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General Utility and Forged-Body Needle Valves   Needle valves, general utility and forged body
Swagelok® GU series and F10 series needle valves feature a nonrotating, hardened needle with safety back-seating for positive shutoff in working pressures up to 10 000 psig (690 bar).


More Information

Download the General Utility Service Needle Valves—GU Series catalog.
Download the Forged-Body Needle Valves, 10 000 psig (690 bar)—F10 Series catalog.
Find general utility service needle valves in the product search.
Contact your authorized Swagelok sales and service representative.





General Utility Service Needle Valves—GU Series
GU series needle valves are for use in general purpose applications to isolate or vent system media. The hardened stainless steel, nonrotating needle promotes leak-tight shutoff and long service life. The valve stem threads are isolated from the media.

Needle valves, GU series Specifications
Working Pressure
Temperature
Flow Coefficient
Body Material
Packing Material
End Connections
•  Type
•  Size

Up to 6000 psig (413 bar)
0 to 450°F (–17 to 232°C)
Up to 2.25
316 stainless steel, carbon steel
PTFE

NPT, tube socket weld, pipe socket weld
1/4 to 1 in.; 6 to 25 mm

GU series cutaway viewFeatures
  • Straight and angle patterns 
  • Compact design 
  • Stainless steel stop pin 
  • Stem threads above packing, protected from system media 
  • Nonrotating, hardened needle design for leak-tight shutoff and long service life 
  • Safety back-seating needle design seals in fully open position 
  • Suitable for sour gas service; materials are selected in accordance with NACE MR0175/ISO 15156.

Testing
Every Swagelok GU series needle valve is factory tested with nitrogen at 1000 psig (69 bar). Seats have a maximum allowable leak rate of 0.1 std cm3/min. Shell testing is performed to a requirement of no detectable leakage with a liquid leak detector.

Cleaning and Packaging
Every Swagelok GU series needle valve is cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10).

Antitamper handle  Antitamper handle key   Round lockable handle

Antitamper
Handle

Antitamper
Key

Lockable
Handle 

Options
Antitamper Handle
The antitamper handle reduces the risk of human error and deliberate tampering. The valve can be operated with the antitamper key.

Round Lockable Handles
The lockable handles can lock the valve in any position. These round handles are available in nylon and stainless steel.

Handle Kits
Handle kits are available for stainless steel bar and nylon and stainless steel round lockable handles.

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Forged-Body Needle Valves, 10 000 psig (690 bar)—F10 Series

Forged-body valves, F10 series  Specifications
Working Pressure
Temperature
Body Material
Packing Material
End Connections
•  Type
•  Size 
Configurations

Up to 10 000 psig (690 bar)
0 to 850°F (–17 to 454°C)
Forged 316 stainless steel
PTFE, Grafoil®

NPT
1/2 in.
Straight, angle, oblique patterns

F10 series forged-body valve cutaway viewFeatures
  • One-piece stainless steel forged body
  • Shroud protects stem threads against ingress of dirt and dust
  • Stem threads are cold rolled for high strength and smooth operation
  • Stem threads above packing protected from system media
  • Safety back seating needle seals in fully open position
  • Stainless steel handle with square drive stem and lock nut
  • Nonrotating hardened needle for positive shutoff
Testing
Every Swagelok F10 series valve assembly is factory tested hydrostatically; a shell test at 1.5 times maximum rated working pressure and a seat test at 1.1 times maximum rated working pressure, in accordance with BS EN 12266-1 (formerly BS 6755 part 1).

Options
Carbon steel material is available.

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Heat Exchanger Tube Plugs—TP Series
Swagelok® heat exchanger tube plugs seal the ends of leaking tubes, providing longer use of the heat exchanger. The uniform taper and the smooth surface finish assure positive sealing with a minimum installation force.
Swagelok Gauges, Transducers, and Flow Control Devices

Swagelok Gauges, Transducers, and Flow Control Devices
Gauges: Industrial, Process, Safety, Miniature, Low-Pressure, High-Purity
Transducers: Industrial, Explosion-Proof, Ultrahigh-Purity