Swagelok® Medium-Pressure Ball Valves
Swagelok FKB series trunnion-style ball valves offer low-torque, quarter-turn operation in a compact design providing positive shutoff in applications up to 15 000 psig (1034 bar).

Specifications Working Pressure Temperature Flow Coefficient Body Material Seat Material End Connections • Type • Size Configurations

Up to 15 000 psig (1034  bar) 0 to 250°F (–17 to 121°C) 0.44 to 4.5  316 stainless steel Reinforced PEEK Swagelok medium-pressure tube fitting, female NPT 1/4, 3/8, 1/2 in. On-off (2-way), switching (3-way)

More Information
Download the Medium-Pressure Ball Valves—FKB Series catalog.
Find medium-pressure ball valves in the product search.

Other Ball Valves
Swagelok alternative fuel service (AFS) ball valves
SK series multipurpose ball valves
83 series trunnion ball valves

Other Medium-Pressure Products
Medium-pressure tube fittings
Medium-pressure tubing

Features  

• Innovative stem and end connection seal design (patent-pending): 
  • maintains full pressure rating throughout the entire operating temperature range 
  • reduces seal wear that can lead to shell leakage.
• Trunnion-style ball with innovative direct-load design (patent-pending):
  • seals consistently across a full range of pressures, even if system is depressurized and repressurized 
  • ensures reliable operation for improved actuation of control systems.
• Positionable handle with unique stop disk provides flexibility in component layout, enabling reduced system footprint.
• Bottom-loaded stem design eliminates stem blowout and enhances operator safety.
• Swagelok medium-pressure tube fitting end connections: 
  • reduce valve installation time and cost 
  • provide robust tube grip and vibration resistance.
• Nitrogen seat and helium shell tested to ensure product integrity 
• Positionable bar handle and ISO 5211-compliant pneumatic actuators
• Manual valve panel and shoulder mounting are available as options.

Testing
Every Swagelok medium-pressure ball valve is factory tested with nitrogen at 1000 psig (68.9 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
All Swagelok medium-pressure ball valves are cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10).

Options and Accessories
Stainless steel bar handles with blue electrostatic powder coating are standard. Black, green, orange, red, and yellow colors are available.
Locking handle, panel nut, cap screw, and replacement stop disk kits are available.
Pneumatic actuator options include solenoid valves, position indicators, and limit switches.