Piston Check Valve - Arita | Unimech
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Piston Check Valve

Piston Check Valve Overview

Piston check valve, also known as lift check valve where its disc is lifted up off valve seat by higher pressure of upstream to allow flow to downstream. A guide keeps motion of the disc on a vertical line, so the disc can later reseat properly. When upstream pressure is no longer higher, gravity will cause the disc to lower onto its seat, shutting the valve to stop reverse flow. Arita Piston Check Valve comes in more size choices compared to other check valve design due to its design simplicity. It should be noted to the user that piston check valve can only be install in horizontal position to perform effectively.

Products

API 602 Forged Steel Piston (Lift) Check Valve

ARITA®

  • Size

    Rating

    Body Material

  • 3/8" - 4"

    ASME Class 150 to 2500

    Carbon Steel, Stainless Steel, Alloy Steel

  • Trim

    As per API 600

  • Connection

    Flange, Threaded, Weld

  • Design Standard

    API 602, ASME B16.34, BS 5352

  • Testing

    API 598

Bolted Cover Piston (Lift) Check Valve

ARITA®

  • Size

    Rating

    Body Material

  • 1/2" - 12"

    ANSI 150 to 900

    Carbon Steel, Stainless Steel, Alloy Steel

  • Trim

    As per API 600

  • Connection

    Flange, Threaded, Weld

  • Design Standard

    API 600, ASME B16.34, API 594, BS 1868

  • Testing

    API 598

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