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  • Flanged Segment Ball Valve

    Technical Sizes: DN 25~250mm NPS 1”-10” (wafer type) DN 25~500mm NPS 1”-20” (flange type) Seat Material: Resiliant: PTFE/RPTFE/PEEK/DEVLON/NYLON Metal: Tungsten Carbide/Satellite/Ni60 Pressure Rating: PN 10/16/25/40/63 ANSI 150/300/600 Actuator : Handle/Worm Gear...
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  • Pressure Seal Gate Valves

    Diantai's proven pressure seal design.
    Diantai flexible wedge offers superior tightness of seats and freedom from sticking.
    Wedge guiding minimizes seat rubbing and scuffing resulting in long cycle life.
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  • Pressure Seal Globe Valves

    Diantai's proven pressure seal design.
    Unique parallel slide forged cage unit design comprises all operating parts of the slide discs.
    Designed to ASME B16.34.
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  • Pressure Seal Y-pattern Globe Valves

    Diantai's proven pressure seal design.
    Body guided disc eliminates side thrust and provides longer disc, seat and body life.
    Impactor handwheel for tight shutoff.
    Designed to ASME B16.34.
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  • 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 Bonnet Flexible Wedge Gate Valves

    Stronger, leakproof bolted body bonnet joint ensures joint tightness with a higher bolting torque.
    Wedge guiding minimizes seat rubbing and scuffing resulting in long cycle life.
    Designed to ASME B16.34.
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  • Bolted Bonnet Globe Valves

    Stronger, leakproof bolted body bonnet joint ensures joint tightness with a higher bolting torque.
    Body guided disc eliminates side thrust and provides longer disc, seat and body life.
    Impactor handwheel for tight shutoff.
    Designed to ASME B16.34.
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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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  • Bolted Bonnet Bellows Seal Gate Valves

    Long cycle life bellows (2000 cycles) in Gr. 321 (stainless) or Inconel. Designed for, and successfully tested in high pressure/temperature conditions.
    Bellows monitoring port (optional): Connected to the space above the bellows to monitor performance.
    Non-rotating...
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  • Bolted Bonnet Bellows Seal Globe Valves

    Long cycle life bellows (3000 cycles) in Gr. 321 (stainless) or Inconel. Designed and successfully tested in high pressure/temperature conditions.
    Two-part bellows.
    Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
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