The high-temperature and high-pressure welded needle valve adopts an integral forged alloy steel or stainless steel valve body, with a temperature resistance of up to 570 ℃ or above
○ PTFE：-65℉-450℉(-54℃-232℃)
○ PPL：-65℉-500℉(-54℃-260℃)
○ Graphite: -65 ℉ -1200 ℉ (-54 ℃ -649 ℃)
○ Caliber: 1/4 "~1", 6mm~28mm;
○ Working pressure: 6000PSIG (413bar)~10000PSIG (689bar)
○ Port types: BW (butt welding), SW (socket welding), UBM (loose fitting welding), threaded, etc
○ Material: Stainless steel SS316, 304, 321, F91, F92, and other special materials
The high-temperature and high-pressure welded needle valve adopts an integral forged alloy steel or stainless steel valve body, with a temperature resistance of over 570 ℃ and a pressure resistance level of PN160~PN420; Both ends are connected by butt welding (BW) and fully welded to the pipeline to eliminate the risk of leakage; The precision conical needle valve core, combined with hard alloy or metal sealing structure, ensures excellent flow regulation accuracy and tight shut-off performance under high temperature and high pressure, and is widely used in harsh working conditions such as power plants, petrochemicals, hydrogen energy, and supercritical fluids.
Welding high-pressure needle valves for power plants are designed specifically for thermal power generation, nuclear power, and supercritical units
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.
The integrated welded double needle valve is primarily used in gas dispensing devices, serving as an instrument root valve or process valve.