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 ÇöÀçÀ§Ä¡ : Á¦Ç°¾È³» > HOKE (Gyrolok) > Needle Valves
 



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3700,3800,3900 SERIES
FORGED BODY,INTEGRAL BONNET NEEDLE VALVE
Á¦Á¶»ç HOKE

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Typical Applications

  • Instrument air lines
  • Sampling
  • Gas chromatography
  • Test stands
  • Cylinder valves

    Features & Benefits

    • Safety
      • Integral bonnet provides diff erential thread pitch between stem threads and packing nut thread preventing accidental stem removal
    • Stem tip options
      • A choice of PCTFE, metal, vee-point, blunt vee-point, or regulating stem tips
    • Helps eliminate fugitive emissions
      • Dyna-Pak¢ç packing provides a leak-tight seal with low operating torque in deep vacuum or high pressure applications
    • Dependability
      • All valves are tested for bubble-tight leakage at both seat and packing
    • Installation variety
      • Broad selection of male NPT, female NPT, and HOKE GYROLOK¢ç fractional or metric tube fitting connections
    • Handle options
      • Color-coded handles are available for identifying system fluids
    • Panel mounting available
      • All models can be ordered for panel mounting
    • Easy maintenance
      • All models can be panel mounted without packing disruption. Packing can be adjusted without removal from panel
    • Special High Tolerance NPT Thread

    Technical Information

    Maximum Operating Pressure
    316 stainless steel, Monel¢ç, carbon steel
    5000 psig @ 70¡Æ F [345 bar @ 21¡Æ C]
    Brass
    3000 psig @ 70¡Æ F [207 bar @ 21¡Æ C]
    Operating Temperature Range
    Metal stem tip
    −65¡Æ to +450¡Æ F [−54¡Æ to +232¡Æ C]
    PCTFE stem tip
    −20¡Æ to +250¡Æ F [−29¡Æ to +121¡Æ C]
    Orifice Sizes
    0.060¡È to 0.312¡È [1.5mm to 7.9mm]
    Cv Factors
    0.07 to 1.10






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