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Needle instrument valve

What are Needle Instrument Valves?

Needle instrument valves are precision valves with a long, tapered needle-like stem. They provide fine flow control for instrumentation, sampling, calibration, and gauge isolation applications.

Technical Specifications

Parameter Range
Size Range DN6 - DN25 (1/4" - 1")
Pressure Class Class 600 - Class 10000 (PN100 - PN700)
Temperature Range -196°C to +650°C
Body Materials A105, F304, F316, SS316
Stem Materials SS316, SS316L, Monel
End Connections Threaded (NPT/BSP), Socket Weld, Tube fitting
Design Standards API 602, ASME B16.34, BS 5352

Industry Applications

  • Instrumentation: Pressure gauges, transmitters — Gauge valves, manifolds
  • Sampling: Fluid sampling systems — Needle valves
  • Calibration: Calibration stands — Needle valves
  • Process Control: PID loops — Needle valves

Need Needle Instrument Valve Solutions?

Our engineering team can recommend the optimal instrument valve for your application. API 602 certified.

Email: info@chlgvalve.com Call: +86-15601794339