What is a Swing Check Valve and How Does it Work?

By OPW | Jul 09, 2014

A swing check valve is a common type of check valve that is designed specifically to allow product to flow efficiently at maximum flow rates. These general-purpose valves require no external power and have a simple design. In addition, they are easy to maintain and contain minimal components. Standard models have a free-swinging poppet that opens in an arc motion against the hinge in the body of the valve to allow product to flow through and closes automatically to prevent backflow.

swingSwing check valves are also durable and versatile. The body is typically made of bronze and the cap is fitted with a brass seat ring. They can be positioned in horizontal and vertical piping as well as on fuel supply or transfer piping. Commonly used in the oil and gas industry, swing check valves are found on piping for gasoline, diesel, kerosene, ethanol, fuel oil and motor oil.

While swing check valves have a simple and easy to use design and involve minimal components, they are an imperative part to any above ground system. They allow easy flow and keep product from returning (backflow) to the tank. By keeping product in the line, it allows for immediate availability and reduces the effort of the pumping system.

When looking to install swing check valves, it is important to choose a swing check valve that best suits your needs. Different size piping, type of product being transferred and desired flow rates will all play a role in determining appropriate size.

Click here for additional information regarding swing check valves.

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