller vaults and enclosures
• Tri-link check valve assembly provides the lowest pressure loss
• Stainless steel construction provides long term corrosion protection and maximum strength

• Installation Instruction Name https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/AMESC200OSY4_Inst.pdf
• Specification Name https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/AMESC300OSY4_Spec.pdf