A cryogenic globe valve is a valve whose closure member moves along the centerline of the seat, with the port opening proportional to the disc travel. Due to its short valve stem stroke, reliable cutoff capability, and flow regulation features, it is suitable as a shutoff, control, or throttling device.
I. Working Principle
The cryogenic globe valve adopts a spring-loaded sealing structure. Its operation relies on sealing elements within the valve body to block medium flow. When closed, the sealing element tightens via valve stem rotation to seal the seat and prevent flow; when open, the element relaxes to allow passage.
II. Structural Features
Designed with specialized materials, techniques, and processes to meet demands for cryogenic, high-pressure, high-flow, and rapid cutoff applications, it consists of a valve body, bonnet, stem, seat, and sealing elements. Its advantages include high sealing precision, reliability, and durability, ensuring medium safety and process stability.
III. Application Scenarios
Given its unique performance and structure, it is primarily used in cryogenic piping systems for liquefied nitrogen, oxygen, and natural gas, playing a critical role in control and regulation. It is widely applied in LNG storage/transport, chemical, aerospace, and research fields.
IV. Summary
The cryogenic globe valve operates reliably in cryogenic environments, offering high sealing, precision, reliability, and durability. Its specialized design addresses extreme conditions. It is extensively used in cryogenic medium systems like liquid nitrogen, oxygen, and natural gas.
