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Spring Check Valves

A reliable source for Check Valve information and leading Check Valve Companies & Manufacturers.

Springs can be incorporated into virtually every type of check valve to ensure the continued integrity of the mechanism. Read More…

Spring Check Valves Spring check valves implement coiled metal components in order to increase the amount of pressure needed to open the valve as well as help maintain closure even in the presence of strong reverse flow surges.
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Leading Manufacturers

W. Des Moines,IA  |  515-224-2301

Our check valves are manufactured with the customer in mind. We believe in offering superior products and services every time. No matter whether you are looking for small or large valves, we can meet your every needs. It is our goal to offer excellent prices and service to each customer. Contact us to learn more today!

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Check-All Valve Manufacturing Company $$$

Sudbury,ON  |  800-461-6331

We make our check valves to be wear resistant and able to withstand the elements in sewage, sludge and slurries plus hold up to pressure drop. Rubber and full-metal-body check valves are offered. Contact us about your process piping needs. EVR Products is an ISO 9001:2015-registered company.

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 EVR Products $$$

Bethlehem,PA  |  610-266-0100

HYDAC Technology is a manufacturer of a wide range of valve products to serve OEMs, manufacturers and end users. Some of our products include ball check valves, stainless steel check valves and relief valves. We have many standard products available for quick delivery at low prices.

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HYDAC Technology Corporation $$$

Clear Lake,MN  |  320-743-2276

Doering manufactures valve and pump products for fluid power applications. Our valves include hydraulic flow control valves, gas valves, stainless steel hydraulic valves, hydraulic pressure control valves, hydraulic poppet valves and hydraulic spool valves. Download our product catalog from our site.

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Doering Company $$$

Plymouth,MN  |  763-559-0177

Pneumadyne, Inc. is an ISO 9001:2015 certified manufacturer of pneumatic components and pneumatic control systems. Pneumadyne’s check valves feature a variety of port sizes including 1/16 tube id barbs, 10-32 and 1/8 NPT threads and ¼ push-in connections to fit plumbing requirements. Pilot operated solutions are also available to reliably hold an actuator position in a variety of applications.

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Pneumadyne, Inc. $$$
placeholder image Check-All Valve Manufacturing Company  EVR Products HYDAC Technology Corporation Doering Company Pneumadyne, Inc.

Rather than a particular category, the word spring is more often incorporated in the name of these other non return valve types. A ball check valve, for example, that uses a spring would be referred to as a spring loaded ball check valve. Swing check valves, wafer check valves and lift check valves also commonly employ a spring mechanism.

The spring check valve is designed to regulate the directionality of a given process stream in a number of industrial applications. Sewage, water treatment, food and chemical processing, petrochemical and power generation industries and many others use these simple devices to increase the pressure rating or cracking pressure, which is the minimum pressure required to force the valve open.

Springs also provide a stronger resistance to backflow, the prevention of which is the main goal of a check valve. Domestic and commercial check valves may also employ spring loading, though smaller coils are often used. It is important to consider the spring and valve specifications to ensure that the spring is strong enough to prevent excessive valve opening, but does not prevent the valve from opening at operational flow pressures.

There are five main components used in the configuration of spring check valves, though specific models may vary considerably. The body is the unit that is inserted in the pipeline or cistern that houses the valve mechanism. Located in the cross section of this cylindrical or spherical cavity is a gap or hole known as the seat. A ball, disc, or other plugging device is held steadily against the seat by the spring. Both the spring and the stopper are located on the downstream side of the check valve.

When a process stream of air or fluid generates enough downstream force to counter the force exerted by the spring, it compresses into a spring retainer. This allows the plug to lift from the seat, creating a gap through which the materials may flow. When the pressure drops, the spring quickly pushes the ball or disc-like implement back to the seat, forming a tight seal.

Spring loaded devices can be mounted both horizontally and vertically regardless of flow direction since they rely on the decompression of the spring itself to close the valve rather than pressure from backflow or gravity as is the case in non spring valve configurations. Valve components are commonly made of durable metals such as steel, aluminum, iron and brass as well as plastics like PVC and polyethylene, depending upon the chemical composition of the process stream.

The springs themselves are made of metal wire that is wound around a cylinder or core and specially formulated for added elasticity. The elasticity of a spring enables it to return to its original position; however, this capability diminishes with use, which should be carefully considered when installing a spring check valve.

Spring Check Valves Informational Video