Pneumatic Needle Valve

Pneumatic needle valve series includes four sub-categories: basic pneumatic, heavy-duty pneumatic, miniature pneumatic, and hydraulic control types. Designed for ultra-high pressure fluid systems, they adopt low-pressure air/hydraulic drive with spring reset structure, supporting NO (Normally Open) and NC (Normally Closed) modes. Covering a full pressure range from 15000PSI to 60000PSI, the valves are made of 316/316L stainless steel with 17-4PH or carbide valve needles. Featuring excellent pressure resistance, wear resistance and corrosion resistance, they are suitable for gas, oil, water and various fluid media.

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Core Advantage

  • Stable drive: Piston actuator design with longer service life than diaphragm valves, sensitive action and stable operation, supporting remote automatic control;
  • Premium material: 316/316L stainless steel body for anti-corrosion and wear resistance; 17-4PH/carbide needle for reliable high-pressure hard sealing;
  • Reliable structure: Non-rotating needle & stem design avoids wear and jamming; split stem structure for easy maintenance and replacement;
  • Strong compatibility: 6 port configurations, multi-directional installation to adapt to various pipeline layouts;
  • Full traceability: All pressure-bearing parts with exclusive serial numbers, traceable to raw materials;
  • Complete models: Cover miniature compact, standard general, heavy-duty high-flow and hydraulic-driven types to meet all working conditions

Application

Ultra-high pressure test equipment, oil and gas exploitation, petrochemical fluid control systems, laboratory precision fluid equipment, instrument gas and liquid pipelines, industrial automatic hydraulic/pneumatic systems, heavy industrial equipment, portable detection devices, hydraulic test benches, high-pressure fluid transmission equipment

Technical Specifications

Product TypeMax Working PressureTube ODOrificeTypical ModelCore Description
Basic Pneumatic Needle Valve20/30/60KPSI1/4″2.0~2.8mmSI20121-NC/NOSI30121-NC/NOSI60121-NC/NOStandard ultra-high pressure model, 75psi air driven, optional position sensor, universal for general high-pressure fluid systems
Heavy-Duty Pneumatic Needle Valve20/30/60KPSI1/4″, 3/8″2.0~4.5mmHI20131-NC/NOHI30121HI60121-NC/NOAnodized aluminum actuator, large flow passage, designed for heavy-duty conditions, compatible with remote control upgrade
Miniature Pneumatic Needle Valve15KPSI1/4″CustomFull MI SeriesUltra-compact structure, wide temperature resistance, ideal for confined spaces and portable precision equipment
Hydraulic Needle Valve22/23KPSI3/8″1.6~3.2mmPI22131-NCPI40131-NCHydraulic drive with high thrust and stable performance, suitable for high-precision hydraulic control systems