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Home / Products / LF957RPDA, LF957NRPDA, LF957ZRPDA Lead Free* Reduced Pressure Detector Assembly
Watts Water Technologies Logo
957 OSY Reduced Pressure Zone Assembly

LF957RPDA Lead Free* Reduced Pressure Detector Assembly

Technical Data | Related Products

Manufactured by: Watts Water Technologies
Model: LF957RPDA

Watts Series LF957RPDA, LF957NRPDA, LF957ZRPDA Reduced Pressure Detector Assemblies provide protection to the potable water system from contamination in accordance with national plumbing codes.

The LF957RPDA, LF957NRPDA, LF957ZRPDA are normally used in health hazard applications to protect against backsiphonage and backpressure.

The Watts LF957RPDA, LF957NRPDA, LF957ZRPDA are used to monitor unauthorized use of water from the fire protection system. They feature Lead Free* construction to comply with Lead Free* installation requirements.

Available Options
  • OSY – UL/FM outside stem and yoke, resilient seated gate valves
  • BFG – UL/FM grooved gear operated butterfly valves with tamper switch
  • OSY FxG – Flanged inlet gate connection and grooved outlet
    gate connection
  • OSY GxF – Grooved inlet gate connection and flanged outlet
    gate connection
  • OSY GxG – Grooved inlet gate connection and grooved outlet
    gate connection

Additional Information

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Technical Data

Available Materials:
Stainless Steel

Pressure Rating:
to 175 psi

Temperature Range:
33°F to 110°F

See product datasheet for additional details

Features
  • Lead Free* construction
  • Extremely compact design
  • 70% lighter than traditional designs
  • 304 (Schedule 40) stainless steel housing & sleeve
  • Groove fittings allow integral pipeline adjustment
  • Patented torsion spring check provides lowest pressure loss
  • Unmatched ease of serviceability
  • Replaceable check disc rubber
  • Available with grooved butterfly valve shutoffs
  • Bottom mounted cast stainless steel relief valve
  • Metered bypass to detect leakage or theft of water from the fire sprinkler system
Certifications
  • ASSE 1047
  • CSA B64.4
  • FM
  • UL

BBC Pump and Equipment Co.

777 North Tibbs Avenue
Indianapolis, IN 46222

P: 317-636-1111
F: 317-636-5467
sales@bbcpump.com
service@bbcpump.com

M-F, 8:00 AM - 5:00 PM

Indiana’s Pump Experts Since 1981

Our mission is to provide customer oriented service through the proper application of quality pump equipment.

BBC Pump and Equipment Company supplies superior pumps, equipment and systems; designed, installed and serviced by the best engineers and technicians in Indiana.

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