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> Screwed-Bonnet Needle Valves
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 Screwed-Bonnet Needle Valves
Swagelok® screwed-bonnet needle valves offer shutoff or regulating stem tips in straight- or angle-pattern valves with externally adjustable packing.
More Information
Download the Screwed-Bonnet Needle Valves—JB Series catalog.
Download the Screwed-Bonnet Needle Valves—JN Series catalog.
Find screwed-bonnet needle valves, stainless steel in the product search.
Find screwed-bonnet needle valves, brass in the product search.
Stainless Steel JB Series Screwed-Bonnet Needle Valves
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Specifications
Working Pressure
Temperature
Flow Coefficient
Body Material
Packing Material
End Connections
• Type
• Size |
Up to 3000 psig (206 bar)
–40 to 600°F (–40 to 315°C)
Up to 0.58
316 stainless steel
PTFE or Grafoil®
Swagelok tube fitting, NPT, male ISO
1/8 to 3/8 in.; 6 and 8 mm |
Features
- Stem threads isolated from system fluid
- Externally adjustable PTFE packing
- Metal-to-metal shutoff
Testing
Every JB series needle valve is factory tested for bubble-tight shutoff at 100 psi (6.8 bar) differential pressure. Shell testing is performed on a sampling basis at 3000 psig (206 bar) to a requirement of no detectable leakage.
Cleaning and Packaging
Every JB series needle valve is cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10).
Options
Standard ball stem tip is 316 stainless steel; 440C stainless steel and cobalt-based alloy material are available.
Nonrotating ball shutoff stem is standard; regulating stem is available.
Standard handle is anodized aluminum; stainless steel bar handles are available.
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Brass JN Series Screwed-Bonnet Needle Valves
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Specifications
Working Pressure
Temperature
Flow Coefficient
Body Material
Packing Material
End Connections
• Type
• Size |
Up to 600 psig (41.3 bar)
–40 to 300°F (–40 to 148°C)
Up to 0.43
Brass
Virgin PTFE
Swagelok tube fitting, NPT, ISO
1/8 to 3/8 in.; 6 mm |
Features
- Stem threads isolated from system fluid
- Externally adjustable PTFE packing
- PTFE-coated stem tip for repetitive shutoff
- Bonnet lock nut
Testing
Every JN series needle valve is factory tested with nitrogen at 100 psig (6.8 bar). Seats have a maximum allowable leak rate of 0.1 std cm 3 /min. Shell testing is performed with nitrogen at 100 psig (6.8 bar) on a sampling basis to a requirement of no detectable leakage with a liquid leak detector.
Cleaning and Packaging
Every JB series needle valve is cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10).
Options
Vee shutoff stem is standard; regulating stem is available.
Green phenolic handle is standard; black, blue, red, and yellow are available.
Panel mounting is available.
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