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Needle Valves
Alco UN Series High-Pressure Needle Valve, 1/2" Female NPT, 10000 psi, SS316, UN4NS
Alco

Alco UN Series High-Pressure Needle Valve, 1/2" Female NPT, 10000 psi, SS316, UN4NS

Mfr. part no.
UN4NS
SKU
NV-UK-10K-FF-08

Specifications

Series UN Series
Maximum Pressure 10000 psi @ 38°C
Temperature Range -40 to +230°C
Connection Size 1/2" Female NPT
Valve Pattern Straight / inline
Body Material 316 Stainless Steel
Packing Material RTFE
Orifice Size 5 mm
Stem Tip Hardened non-rotating 17-4PH

Key Features

  • Rated to 10000 psi at 38°C
  • 1/2" Female NPT end connection
  • Compact SS316 straight-pattern body
  • Metal-to-metal seat for positive shutoff
  • Hardened non-rotating tip helps reduce wear
  • RTFE packing with back-sealing stem
  • Made in UK.

Description

The Alco UN4NS is a 1/2" female NPT high-pressure needle valve rated to 10,000 psi at 38°C, with an operating temperature range of -40 to +230°C. It features an SS316 straight-pattern body, metal-to-metal seat, hardened 17-4PH non-rotating tip, RTFE packing and a stainless steel T-bar handle. The valve is suitable for accurate throttling and reliable isolation of pressure instruments, sampling lines and other demanding high-pressure process connections.

Applications

  • Gauge and pressure transmitter isolation
  • Sampling panels and analyzer lines
  • Chemical injection and dosing skids
  • Hydraulic and pneumatic control lines
  • High-pressure process isolation and throttling

Documents

  • Alco Needle Valves UN Series — Datasheet

    PDF, 204 KB

  • Alco Valves RTG Range — Catalog

    PDF, 3.2 MB

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