Low Temperature Service Valves

Falcon is a premier manufacturer specializing in high-performance valves engineered for extreme sub-zero environments. Our low-temperature service valves are designed to maintain bubble-tight shut-off and operational integrity in conditions where standard valves would fail.

We offer a comprehensive range of designs to suit various piping configurations:

• Gate Valves: For full-flow, low-pressure drop applications.

• Globe Valves: Ideal for throttling and frequent operation.

• Check Valves: To prevent backflow in cryogenic lines.

• Ball Valves: Quarter-turn valves for quick shut-off, featuring cavity pressure relief.

• Sizes: Available from 1/2" to 24" (larger sizes available upon request).

• Pressure Classes: ASME Class 150 to 2500.

Cryogenic service requires materials that remain ductile at temperatures as low as -196{°C}.

• Body/Bonnet: ASTM A351 Gr. CF8/CF8M (Stainless Steel) or ASTM A352 Gr. LCB/LCC  or  ASTM A350 LF2(Low Carbon Steel).

• Trim: 316 Stainless Steel with Stellite facing for wear resistance.

• Seals/Gaskets: PTFE, PCTFE (Kel-F), or Graphite (fire-safe).

• Extended Bonnet: Essential to keep the packing gland away from the cold fluid to prevent freezing.

Our valves are manufactured in state-of-the-art facilities using precision CNC machining and controlled welding processes.

• Design: API 600, API 602, API 608, or ASME B16.34.

• Face-to-Face: ASME B16.10.

• End Connections: Flanged (ASME B16.5), Butt-weld (B16.25), or Socket-weld.

Every valve undergoes rigorous testing to ensure safety in hazardous environments.

• Cryogenic Testing: Per BS EN 12567 or MSS SP-134, involving liquid nitrogen cooling to verify seat leakage at service temperatures.

• Shell & Seat Test: API 598.

• Fugitive Emissions: ISO 15848-1 to ensure environmental compliance.

Falcon valves are the trusted choice for:

• LNG (Liquefied Natural Gas): Terminals, carriers, and regasification plants.

• Industrial Gases: Liquid Oxygen (LOX), Nitrogen (LIN), and Argon (LAR).

• Aerospace: Launchpad fuel handling systems.

• Ethylene Plants: Low-temperature petrochemical processing

The most critical component for low-temperature service is the extended bonnet. Falcon’s design ensures that the stem packing remains at an ambient temperature, preventing the packing from freezing and ensuring a leak-proof seal.

• Cavity Pressure Relief: In cryogenic ball and gate valves, trapped liquid can vaporize and create massive internal pressure. Falcon valves feature automatic pressure relief (vent holes or self-relieving seats) to ensure safety.

• Live-Loaded Packing: We utilize Belleville spring washers to maintain a constant load on the gland packing, compensating for thermal expansion and contraction during temperature fluctuations.

• Stellite™ Hard Facing: All seating surfaces are hard-faced with Stellite to prevent "galling"—a common issue when metal-to-metal contact occurs at extreme sub-zero temperatures.

• Anti-Static & Fire-Safe: All designs are inherently anti-static and tested to API 607 standards to ensure performance even in the event of a fire.

We have a particularly strong presence and a deep list of approved vendors in the following regions:

• Middle East / Gulf: Saudi Arabia (Major supplier to SABIC & Farabi), United Arab Emirates (UAE), Qatar, Kuwait, Oman, and Iraq.

• Africa: Nigeria, Kenya, Sierra Leone, Tanzania, and South Africa.

• Southeast Asia & Asia-Pacific: Malaysia, Indonesia, Sri Lanka, Nepal, and Australia.

• Europe & CIS: United Kingdom, Bulgaria, Turkmenistan, and various CIS nations.

• Americas: United States, Canada, and Paraguay