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- Series 757 Double Check Valve Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. Series 757 may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. Series 757 consists of two independently operating check valves, two shutoff valves and four test cocks.
WATTS® Double Check Valve Assembly, Series: 757, 4 in Nominal, 175 psi, 33 to 140 deg F, Resilient Seated Gate Valve Ball Valve/Gate Valve, 304 Stainless Steel Body, 33-3/4 in L x 11-3/16 in W, Domestic
- Extremely compact design
- 70% lighter than traditional designs
- 304 (SCH 40/STD) stainless steel housing and sleeve
- Groove fittings allow integral pipeline adjustment
- Patented tri-link check provides lowest pressure loss
- Unmatched easy of serviceability
- Replaceable check disc rubber
- The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
- UL/FM outside stem and yoke resilient seated gate valve
- (2) Independent Tri-Link Check Modules Within a Single Housing, Sleeve Access Port, (4) Test Cocks and (2) Drip Tight Shut-Off Valves
- Ball Valve / Gate Valve TypeResilient Seated Gate ValveBody Material304 Stainless SteelDomestic / ImportDomesticNominal Size4 inDimensions33-3/4 in L x 11-3/16 in WManufacturerWatts Water TechnologiesManufacturer #0111512Pressure Rating175 psiSeries757Temperature Rating33 to 140 degF