Swagelok® Medium-Pressure Trunnion-Style Ball Valves (FKB Series)
Swagelok FKB series medium-pressure ball valves provide positive shutoff in applications up to 20 000 psig (1378 bar) and feature an advanced design that reduces seal wear, improving reliability.
Request More InformationThe advanced design of the Swagelok FKB series ball valve reduces seal wear and improves the reliability of connections across a full range of operating pressures (up to 20 000 pisg or 1378 bar) and temperatures. The trunnion-style ball features an innovative direct-load design to enable leak tight performance and a bottom-loaded stem design to eliminate stem blowout, protecting operators.
FKB series valves are available with female NPT end connections and gaugable Swagelok medium-pressure tube fitting end connections that reduce valve installation time and cost while providing robust tube grip and vibration resistance. CTB series valves are also available in two-way (bidirectional) or three-way (common-side or bottom-inlet port) configurations with flow coefficients ranging from 0.44 to 11.3. They can be configured with an ISO 5211-compliant pneumatic actuator and for "low emissions" certification per API 641.
Three orifice sizes are available (6FKB, 8FKB, and 12FKB series) and end connection sizes range from 1/4 in. to 1 in. Mounting options include panel mounting using an optional panel nut, two bolts through a panel into the top of the valve body, or bolting through body mounting holes with dual bolt patterns for OEM valve replacement.
Specifications
| Working Pressure | Up to 20 000 psig (1378 bar) |
| Temperature | 0 to 250°F (–17 to 121°C) |
| Flow Coefficient | 0.44 to 11.3 |
| End Connections | |
| Type | Swagelok FK medium-pressure tube fitting or NPT |
| Size | 1/4 to 1 in. |
| Configuration | On-off (2-way), switching (3-way) |
| Actuation | Manual or pneumatic |
| Orifice Sizes | 0.209 in. (5.31 mm), 0.375 in. (9.52 mm), 0.560 in. (14.2 mm) |
FKB Series Medium-Pressure Trunnion-Style Ball Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
Features: 316 stainless steel construction; Temperatures up 1000°F (537°C); Medium-pressure (MP) fittings, Size range—1/4 to to 1 in., Pressure rating—up to 20 000 psig (1378 bar); High-pressure (HP) fittings, Size range—1/4 to 9/16 in., Pressure rating—up to 60 000 psig (4134 bar); NACE® MR0175/ISO15156 compliance available
The Right Valve Can Make All the Difference
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