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Plastic Check Valve Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial plastic check valve manufacturers and suppliers. Access our comprehensive index to review and source plastic check valve manufacturers with preview ads and detailed product descriptions. These plastic check valve companies can design, engineer and manufacture plastic check valves to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these plastic check valve manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of plastic coolant check valves, plastic check flow valve, pvc foot check valves.

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When it comes to plastic check valves, you want both affordability and excellent quality. Our designs are researched and designed with the customer in mind. We have a narrow focus and only manufacture the best products in the industry. We are known for our dedication to quality and our customers. You can learn more by contacting us today!
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Conval has become a leader in producing valves for the world's most demanding applications. We have a global team of experts to help to meet your most challenging needs. We invite you to contact us today. We have high-pressure, high-temperature ball, bellows, check, gate, globe, throttling, and urea service valves for the world`s most demanding applications.
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For many years, we have been providing plastic check valves and other check valves. Our experienced staff can take a customer requirement through design and manufacturing. We offer a wide range of sizes, cracking pressures, and seal options in our standard product line. Our valves can operate up to 10,000 PSI, and can be made from such materials as brass, aluminum, steel and stainless steel. Call us today for more information!
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Founded 30 years ago, DK-Lok USA now has a facility of modern manufacturing and office space. QCI maintains an international sales force of graduate engineers ready to assist you in solving your fluid flow problems. Please contact DK-Lok USA for your next purchase of quality plastic check valves.
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Doering recognizes the need for specialty components not readily available or price competitive on the market to help make equipment more efficient. For more than twenty years Primary has been manufacturing high-quality plastic check valves designed to enhance the accuracy and safety of customers' technology. Please visit Legend`s website for full descriptions of superior services.
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Industry Information

Plastic Check Valves

Plastic check valves are unidirectional flow control devices made out of organic, synthetic or processed polymers. The purpose of these mechanisms, like all check valves, is to eliminate the potential damage that could be caused by backflow if left unchecked. Back pressure or reverse flow can result in mechanical failure, product contamination, pressure surges and flooding.

A plastic check valve, like all check valves, prevents backflow by allowing process streams such as water, corrosives, compressed air, liquid metal, hydraulic fluid, fuel, gasoline, syrup, acids, adhesives, slurry and sludge, to name a few, to flow freely in a downstream direction while simultaneously sealing itself should the direction of flow reverse. Plastic check valves provide this security with relatively simple devices. The body of the valve is a molded, extruded or die cast cylindrical element that is placed midstream in the plumbing. Because they require no external activation or actuation mechanism, these non return valves are easily installed into pre-existing pipeline configurations. The body holds in place a ring-like plastic element known as the seat. This extends from the inner walls toward the center-line of the pipe but does not fully close. A plugging mechanism, such as a piston or ball rests in the seat. Another plugging device is a swinging disk. When pressure is great enough, and going in the desired direction, the stopper is lifted away from the seat of the valve opening the gap to allow process stream to flow freely downstream. Reverse flow inversely pushes the plug back into the hole, creating an air tight seal that will not be opened again until forward flow pressure is greater than the back pressure.


As aforementioned, plastic check valves come into frequent contact with a number of different process streams. In order to provide reliable stream control, it is important to select a valve material that is chemically compatible with the flow composition. A number of different plastics are therefore available to suit check valve needs under any circumstances. PVC check valves are common as they provide good flexibility, smooth surfaces and are nontoxic. Polypropylene is also used and is similar to PVC but with additional benefits of resistance to UV, weathering and ozone exposure. PTFE is suited for use with highly corrosive substances while CPVC maintains integrity in high heat applications such as boiling water or molten metal transfer. Each of these acetal polymers offers high fatigue resistance and lubricity which help to increase product longevity. While metals may also be used in valve design, plastics are easily fabricated into precise shapes and offer many of the same qualities as metals with lower overhead cost. In addition to material considerations, manufacturers should consider plastic check valve dimensions, pressure ratings, thermal capabilities, connection types and curing technology, all of which can have a significant impact on the plastic check valve performance.
Plastic Check Valves
Plastic Check Valves
Plastic Check Valves - Primary Fluid Systems Inc.
Plastic Check Valves - Primary Fluid Systems Inc.
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