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Series 221/222 Butterfly Valve

Brand: Keystone

An economical bonded resilient seated butterfly valve for bi-directional and end-of-line service.

Ideal for building services and irrigation applications that require shut-off control. 

The valve has a moulded in seat and can be used in full vacuum service.
Features
  • Bubble tight shut-off at full rated pressure in both directions.

  • The F222 lugged version is suitable for bi-directional end-of-line service at full pressure rating.

  • Top and bottom bearings absorbs side thrust loads.

  • A moulded-in O-ring in the seat for flange sealing eliminates the need for flange gaskets.

  • Body locating holes for easy installation and centering between flanges.

  • Extended neck allows adequate clearance for flange and insulation.
  • Specifications

    Brand

    Approvals & Certifications

    • American Bureau of Shipping Shipboard, CRN, ABS

    End Connection

    • Wafer, Lugged

    Material

    • 304 Stainless Steel, 316 Stainless Steel, Cast Iron, Buna-N, EPDM Rubber

    Media

    • Hot Water, Air, Inert Gas, Air, Light Oil, Liquid, Vacuum, Water, Water Glycol

    Operating Temperature

    • Up to 250° F (120° C)

    Pressure Class

    • ASME

    Process Connection Type

    • 150 RF

    Seat / Seal Type

    • Resilient

    Shutoff Class

    • Zero Leakage

    Standards

    • ASME B16.34, API 609

    Stem

    • O-Ring

    Valve Size

    • NPS 8 / DN 200, NPS 4 / DN 100, NPS 3 / DN 80, NPS 2-1/2 / DN 65, NPS 2 / DN 50, NPS 12 / DN 300, NPS 10 / DN 250, 5”, NPS 6 / DN 150

    Valve Size Standard

    • NPS

    Valve Type

    • Butterfly
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