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PVC Check Valves

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

An acronym for polyvinyl chloride, PVC is a highly diverse polymer that can be formulated to suit a number of check valve applications. As check valves handle corrosive, acidic, basic and abrasive materials, among others, it is important to have valves that are chemically and physically compatible with the process streams they encounter. Read More…

PVC Check Valves PVC check valves are unidirectional flow regulators made of a particularly versatile thermoplastic resin and easily suited to the specific needs of industrial, commercial and even domestic check valve applications.
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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 $$$

Hartsville, SC  |  800-476-9876

ABCO Anderson Brass Company is a family-owned business started in 1931. We produce the Kantleak™ line of valves, including brass ball valves, 3 way ball valves and actuated valves. We also offer needle valves, selector valves, manifold valves, plug and drain valves and other specialty valves.

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Anderson Brass Company $$$

Enfield, CT  |  860-749-0761

Conval manufactures Clampseal™ severe service Y-, angle and T-pattern forged globe stop, check and stop check valves. Available in over 12,000 configurations, in 1/2" through 4" sizes for ASME pressure classes to 4500#. In-line serviceability and interchangeable parts are key features.

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Conval, Inc. $$$

Cincinnati, OH  |  513-852-2000

Powell has been manufacturing quality products since 1846. We offer a line of high temperature, high pressure forged steel valves including wafer check valves. These valves are ideal when dealing with limited space and come in sizes ½” – 4” and are available in threaded or flanged.

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Powell Valves $$$
placeholder image Check-All Valve Manufacturing Company Anderson Brass Company Conval, Inc. Powell Valves

One of the most popular examples of plastic check valves, PVC apparatus are nontoxic and provide smooth flexible valve components. PVC is actually used as the seat of many metal valves, such as the brass check valve, as it compresses to form a tighter seal against backflow, the prevention of which is the main goal of all non return valves.

The design varies among the many types of check valves available for different applications, but the basic concept behind them remains similar. Fluid or gas flowing in the proper forward direction creates enough pressure to open the valve by slightly displacing a piston, ball or disc. This stopper mechanism can only open in one direction.

Check Valve PVC Check Valves - Check-All Valve Manufacturing Co.

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. Because the operation is entirely reliant on the pressure flows of a process stream, they require no external activation or actuation, making installation easy in pre-existing pipes or cisterns.

While metals are often used in check valve design, PVC is just as common, as it is easily fabricated into precise shapes and offers many of the same qualities as metals with lower overhead cost. Because production of polyvinyl chloride requires much less petroleum than most other plastics, it is one of the most popular materials for valve construction.

Most components made of this versatile polymer are produced through the suspension polymerization of water and vinyl chloride monomers. Stabilizers, lubricants and plasticizers may also be added to the mix to ensure the proper valve features for a given application. Combining the resins with additives allow for the production of plastic that is rigid or flexible, opaque or transparent and insulating or conductive. After processing, valve components are produced through extrusion, injection molding, stamping and in some instances die casting.

Considerations for specific PVC composites include dimensions, pressure ratings and thermal capabilities, all of which may vary significantly depending upon the specific additives included in polymerization. The main weakness of PVC is its aversion to UV light. Check valves made of this material should not be used in outdoor applications without consideration for this. Check valve failure could lead to damaged equipment, product contamination, pressure surges and even flooding. As an acetal polymer product, PVC check valves offer high fatigue resistance and lubricity which help to improve product longevity.

PVC Check Valves Informational Video