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Check Valve

Swagelok® Check Valves

Swagelok inline check valves come in a range of adjustable and fixed cracking pressures to control back flow in general-service and high-purity applications. Excess flow valves stop the release of excess flow downstream, enhancing system integrity and safety.

Check valves are designed to allow fluids to flow in one direction only and are rated for use in medium- and high-pressure applications. The variety of designs available include spring, poppet, lift, and all-welded high-purity check valves for use in a range of situations.

XS series excess flow valves have a slotted poppet which moves to the tripped position when excess flow occurs downstream, then resets when pressure equalizes. They eliminate the need for a complex bypass mechanism while reducing maintenance time.

Categories

Excess Flow Valves

Excess Flow Valves

Enhance system safety by preventing uncontrolled release of system media if downstream line ruptures with excess flow valves.

High-Purity Welded Check Valves, CW Series

High-Purity Welded Check Valves, CW Series

The all-welded design of high-purity welded check valves provides reliable containment of system fluid while the 316L SS body offers enhanced material purity.

Lift Check Valves, 50 Series

Lift Check Valves, 50 Series

Rugged, all-stainless steel lift check valves limit reverse flow under pressures up to 6000 psig (413 bar) and temperatures up to 900°F (482°C).

Medium-Pressure Check Valves, CV Series

Medium-Pressure Check Valves, CV Series

The medium-pressure check valves are designed for system pressure containment and fluid control to prevent backflow.

Poppet Check Valves, C, CP, CH Series

Poppet Check Valves, C, CP, CH Series

Browse stainless steel and brass poppet check valves, available with a variety of end connections and adjustable or fixed cracking pressures.

Spare Parts and Accessories

Spare Parts and Accessories

Browse deflector caps and a variety of poppet check valve maintenance accessories—including spring, seal and poppet replacement kits.

Ultrahigh-Purity Polymer Check Valves, CHP Series

Ultrahigh-Purity Polymer Check Valves, CHP Series

Our ultrahigh-purity fluoropolymer check valves meet SEMI Standard F57-0301 and provide low cracking pressure while maximizing flow and reducing pressure drop.

Check Valves Catalogs

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

Swagelok flow coefficient (C<sub>v</sub>) calculator for valves

The Right Valve Can Make All the Difference

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

Use the Tool

Swagelok Resources Curated for You

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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.

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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.

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How Shenyang Blower Works Group Improved Safety and Reliability

Learn how Swagelok Shanghai has helped Shenyang Blower Works Group Corporation achieve consistency, reliability, and cost savings for its customers while improving its own safety and production efficiency.

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How to Improve Your Maintenance Program with Valve and Hose Tags

Read what two Swagelok specialists have to say about how a robust tagging system for hoses and valves throughout your industrial fluid systems can help you simplify maintenance and minimize system downtime.

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