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All Categories > Hoke® Valves > Needle Valves > 3800 Series Forged Body Integral Bonnet Needle Valves > Item # 3842G8Y  
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Item # 3842G8Y, 3800 Series Forged Body Integral Bonnet Needle Valves

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Vee-point stem tip 0.219" (5.6mm) orifice/0.55 Cv



Unit of Measure: Imperial Metric Both

Specifications  · Typical Applications  · Features & Benefits  · Materials of Construction

Specifications

Series

3800

Type

Needle Valve

Body Style

Globe

Body Material

316 Stainless Steel

Stem Tip

Vee-point

Inlet

1/2" Gyrolok®

Outlet

1/2" Gyrolok®

Max. Operating Pressure

5000 psig
345
bar

Operating Temperature

-65 to 450 ºF
-54 to 232
ºC

Orifice Size

0.219 in
5.6
mm

Flow Coefficient (Cv)

0.55

Panel Hole Dia.

16.2 mm
41/64
in

Max. Panel Thickness

4.7 mm
3/16
in


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



Features & Benefits
Safety
  • Integral bonnet provides differential 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® 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® 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



  • Materials of Construction



      Description Brass 316 stainless steel Carbon steel Monel®
    1 Body Brass 316 stainless steel Carbon steel Monel®
    2 Stem 316 stainless steel 316 stainless steel 316 stainless steel Monel®
    3 Stem tip
    soft
    hard
    PCTFE
    17-4PH stainless steel
    PCTFE
    17-4PH stainless steel
    PCTFE
    17-4PH stainless steel
    PCTFE
    Monel®
    4 Stem packing TFE/brass wafers TFE/316 stainless steel wafers TFE/316 stainless steel wafers TFE/Monel® wafers
    5 Handle ABS ABS ABS/aluminum ABS
    6 Panel mounting nut Nickel-plated brass Nickel-plated brass Nickel-plated brass Nickel-plated brass




     MORE IMAGES 

    ·  Hoke Needle Valve 3800 Series

    ·  Hoke Needle Valve 3800 Series 3862L4Y Angle Pattern

    ·  Hoke Needle Valve 3700/3800 Series Globe Pattern Panel Mount


     DOWNLOADS 

    Ordering Options
    (GIF, 70KB)

    Pressure vs Temperature Curve
    (GIF, 31KB)

    Flow Curves
    (GIF, 38KB)

    Hoke 3700 3800 3900 Series Catalog
    (PDF, 252KB)

    Dimensional Data
    (GIF, 159KB)

    Technical Data
    (JPG, 56KB)


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