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Instantly add the Series 36/37 High Performance Butterfly Valve and 50,000+ more product series to your store or catalog  
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Keystone High Performance Butterfly Valve, Series 36/37

Series 36/37 High Performance Butterfly Valve

Brand: Keystone
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The K-LOK unique shaft packing is composed of 3 rings of braided PTFE rope between one PTFE V-ring at the top and bottom.

The packing operates on an interference fit with the body sealing in pressure and vacuum.
Features
  • K-LOK polymer and elastomer seats provide bi-directional, drop-tight shut-off in vacuum as well as at full rated differential pressure. Its unique design does not rely on pressure to assist sealing therefore seals at high and low pressures.

  • Blow-out resistant shaft is standard on all valves for increased safety.

  • Unique packing design allows for use in pressure as well as vacuum without modification or special assembly.

  • Disc taper pins are tangentially positioned half in disc and half in shaft, placing them in compression rather than shear, which eliminates potential for failure.

  • Rocker-shaped gland bridge compensates for uneven adjustment of gland nuts reducing packing leaks.

  • Integrally cast disc position stop perfectly locates the disc in seat, achieving maximum seat and seal life.

  • Extended neck allows for 50 mm (2") of pipeline insulation.

  • Integrally cast mounting pad provides direct mounting of actuators eliminating the need for costly brackets and couplings.

  • Flattened body bore at shaft journal ports positions shaft bearings near disc, providing maximum shaft support resulting in reduced wear and longer life.

    • Specifications

    Brand

    Approvals & Certifications

    • ABS, CRN, SIL Capable

    End Connection

    • Lugged, Wafer, Double Flanged

    Material

    • Super Duplex, Stainless Steel, Duplex, Carbon Steel, 316L Stainless Steel, 316 Stainless Steel

    Media

    • Specialty Gases, Aggressive Liquids & Gases, Air, Air, Inert Gas, Ammonia, Fuel Oil, Hot Water, Light Oil, LPG, Mineral Oil

    Pressure Class

    • ASME

    Process Connection Type

    • 150 RF, 300 RF

    Seat / Seal Type

    • High Performance

    Shutoff Class

    • Zero Leakage

    Standards

    • ASME B16.34, API 609

    Stem

    • Adjustable Packing, Live Loaded

    Valve Size

    • NPS 12 / DN 300, NPS 10 / DN 250, NPS 14 / DN 350, NPS 16 / DN 400, NPS 2 / DN 50

    Valve Size Standard

    • NPS

    Valve Type

    • High Performance Butterfly Valve, Butterfly

    Documentation

    Data Sheets

    Product Manuals

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