The high-pressure butt-welding double needle valve is integrally forged from high-quality alloy steel or stainless steel, boasting excellent high-pressure resistance.
○ Port type: MTB butt welding (MTS socket welding, ferrule, UBM loose welding, thread, etc.)
○ Operating temperature: -20℃~520℃
○ Pressure environment: 6000PSI, with a maximum of 10000psi (689bar)
○ Diameter: BW3/4" (1/8"-2", 3mm-50mm)
○ Material: 304, 316, 321, Hastelloy, Monel
○ Integrated forged design
○ Dual valve stem design: upper valve stem with threaded hardening and lower valve stem with surface hardening
○ Isolate the lower valve stem thread lubricant from the system medium
○ Linear, rather than non-rotating, helical movement of the lower valve stem prevents wear and damage to the valve seat and tip, reducing the total friction area between the packing and the lower valve stem
○ Safety back seat seal in fully opened position
○ Each valve undergoes a sealing test before leaving the factory, and is tested at 5% of the rated working pressure with a water pressure of 1.5 times the rated working pressure
The high-pressure butt-welding double needle valve is integrally forged from high-quality alloy steel or stainless steel, featuring excellent high-pressure resistance, high temperature resistance, and sealing performance. With a dual-valve parallel design and compact structure, it facilitates the simultaneous control of on/off of two media paths. The needle valve core allows for precise flow adjustment. The butt-welding connection method provides high strength and good vibration resistance, making it suitable for high-pressure pipeline systems in petroleum, chemical, natural gas, and other industries, ensuring safe and reliable operation for instrument pressure introduction, sampling, or discharge.
The double ends of the needle valve with flexible joints are equipped with flexible joints for easy on-site disassembly and maintenance of instruments;
The panel mounted ultra-high pressure needle valve is designed for compact space and centralized control, integrated into the instrument panel or test bench, with a pressure resistance of up to 20000psi (about 138MPa).
Welding high-pressure needle valves for power plants are designed specifically for thermal power generation, nuclear power, and supercritical units