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- Series LF919 Reduced Pressure Zone Backflow Assemblies are designed to protect potable water supplies in accordance with national plumbing codes and water authority requirements. This series can be used in a variety of installations, including the prevention of health hazard cross-connections or for containment at the service line entrance. This series features two poppet style check valves, replaceable check seats, with an intermediate relief valve. Its compact modular design facilitates easy maintenance and assembly access. Sizes 1/2 to 1 in (15 - 25 mm) shutoffs have tee handles. The LF919 features Lead Free construction to comply with Lead Free installation requirements.
WATTS® Reduced Pressure Zone Assembly, Series: LF919, 1/2 in Nominal, NPT, 175 psi, 33 to 110 deg F, Quarter-Turn Resilient Seated Ball Valve Ball Valve/Gate Valve, Full Port, Cast Copper Silicon Alloy Body, 9-1/2 in L x 3-3/8 in W x 6-7/8 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
- The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
- Shut-off valve with tee handle
- (2) Resilient Seated Isolation Valves, (4) Resilient Seated Test Cocks and Air Gap Drain Fitting
- Ball Valve / Gate Valve TypeQuarter-Turn Resilient Seated Ball ValveBody MaterialCast Copper Silicon AlloyDomestic / ImportDomesticEnd StyleNPTNominal Size1/2 inDimensions9-1/2 in L x 3-3/8 in W x 6-7/8 in HManufacturerWatts Water TechnologiesManufacturer #0065371Port TypeFullPressure Rating175 psiSeriesLF919Temperature Rating33 to 110 degF