Cryogenic Ball Valves are specially designed valves for operation in cryogenic environments, primarily used to control the flow of media in pipelines. These valves maintain excellent sealing performance and operational reliability under extreme low-temperature conditions. They are widely applied in the transportation systems of cryogenic media such as liquefied natural gas (LNG), liquid nitrogen (LN₂), and liquid oxygen (LOX).
Specification
Design Standard: ISO 17292, API6D, BS6364, SHELL SPE 77/200
Size Range: 2"-24" (DN50-DN600)
Pressure Rating: ASME CLASS 150-900LB(PN16-PN150)
Body Material: Stainless Steel
End Connection: RF, BW, RTJ
Operation: Lever, Gear operator, Pneumatic actuator, Electric actuator
Fire Safe Design: Yes, API607, API6FA
Temperature: minus 196°C
Applications: LNG, Air Separation, Ethene, LPG, etc.
Function
Shut-off Function
The cryogenic ball valve achieves channel opening/closing through spherical rotation, ensuring complete medium flow interruption when required, thereby guaranteeing system safety and stability.
Flow Regulation
Precise control of the sphere's opening degree accommodates varying flow demands under different operational conditions.
Backflow Prevention
Certain models incorporate specially designed sealing structures to enforce unidirectional flow, preventing potential equipment damage or safety hazards caused by reverse media movement.
Technical Design Features
Extended Bonnet Structure Minimizes cryogenic impact on actuation components
Cryogenic-Resistant Materials Stainless steel and Monel alloys ensure structural integrity at ultra-low temperatures
Sealing Solutions PTFE or metal seals guarantee reliable sealing performance in cryogenic environments
Safety Enhancements Fire-resistant and anti-static designs address emergency scenarios
Market Applications
Play a critical role in energy, chemical, and air separation industries, where their performance directly impacts overall system efficiency and operational safety.
