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Lightweight Stainless Steel Double Check Valve Assemblies with Integral Butterfly or OSY Shutoffs - Deringer 20/20G
Lightweight Stainless Steel Double Check Valve Assemblies with Integral Butterfly or OSY Shutoffs - Deringer 20/20G

    Lightweight Stainless Steel Double Check Valve Assemblies with Integral Butterfly or OSY Shutoffs - Deringer 20/20G

    Ames Deringer™ 20 and 20G Double Check Valve Assemblies are designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions. Deringer 20 features integral Eccentric-seal™ butterfly shutoff valves for a short lay length, and Dual-action™ checks for high performance at low- and high-flow rates. Deringer 20G also features Dual-action checks, but with OS&Y shutoff valves.

    Either may be installed under continuous pressure service to protect against both backpressure and backsiphonage. Maximum working pressure: 175psi (12 bar).


    Specification
    • Features

      • Integral shutoffs for shorter lay length and lightweight construction (Deringer 20 only)
      • Tamper-resistant test cocks
      • Dual-action check module for low- and high-flow performance
      • Prewired supervisory switches (Deringer 20 only)
      • Bow-seal™ full access cover for lower weight and easy access to valve internals
    Technical specification
    • Unique ref.deringer-20-20g-backflow-preventer
    • Product familyPlumbing & Flow Control Solutions
    • Product groupBackflow Prevention
    • TypeObject (single object)
    • Date of publishing2020-03-10
    • Edition number1
    Related
    • Material mainBronze
    • Designed inUnited States
    • Manufactured inUnited States
    Classification
    • BIMobject CategoryPlumbing - Valves
    • IFC classificationValve
    • UNSPSC nameValves
    • UNSPSC code401416
    • Uniclass 2015 CodePr_65_54_40_13
    • Uniclass 2015 DescriptionCheck valves
    • CSI MasterFormat 2014 Code40 05 65
    • CSI MasterFormat 2014 TitleValves for Pump Control and Check Service
    • OmniClass Number23-27 31 19
    • OmniClass TitleCheck Valves
    • CSI UniFormat II CodeC1030
    • CSI UniFormat II TitleFittings

    Region availability

    North America
    Canada
    United States