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Forged Check Valves

  • Pressure Seal Swing Check Valves

    No penetration of hinge pin to outside eliminating possibility of pin seal leakage and allowing for in-line service.
    Compact cage unit: all moving parts are attached to the carrier and can be removed easily for service.
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  • Pressure Seal Piston Check Valves

    Diantai's proven pressure seal design.
    Quick and easy repair in the line.
    Integral seat CoCr alloy.
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  • Bolted Cover Swing Check Valves

    Stronger, leakproof bolted body bonnet joint.
    No penetration of hinge pin tooutside eliminating possibility of pin seal leakage and allowing for in-line service.
    Compact cage unit. All moving parts are attached to the carrier and can be removed easily for service.
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  • Bolted Cover Piston Check Valves

    Stronger, leakproof bolted body bonnet joint.
    Low pressure drop compared to vertical globe valves.
    Excellent resistance to thermal changes.
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  • Check Valves

    Diantai's proven pressure seal design.
    Quick and easy repair in the line.
    Integral seat CoCr alloy.
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  • Pistion Check Valves

    Size range(s)
    NPS 1/2 - 4 (DN 15 - 100)
    Pressure rating
    ASME Classes 1690 - 4500
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  • Cryogenic Check Valves

    Stem drive: Two-piece allows for replacement of yoke bushing in-line, removal of handwheel without affecting position of valves (closed or opened).
    Rising stem: Makes for easy visibility for open-close indications.
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