ST00FM03

Needle Valve

The high-pressure welding needle valve adopts an integral forging structure, and the valve body material is mostly carbon steel, alloy steel or stainless steel.

Parameter

¡ð Port type: MTB butt welding (card sleeve, SW socket welding, UBM sleeve welding, thread, etc.)

¡ð Working temperature: -20 ¡æ~520 ¡æ

¡ð Pressure environment: 6000PSI up to 10000psi (689bar) maximum

¡ð Drive mode: One character handle, handwheel

¡ð Nominal diameter: 3mm~28mm (1/8~1 ")

¡ð Valve body material: 304, 316, 316L, 321, Hastelloy, Monel alloy


Performance
¡ð Dual stem design: The upper stem is threaded hardened, the lower stem is smooth surface hardened, and the lubricating grease on the threads of the upper stem is isolated from the system medium
¡ð The linear operation of the non rotating lower valve stem replaces the spiral operation, thereby avoiding damage to the valve seat and valve tip components
¡ð Reduce the friction between the packing and the lower valve stem
¡ð Valve accessories can be selected according to different pressures, temperatures, and media to ensure that the valve will not leak under specific working conditions
¡ð At the corresponding temperature, the seal will not experience loose sealing
¡ð It can also be achieved by replacing the valve core to cut off and adjust the flow
¡ð The entire valve stem can also be customized according to user needs
¡ð Optional sealing materials: PTFE, PPL, graphite
¡ð Optional valve panel fixation
¡ð The handle has multiple colors or handwheels to choose from
¡ð Each valve undergoes a sealing test before leaving the factory, and is subjected to a sealing test at 5% of the rated working pressure and 1.5 times the water pressure


Application

The high-pressure welding needle valve adopts an integral forging structure, and the valve body material is mostly carbon steel, alloy steel or stainless steel, with a pressure resistance level of PN100-PN420; Both ends are connected by butt welding (BW), fully welded to the pipeline for installation, ensuring no leakage risk under high temperature, high pressure or hazardous medium conditions; The precision conical needle valve core, combined with hard alloy or metal sealing pairs, achieves precise adjustment and reliable tight shut-off of small flow rates, and is widely used in harsh industrial fields such as petrochemicals, electricity, hydrogen energy, LNG, and high-pressure testing systems.

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