Cryogenic Valves

Cryogenic Valves – Key Features & Advantages

  • Extended Bonnet Design

    Isolates the stem packing from extreme cold, preventing freeze-up and ensuring smooth operation.
    Minimizes heat transfer to maintain media integrity (e.g., liquid nitrogen, argon).

  • Low-Emission Sealing

    Graphite or PTFE-based seals combined with metal-to-metal seating for bubble-tight closure.
    Compliant with BS 6364 and ISO 28921 cryogenic valve standards.

  • Material Integrity

    Austenitic stainless steel (SS316L, 304L) or nickel alloys (Inconel) to resist embrittlement.
    Deep-freeze treatment of components ensures dimensional stability.

  • Advantages Over Standard Valves

    Zero Internal Leakage: Precision-machined seats withstand thermal contraction without compromising sealing.

  • Anti-Static & Fire-Safe: Optional designs meet API 607/6FA for hazardous environments.

  • Long Service Life: Robust construction reduces maintenance in LNG terminals or air separation plants.

  • Cryogenic Valves – Engineered for Extreme Low-Temperature Performance

    Cryogenic valves are specially designed to operate reliably in temperatures as low as -196°C (-320°F), ensuring safe control of liquefied gases (LNG, LN2, LOX, LHe) and cryogenic fluids. Featuring extended bonnets, anti-icing stems, and advanced sealing systems, they prevent heat ingress and leakage in critical sub-zero environments.

Cast Steel Cryogenic Gate Valves

Features
Applicable for Low Temperatures down to -320°F(-196°C)
Extended Bonnet
Pressure release holes
Materials subzero treatment and test
Designs according to ASME B16.34

Standards
Design & Manufacture: API 600, API 6D, ASME B16.34
Face to Face: API 6D, ASME B16.10, EN 558
End Connection: ASME B16.5, ASME B16.25, EN 1092, EN 12627, JIS B2220
Test : API 600, API 6D, EN 12266
Sizes: 2″ – 48″
Pressure Rating: Class 150 – Class 2500
Body Materials: WCB, LCB, WC6, WC9, C12, C5, CF8, CF8M etc.
Operation: Handwheel, Gear, Pneumatic, Hydraulic and Electric actuator

Cast Steel Cryogenic Globe Valves

Features
Applicable for Low Temperatures down to -320°F(-196°C)
Extended Bonnet
Pressure release holes
Materials subzero treatment and test
Designs according to ASME B16.34

Standards
Design & Manufacture: API 602, BS 5352, ASME B16.34
ASME B16.10, EN 558
End Connection: ASME B1.20.1, ASME B16.11, ASME B16.25, ASME B16.5, EN 1092
Test and Inspection: API 598, EN 12266
Sizes: 1/2″ – 2″
Pressure Rating: Class 150 – Class 2500
Body Material: A105, LF2, F11, F22, F5, F304, F304L, F316, F316L etc.
Operation: Handwheel

Stainless Steel Cryogenic Ball Valves

Features
1.Positive ball cavity relief to prevent dangerous overpressure due to thermal expansion.
2.Pressure safe stem assembled inside the body for blowout prevention.
3.Zero leak packing incorporating bellville spring live loaded packing assures zero leakage and high cycle life.
4.Effective bonnet extension conforms to industry standards for wall thickness and lengths reducing heat transfer and frost free packing.
5.High performance/low thermal stress design of valve parts assure tight shutoff, zero body leakage and low torque through large thermal excursions from ambient to -150F.

Standards
Design & Manufacture: API 6D, BS 5351, API 607
API B16.10, API 6D, EN 558, DIN 3202
End Connection: ASME B16.5, ASME B16.25, EN 1092, JIS B2220
Test and Inspection: API 6D, EN 12266, API 598
Sizes: 1/2″ – 8″ or DN15 – DN200
Pressure Rating: Class150 – Class300 or PN16 – PN50
Material of valve body: LF1, LF2, LF3, LF9, F304, F304L, F316, F316L, etc.
Operated by: Level, Gear or Actuation available