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Wafer Check Valve vs. Swing Check Valve


Check valves are vital to a range of material transfer systems in the industrial and residential sectors. Numerous industries rely on check valves to prevent fluid backflow and maintain consistent pressure within their material transfer systems, including chemical processing, wastewater management, manufacturing, and more. 

Two of the most commonly used check valve styles include wafer check valves and swing check valves. This blog post will discuss wafer check valves versus swing check valves, comparing their advantages, disadvantages, and applicable industries.

Wafer Check Valves

Wafer check valves fit into the confined space between two flanges. These simple check valves have no controls and maintain a slim profile like a wafer. The valve’s seating arrangement holds a disc that lifts from its seat when material flows in the intended direction. When material flows in the opposite direction, the disc reseats itself to block flow and prevent material from flowing back any further.

Wafer check valves can operate with fluids or solids suspended in a fluid, making them a prevalent choice for regulating flow as inlet and outlet valves. They see frequent usage in pools, aquariums, mining operations, power plants, and chemical processing plants.

Swing Check Valves

Swing check valves have a swinging disc within a molded body that allows process fluids to flow in the intended direction while restricting reverse flow. Swing check valves are self-activating, so no user action is required for the mechanism to operate. A pin holds a disc within the body of the valve and acts as a swinging hinge. When flow travels in the intended direction, the disc remains parallel to permit pass-through. When the flow reverses, the disk pulls back to shut off the flow.

Swing check valves come in two different shapes: a Y-shape and a straight-through design. The self-activating body design allows the disc to swing open completely when materials are flowing through the valve. This capacity makes the valve ideal for applications that require full flow. The preferred applications include gas and liquid systems, flood prevention systems, sewage, and toilets. 

At TVI, we offer swing check valves and wafer check valves for a range of applications.

Check Valves From TVI

TVI is a high-quality valve supplier focused on customer satisfaction. We have been supplying numerous industries since 1986 with a broad range of swing and wafer check valves.

Our check valves are the primary solution to pressure regulation and backflow prevention in transfer systems for gas, water, chemicals, and other materials. Wafer check valves provide a low profile method of managing flow. They are ideal for pools and aquariums, along with industrial applications that require a reliable inlet or outlet valve. See our selection of wafer check valves to find the solution for your application.

TVI’s swing check valves require more space than wafer check valves but provide a full parallel opening for greater flow. This self-activating solution is available in Y-shape and straight designs. The swing check valve is ideal for gas and liquid systems, along with sewage and toilets. To find the best solution for your needs, please view our selection of swing check valves.

For assistance selecting the best valve for your system, please don’t hesitate to contact us.