Circle Valve Technologies Inc.
1533 Gehman Road
Harleysville, PA 19438

Toll Free:800-645-6733 | Phone:267-933-6300 | Fax:267-933-6305|
email: [email protected]
All Categories > Hoke® Valves > Needle Valves > 3900 Series Forged Body Integral Bonnet Needle Valves > Item # 3912F8B  


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Item # 3912F8B, 3900 Series Forged Body Integral Bonnet Needle Valves

List Price QUOTE

Regulating stem tip 0.312" (7.9mm) orifice/1.1 Cv





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

Specifications

Series

3900

Type

Needle Valve

Body Style

Globe

Body Material

Brass

Stem Tip

Regulating

Inlet

1/2" Female NPT

Outlet

1/2" Female NPT

Max. Operating Pressure

3000 psig
207
bar

Operating Temperature

-65 to 450 ºF
-54 to 232
ºC

Orifice Size

0.312 in
7.9
mm

Flow Coefficient (Cv)

1.10

Panel Hole Dia.

19.4 mm
49/64
in

Max. Panel Thickness

7.9 mm
5/16
in


Materials of Construction

3900 Series Material of Construction



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




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