Top mounted design: The valve body is cast or forged as a whole, effectively ensuring the compactness of the pressure bearing parts. The sphere is installed from the upper end of the valve body, making it easy to disassemble and maintain online, reducing downtime and maintenance costs.
Valve cover extension design: Strictly control the gap between the valve stem and the extended neck, reduce cold flow upward, and prevent the increase of switch torque and valve stem scratches caused by packing icing. The design of the outer circular long neck annular lunar groove increases the cooling dissipation area and enhances the cooling dissipation effect.
Valve seat structure: Adopting an adjustable spring preloaded valve seat design, the valve seat is pushed towards the sphere under the action of spring and medium pressure, ensuring sealing performance under low temperature and low pressure. Some products use imported PCTFE and other materials for the valve seat sealing surface, which still has good elasticity under ultra-low temperature conditions, ensuring that the seal does not fail.
Valve stem sealing: A lip shaped sealing ring is used to form a primary seal, and then a compressed valve stem packing is used to form a secondary seal. Some products also adopt a self centering design for the pressure cover and pressure sleeve, effectively preventing imbalance caused by uneven force on the pressure cover.
Material: Stainless Steel, Alloy Steel
Nominal Size: NPS 1/2"~24", DN 15~600
Pressure Rate: Class 150~2500, PN 10~420
Temperature Range: -196°C~+150°C
Operator: Manual, Pneumatic, Electric, etc...
Application Range: LNG, LPG, LNG low temperature conditions and long-distance pipelines such as oil, gas, and natural gas.
There is an oil groove between the valve body and the sealing surface of the pressure-balanced plug valve, and sealing grease can be injected into the valve seat through the oil nozzle at any time to improve the sealing performance. The material of the parts and the size of the flange can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
The Top Entry Cryogenic Floating Ball Valve is a valve suitable for ultra-low temperature environments, mainly used to connect or cut off low-temperature media.
RAYS pig valve is a high-performance ball valve designed for severe industrial environments, featuring multifunctionality aimed at optimizing pipeline cleaning and maintenance. This valve facilitates the movement of pipeline pigs to effectively remove scale, deposits, and other impurities, maintaining cleanliness and flow efficiency in pipelines.