Low temperature and high-pressure needle valves are designed specifically for cryogenic conditions, suitable for temperatures as low as -196 ℃ (liquid nitrogen) or even lower, with pressure ratings up to 10000psi (approximately 68.9MPa).
○ Work pressure: 6000 PSI (413 bar)~10000 PSI (689 bar)
○ Working temperature: 110 ℃~-196 ℃
○ Applicable media: LNG, LO2, LN2, LAr, CO2
○ Caliber: 3mm-28mm (1/8 "-1")
○ Port type: ball joint connection and other interface forms
○ Material: 304, 316L, 321, Hastelloy, Monel alloy, etc
○ Integrated body forging, valve stem transmission thread copper alloy structure
○ Made of all stainless steel or special low-temperature alloy material
○ The valve seat and valve core are filled and welded with STL nickel based alloy, and the valve core has a relatively inverted seal
○ Top mounted design of valve stem packing
○ All valves undergo pressure testing
○ The valve body has a compact structure and reliable sealing, with excellent resistance to cold brittleness and micro leakage control capability
○ All valves have been cleaned and meet the requirements of G-4.1 of the American Compressed Gas Association, and can be used for liquid oxygen equipment
○ Used for low-temperature and high-pressure fluid systems such as LNG, air separation, hydrogen energy, and superconductivity
Welding high-pressure needle valves for power plants are designed specifically for thermal power generation, nuclear power, and supercritical units
The Y-shaped high-pressure needle valve adopts a Y-shaped flow channel structure, effectively reducing flow resistance and improving flow capacity
Used for high temperature, high pressure or extremely dangerous medium systems to eliminate the risk of leakage. The 90 ° angle flow channel design is easy to install and drain, and the precision conical needle valve core is equipped with a hard alloy seal to achieve precise adjustment of micro flow and zero leakage shut-off.