Sign In to View Pricing & Availability
- This 4 in lead free double check valve assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply due to back siphonage 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 hazard applications and from other contaminants found at the service line entrance. This compact and short lay length design with a single access cover for easy maintenance is approved with the arrow on the valve body pointing in the direction of the flow for horizontal, vertical and retrofit installations. This assembly consists of a lightweight stainless steel body, flanged inlet gate connection and grooved outlet gate connection, spring loaded cam-check valves, and test cocks.
WATTS® Double Check Valve Assembly, Series: 774, 4" Nominal, Flanged x Grooved, 175 psi, 110 deg F, Resilient Seated Shutoff Gate Valve Ball Valve/Gate Valve, Media: Water, 300 Stainless Steel Body, 40" W x 9" D, Domestic
- Stainless steel construction provides long term corrosion protection and maximum strength
- Single top access cover with two-bolt grooved style coupling for easy of maintenance
- Thermoplastic and stainless steel check valves for trouble free operation
- Compact construction allows for smaller vaults and enclosures
- Short lay length
- UL/FM Approved outside stem and yoke resilient seated gate valves
- The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
- (2) Independently Operating Torsion Spring Check Assemblies, (2) Resilient Seated Isolation Valves and (4) Ball Valve Type Test Cocks
- Ball Valve / Gate Valve TypeResilient Seated Shutoff Gate ValveBody Material300 Stainless SteelDomestic / ImportDomesticEnd StyleFlanged x GroovedNominal Size4 inDimensions40 in W x 9 in DManufacturerWatts Water TechnologiesManufacturer #0439508MediaWaterPressure Rating175 psiSeries774Temperature Rating110 deg F