Instrument Isolation Valves VCI Series 11F

Cryogenic Trunnion Mounted Ball Valves

Fire Safe & SIL 3

GVS API 6D Trunnion Mounted, Bolted Body, Cryogenic Ball Valves are manufactured in sizes 2” to 36” and in pressure classes ANSI 150# to 2500#. Available in Metal or Soft Seated, 2-Piece and 3-Piece body designs, Fire-Safe certified and SIL 3 rated, GVS Cryogenic Ball Valves are specially designed for LNG, liquid nitrogen, and other cryogenic applications with temperatures down to -196°C.

Technical Specifications

  • Design: API 6D & CSA Z245.15-17
  • Sizes: 2″–36″ Full & Reduced Port
  • Materials: Forged Stainless Steel
  • Pressures: ANSI Class 150 – 2500

Features

  • Bolted Body, 2-Piece & 3-Piece Construction
  • Double Piston Effect x Single Piston Effect Seats
  • Metal to Metal Seated and/or Soft Seated
  • Anti-Blow-Out Stem Design
  • Anti-Static Devices
  • Optional Shut-Off Ratings
  • Firesafe Certified
  • SIL 3 Certified by 3rd Party Organization: FSES

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GVS Cryogenic Ball Valve

GVS Cryogenic Ball Valves

GVS Trunnion-Mounted Cryogenic Ball Valves are used in Oil & Gas applications involving liquefied gases such as LNG (liquefied natural gas), LPG, and liquid nitrogen, where reliable shut-off at extremely low temperatures is critical. These valves are commonly installed in liquefaction plants, LNG export terminals, storage tanks, and marine loading arms, where they handle cryogenic fluids at high pressures while maintaining sealing integrity and minimizing thermal contraction risks. Designed with extended bonnets and low-temperature materials, they ensure safe, long-term operation in systems requiring bubble-tight isolation, automation, and low fugitive emissions under cryogenic conditions.

  • Liquefaction Plants: Control the flow of natural gas during the cooling and liquefaction process, ensuring tight shut-off at cryogenic temperatures.
  • LNG Export Terminals: Provide critical isolation for loading systems, ensuring safe transfer of LNG to carriers under extreme low-temperature conditions.
  • Cryogenic Storage Tanks: Maintain secure shut-off and flow control at tank inlets and outlets where liquid hydrocarbons are stored below –150°C.
  • Marine Loading Arms: Enable safe, automated operation during ship-to-shore LNG transfer, withstanding thermal shock and frequent cycling.
  • LPG and Liquid Nitrogen Systems: Deliver reliable performance in high-pressure, cryogenic fluid service, preventing leakage and ensuring operational safety.
  • LNG Regasification Terminals: Regulate and isolate LNG as it is warmed and converted back to gas, requiring materials and seals resistant to thermal cycling.

GVS Cryogenic Trunnion Mounted Ball Valves are used in the energy industry for reliable isolation and flow control of liquefied gases such as LNG, liquid nitrogen, and liquid hydrogen under extreme low-temperature conditions. These valves are commonly installed in LNG liquefaction and regasification terminals, cryogenic storage facilities, gas-fired power plants, and energy export infrastructure, where their extended bonnets and low-temperature materials ensure safe, leak-tight performance. Designed for high-pressure and large-diameter service, they are ideal for automated systems requiring durability, thermal stability, and compliance with stringent safety standards in critical energy operations.

  • LNG Liquefaction Terminals: Provide secure, low-temperature isolation of liquefied natural gas during processing and transfer to storage or export systems.
  • LNG Regasification Terminals: Control the flow of LNG as it is converted back to gas, ensuring tight shut-off under cryogenic and high-pressure conditions.
  • Cryogenic Storage Facilities: Maintain reliable sealing at the inlet and outlet of storage tanks holding liquefied gases such as LNG, liquid nitrogen, or hydrogen.
  • Gas-Fired Power Plants: Manage cryogenic fuel delivery to turbines, offering precise control and safe operation in cold, high-pressure environments.
  • Energy Export Infrastructure: Ensure dependable, fire-safe isolation of cryogenic products in marine loading arms and transfer lines for international LNG shipment.
  • Hydrogen Energy Systems: Support safe flow control in emerging clean energy applications involving liquid hydrogen storage and distribution.