ASSE 1048|AWWA Class D/C510|CSA B64.5|cULus Listed|FM Approved|UL Listed

• Stainless steel for corrosion resistance Designed for minimum head loss Outside screw and yoke shut-offs Torsion spring check valve provides low head loss Short lay length is ideally suited for retrofit installations Stainless steel body is half the weight of competitive designs reducing installation and shipping cost Stainless steel construction provides long-term corrosion protection and maximum strength Single top access cover with two bolt grooved-style coupling for easy maintenance Thermoplastic and stainless steel check valves for trouble-free operation Compact construction allows for smaller vaults and enclosures Detects underground leaks and unauthorized water use

This double check detector assembly backflow preventer, 4 in, prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It consists of a compact construction and short lay length, ideal for retrofit installations. It features a lightweight stainless steel body, thermoplastic and stainless steel check valves and low head loss. It has a cubic foot meter. It can be installed in a vertical or horizontal flow-up position. It is designed for installation on applications identified by local authorities as non-health hazard, such as on fire protection systems.