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Cast Steel Cryogenic Gate Valve (TEJI)

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Description

The Cryogenic Gate Valve is available in two bonnet designs: Bolted Bonnet and Welded Bonnet. The Bolted Bonnet design features bolts and nuts connecting the valve body to the bonnet, utilizing wound gaskets made of 316 flexible graphite. Metal rings can be incorporated upon special request. Alternatively, the Welded Bonnet design securely welds the valve body and bonnet, ensuring a fully sealed connection. Penetration welding can also be utilized based on customer specifications.

Applicable Medium: Suitable for handling low-temperature media such as Methane, Liquid natural gas, Hexene, Carbon dioxide, Liquid ammonia, Liquid oxygen, Liquid nitrogen, Liquid hydrogen, and more.

Specifications:

  1. Valve Size: 2-1/2” to 24”

  2. Pressure Rating: ASME 150# to 1500#

  3. Temperature Range: Capable of operating down to -196°C

  4. Codes & Standards:

    • Designed to BS, ASME, ASTM standards
    • Complies with BS6364, ASME B16.34, and ASME B16.25/16.5

  5. Shell & Seat Leak Test: API 598 & BS6364

  6. Construction Features:

    • End Connections available in Flanged, Butt-Welded, or RTJ types
    • Long Extended Bonnet design
    • Gear-operated for manual operation
    • Pressure Relief Design (Pressure Balance Design)
    • Fire Safety and Anti-static Design
    • Uni- / Bi-Directional flow capability

Key Features:

  1. Pressure Relief Design:

    • Includes a pressure relief hole on the inlet side of the ram to prevent abnormal pressure build-up in the middle cavity.

  2. Bonnet Design Considerations:

    • Bonnet length is tailored to the valve’s operating temperature, ensuring reliable stem packing sealing.

  3. Material Selection:

    • Carefully chosen packing, gaskets, and other components based on the valve’s operational temperature for optimal performance.

  4. Quality Assurance:

    • Rigorous control over material chemical composition and mechanical performance, including low-temperature impact toughness.

  5. Versatile Design:

    • Accommodates various piping flange standards and sealing surface types, meeting diverse engineering requirements.

Supporting Documents

General Terms

  • ReflowX and the seller retain the right to evaluate and approve offers.
  • Buyers should verify quantities and conditions upon delivery.
  • After successful engagement, both buyer and seller manage communication for payment terms and delivery schedule.
  • All parties agree to adhere to ReflowX Terms and Conditions in transactions.
  • Buyers can request value-added services such as pre-purchase inspections, Expediting & Delivery Services through ReflowX. Contact us!
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