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SK 系列多用途球阀

Swagelok® Multipurpose Ball Valves (SK Series)

Swagelok SK series multipurpose ball valves offer low-torque, quarter-turn operation in a compact design, providing positive shutoff in applications up to 6000 psig (413 bar). Low emissions certification per API 624 is available.

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Swagelok SK series multipurpose ball valves provide high flow capacity and low-torque, quarter-turn actuation in a compact design. Designed for use in applications up to 6000 psig (413 bar), these valves feature bidirectional flow, flow coefficients ranging from 0.9 to 1.4, a variety of end connections (Swagelok gaugeable tube fitting, NPT and ISO pipe, and Swagelok male VCO® end connections), standard panel mounting capabilities, and field rebuildability with a seal kit. Low-temperature SK series valves are also available, as well as low-E valve certification per API 624.

SK series ball valves have O-ring stem seals that require no packing adjustment and provide leak-tight seal to atmosphere. Spring-loaded PEEK seats provide chemical compatibility and leak-tight integrity in both low- and high-pressure systems. A directional handle indicates flow direction and open/closed position, and a stainless steel floating ball design reduces wear and extends cycle life.


Working Pressure Up to 6000 psig (413 bar)
Temperature –40 to 302°F (–40 to 150°C)
Flow Coefficient Up to 1.4
Body Materials 316 stainless steel
Seat Materials PEEK
End Connections
Type Swagelok tube fitting, NPT, ISO pipe, and male VCO®
Size 1/4 and 3/8 in.; 6 and 8 mm
Configuration On-off

SK Series Multipurpose Ball Valves Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

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Use our valve flow coefficient (Cv) calculator to choose a valve sized correctly for your needs.

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Swagelok Resources Curated for You

SK 球阀(SK 系列)解决方案聚焦
SK Ball Valves (SK Series) Solutions Spotlight

Learn more about Swagelok® multipurpose SK series ball valves, a line of high-pressure, high-flow valves with a compact design. SK series valves offers low-torque, quarter-turn operation, providing positive shutoff in applications up to 6000 psig (413 bar).

How to Select the Right Valves for Your Industrial Fluid System

Learn how to apply the practical STAMPED method to select the valves most suited to your industrial fluid or sampling system design applications.

Minimize the Costs of Fugitive Emissions with Low-E Valves

Fugitive emissions are a growing concern in the chemical and petroleum refining industry. Certified low-emissions (Low-E) valves can protect your facility and bottom line. Learn what they are, how they are tested, and how they can help you in this post.

Tips to Maintaining a Representative Sample in an Analytical Instrumentation System

Maintaining a representative sample within an analytical instrumentation system can be difficult. Learn how to identify major issues and avoid complications associated with a compromised representative sample from the experts at Swagelok.

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