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Instantly add the Series GRW/GRL (ISO) Butterfly Valve and 50,000+ more product series to your store or catalog  
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Keystone Butterfly Valve, Series GRW/GRL (ISO)

Series GRW/GRL (ISO) Butterfly Valve

Brand: Keystone
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A heavy duty industrial resilient seated butterfly valve.
Features
  • Wafer and lugged body design with face-to-face dimension, according to EN 558 Series 20 and API 609.

  • Designed according to EN 593 and API 609.

  • The seat is field replaceable and fully isolates the body and shaft from the flow.

  • Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere.

  • A secondary shaft sealing provides back-up safety.

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

  • Shaft seals prevent moisture penetrating into the shaft area.

  • The two piece shaft allows for a thin disc and provides minimal obstruction to flow (up to DN 300).

  • Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off.

  • Body locating holes allow ease of installation and centering between the flanges.

  • Extended body neck allows for pipe insulation.

  • Actuator flange according to ISO 5211.

    • Specifications

    Brand

    Applications

    • Cruise Ship, Cooling Water, Compressors, Air Circulation, Facilities & Process Utilities

    Approvals & Certifications

    • ABS, PED, DVWG, CUTR, CRN

    End Connection

    • Wafer, Lugged

    Material

    • Super Duplex, 316 Stainless Steel, Aluminum Bronze, Buna-N, Ductile Iron, Duplex, EPDM Rubber, Nylon

    Media

    • Water Glycol, Water, Liquid, Air

    Operating Temperature

    • Less than 150° C

    Pressure Class

    • PN, ASME

    Process Connection Type

    • PN 16, 150 RF

    Seat / Seal Type

    • Resilient

    Shutoff Class

    • Zero Leakage

    Standards

    • ASME B16.34, API 609

    Stem

    • O-Ring

    Valve Size Standard

    • NPS, DN

    Valve Type

    • Butterfly

    Documentation

    Data Sheets

    Product Manuals

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