⚙️ Varied Cryogenic Valves
LO2/LOX/LIN/LN2/LAr/LCO2/LHe/LH2/LNG/LPG/LN2O/LC2H4 Varied Cryogenic Valves:
Low temperature valve refers to the medium temperature in -40ºC to -253ºC of the valve. Specialized manufacturing includes valve varieties: butterfly valve, ball valve, globe valve, throttle valve, check valve, pressure reducing valve, safety valve, instrument valve, three-way switch valve and so on. Nominal diameter up to 1200mm, maximum pressure 45MPa, the lowest temperature -253ºC.
Mainly used in air separation equipment, oil, natural gas liquefied storage and transportation equipment, liquid oxygen, nitrogen, argon, hydrogen, carbon dioxide low temperature storage tank and tank truck, pressure swing adsorption oxygen production, argon and hydrogen recovery equipment.
📋 Specialized Valve Categories
Gas Cylinder Special Valves:
Cryogenic globe valve, cryogenic globe valve with over-current device, cryogenic check valve, cryogenic combination pressure regulating valve, cryogenic safety valve, low temperature booster pressure regulating valve, cryogenic restrictor valve, self-pressurized liquid nitrogen container valves, cryogenic insulated cylinder valves.
Low-temperature Shut-off Valves:
Cryogenic short shaft globe valve, low temperature long shaft globe valve, low temperature angle globe valve, low temperature three-way globe valve, low temperature vacuum jacket globe valve, cryogenic vacuum jacketed angle globe valve, low temperature high pressure globe valve, angle type globe valve, instrument valve needle globe valve.
Feeding Liquid and Air Return Devices:
Cryogenic liquid gun, cryogenic liquid adding port part, low temperature return gas gun, lng liquid adding port part, vehicle lng gas cylinder return port, liquefied natural gas gas cylinder return valve, lng return gas gun, cng loading arm, cryogenic liquid lng loading arm, pneumatic liquid adding gun, automatic liquid adding gun, elbow break away coupling valve, breakaway coupling, emergency release coupler.
Low Temperature Ball Valves & Safety Valves:
Ultra-low temperature ball valve, cryogenic tank box ball valve, low temperature high pressure ball valve, low temperature tee ball valve, cryogenic emergency escape ball valve, cryogenic hard seal full opening safety valve, cryogenic soft seal full opening safety valve, cryogenic tank box safety valve, low temperature micro-opening safety valve.
📊 Product Parameters
| Pressure Rating |
PN1.6MPa - PN45MPa (CLASS150LB to CLASS1500LB) |
| Valve Sizes |
DN15~DN1200 / (1/2~48") |
| Connecting Format |
Flanged type, welding type, thread |
| Valve Material |
A182, A350, A351, A352, LC1, LC2, LC3, LCB, LCC, LF2, LF3, LF5, LF9, CF3, CF3M, CF8, CF8M, F304, F304L, F316, F316L etc. |
| Working Temperature |
-46ºC, -101ºC, -196ºC, -253ºC |
| Driving Mode |
Manual, bevel gear transmission, electric |
| Design Standards |
GB, JIS, ANSI, DIN, BS, EN etc. |
| Suitable Medium |
Liquid carbon dioxide, oxygen, argon, nitrogen, helium, hydrogen, natural gas, ammonia, chlorine, LPG, propane, ethylene, propylene, methane, methanol, ethane, nitrous oxide, etc. |
🛡️ Manufacturing and Inspection
Strict manufacturing technology and special equipment are used for low-temperature valves, with precise quality control for parts. After special low-temperature treatment, rough machined parts are placed in the cooling medium for 2-6 hours to release stress. This ensures material performance and finishing size, preventing deformation and leakage due to extreme temperature changes. Parts undergo strict cleaning to remove oil before assembly to ensure high performance.
🚀 Industrial Applications
Applications: Gas liquefaction equipment, air separation equipment, LNG storage and transportation, liquid oxygen/nitrogen/hydrogen storage tanks, and PSA oxygen/nitrogen production equipment.
Used across energy, petrochemical, metallurgy, aerospace, nuclear industry, railway, chemical fertilizer, electric power, environmental protection, and pharmaceutical industries for cryogenic occasions.
📝 Ordering Instructions
- Models: Consult for specific model standards.
- Technical Support: Provide working conditions, design drawings, or technical specifications.
- Ordering Parameters: Diameter (DN), Nominal Pressure (MPa), Temperature (ºC), Connection Mode.
- Driving Mode: Manual, worm gear, pneumatic, electric, etc.
- Confirmation: A quotation list and technical standard description will be provided for confirmation.
❓ FAQ
1. What is the minimum temperature these cryogenic valves can withstand?
Our cryogenic valves are designed to operate at extremely low temperatures, reaching as low as -253ºC, suitable for liquid hydrogen and helium applications.
2. What materials are typically used for cryogenic valve construction?
We use high-grade materials such as A182, A350, A351, CF8, CF8M, F304, and F316L, which maintain their structural integrity at sub-zero temperatures.
3. How do you prevent leakage caused by thermal deformation?
Parts undergo a special low-temperature treatment where they are submerged in a cooling medium for 2 to 6 hours. This process releases internal stress and ensures dimensional stability.
4. Which industries commonly utilize these cryogenic valves?
They are widely used in LNG transportation, air separation units, aerospace, petrochemical plants, and medical oxygen production facilities.
5. What information is required for a custom valve quotation?
Please provide the nominal diameter (DN), pressure rating (MPa), working temperature (ºC), connection type, and the specific medium being handled.
6. Are the valves cleaned for oxygen service?
Yes, all cryogenic valve parts undergo strict cleaning processes to remove any traces of oil or grease, which is essential for safe operation in liquid oxygen service.
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