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- Series LF919 Lead Free Reduced Pressure Zone Assemblies prevent the reverse flow of contaminated water from entering into the potable water supply due to back siphon age and or backpressure. It consists of a Lead Free cast copper silicon alloy body construction, two poppet style check valves and replaceable check seats, with an intermediate relief valve. Series LF919's compact modular design facilitates easy maintenance and assembly access. It is ideal for protection at health hazard cross-connections or for containment at the service line entrance. Check with local water authorities for installation requirements.
WATTS® Double Check Valve Assembly, Series: LF919, 3/4 in Nominal, NPT, 175 psi, 33 to 180 deg F, Quarter-Turn Resilient Seated Ball Valve Ball Valve/Gate Valve, Reduced Pressure Zone Backflow, Full Port, Cast Copper Silicon Alloy Body, 12-1/8 in L x 7-7/16 in H, Domestic
- Separate access covers for the check valves and relief valve for easy of maintenance
- Top entry all check internals easily accessible
- All rubber elastomers of chloramine resistant material
- Check valve poppet assemblies are fully guided by innovative plastic seat guide
- Replaceable push-in check valve and relief valve seat eliminates threads from the water way
- EZ twist relief valve cover with quarter-turn locking joint captures the spring load during repair to facilitate disassembly
- Innovative check valve plastic cover bushing provides trouble free guiding of the check valve poppet
- Bottom mounted relief valve provides reduced installation clearances
- Compact space saving design
- Top mounted test cocks for easy in testing and reduced installation clearances
- Shut-off valve with tee handle
- (4) Resilient Seated Test Cocks and Air Gap Drain Fitting
- Backflow TypeReduced Pressure ZoneBall Valve / Gate Valve TypeQuarter-Turn Resilient Seated Ball ValveBody MaterialCast Copper Silicon AlloyDomestic / ImportDomesticEnd StyleNPTNominal Size3/4 inDimensions12-1/8 in L x 7-7/16 in HManufacturerWatts Water TechnologiesManufacturer #0065372Port TypeFullPressure Rating175 psiSeriesLF919Temperature Rating33 to 180 degF