Ultra high pressure and low-temperature needle valve designed for dual working conditions of deep cold and high pressure
○ Work pressure: up to 60000 PSI (4136 bar)
○ Operating temperature: -196 ° C (-320 ° F) to 30 ° C (86 ° F)
○ Applicable media: LNG, LO2, LN2, LAr, CO2
○ Caliber: 1/4 "3/8" 9/16 "3/4" 1 "1 1/2"
○ Port type: threaded
○ Material: 304, 316, 316L, 321, Hastelloy, Monel alloy
○ Integrated body forging, valve stem transmission thread alloy structure
○ The valve seat and valve core are filled and welded with STL nickel based alloy, and the valve core has a reverse seal
○ Top mounted design of valve stem packing
○ All valves undergo pressure testing
○ 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
The ultra-high pressure low-temperature needle valve is designed for dual working conditions of deep cold and high pressure, suitable for temperatures as low as -196 ℃ (liquid nitrogen) or even -253 ℃ (liquid hydrogen), with pressure levels up to 15000-60000 psi (103-414 MPa). It is made of all stainless steel or low-temperature alloy materials, combined with extended valve covers, anti cold brittle structures, and metal cone seals to ensure no leakage and flexible operation in extreme environments. It is widely used in LNG, hydrogen energy, air separation, and superconducting cooling systems.
Hastelloy high-pressure needle valves are made of high-performance nickel based alloys such as Hastelloy C276 or B3
The high-pressure double needle valve with ferrules is made of high-strength stainless steel and integrates two independent needle valve cores.
The double ends of the needle valve with flexible joints are equipped with flexible joints for easy on-site disassembly and maintenance of instruments;