LN Series needle valves are designed for the special temperature, pressure and compatibility required in many severe service applications in the oil & gas, chemical/petrochemical, and power industries. The locked bonnet and live-loaded chevron packing are ideal for applications having high vibration and dynamic pressures and temperatures. LN Series valves are also available in gauge and block & bleed valve configurations. HLN Series needle valves are designed for pressures up to 10,000 psig (689 bar)

Stainless Steel Needle Valves for Severe Service Applications

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  • Temperature: -100 to 1200° F (-73 to 648° F)
  • Pressure: up to 6000 psig (413 bar)
  • Valve Orifice Sizes (max. Cv):
    • LN4: 0.156 orifice (0.34)
    • LN6: 0.250 orifice (0.85)
    • LN8: 0.437 orifice (2.18)
  • Patterns: Straight, angle, gauge, and block and bleed
  • Body Materials: 316 SS, Alloy 400, and C-276
  • Packing Materials: PTFE (Standard) and flexible graphite. PEEK packing is available for LN6 and HLN6 valves only.
  • Stem types: Non-rotating vee, soft seal (PCTFE), regulating and metering
  • End Connection Types: Duolok, Unilok and Griplok tube fittings, NPT and BSP pipe ends, SAE straight thread, and tube and pipe socket and butt weld
  • End Connection Sizes
    • Fractional: 1/8 to 1 in.
    • Metric: 6 to 12 mm (Duolok tube fittings only)

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Needle Valves - LN Series Severe Service Needle Valves F&B Chart

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Specifications

  • Temperature: -100 to 1200° F (-73 to 648° F)
  • Pressure: up to 10000 psig (689 bar)
  • Valve Orifice Sizes (max. Cv):10K Needle Valves Severe Service
    • HLN4: 0.156 orifice (0.34)
    • HLN6: 0.250 orifice (0.85)

HLN Series 10K Needle Valves

  • Patterns: Straight
  • Body Materials: 316 SS
  • Packing Materials: PTFE (Standard), PEEK, and flexible graphite.
  • Stem types: Non-rotating vee, regulating and metering
  • End Connection Types: Duolok, Unilok and Griplok tube fittings, NPT and BSP pipe ends, and tube and pipe socket weld
  • End Connection Sizes
    • Fractional: 1/4 and 1/2 in.
    • Metric: 6 and 12 mm (Duolok tube fittings only)