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.
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The 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.
Swagelok® offers medium- and high-pressure fittings, tubing, valves, and related accessories with temperatures up 1000°F (537°C), pressure ratings up to 60 000 psig (4134 bar) in sizes ranging from 1/4 to to 1 in. for medium-pressure products and 1/4 to 9/16 in. for high-pressure products. NACE® MR0175/ISO15156 compliance is available.
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