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Cast Iron or Cast Aluminum Bronze Compact Wafer Silent Check Valves - 91

Cast Iron or Cast Aluminum Bronze Compact Wafer Silent Check Valves - 91

Series 91 Cast Iron or Cast Aluminum Bronze Compact Wafer Silent Check Valves are designed for liquids and gases where flow reversal can cause surge and water hammer.

Specification
  • Features

    • Compact, lightweight wafer design saves space
    • Disc begins to open at 0.5 psi (34.5 kPa), and opens 1/3 inch per inch of line size for enhanced flow
    • Disc is fully guided at top and bottom to ensure alignment and sealing at any installation angle
    • Sizes: 2 to 6 in. (50 to 150mm)
Technical specification
  • Unique ref.91-Silent-Check-Valves
  • Product familySpecialty Products
  • Product groupSilent Check Valves
  • TypeObject (single object)
  • Date of publishing2024-06-05
  • Edition number1
Related
  • Material mainCast iron
  • Designed inUnited States
  • Manufactured inUnited States
Classification
  • BIMobject CategoryPlumbing - Valves
  • IFC classificationValve
  • UNSPSC nameBall check valves
  • UNSPSC code40141618
  • 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 CodeD20
  • CSI UniFormat II TitlePLUMBING

Region availability

North America
Canada
Mexico
United States