Plastic Butterfly Valves

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

Operators of plastic butterfly valves can control the flow of a fluid or gas by pulling a lever that opens or closes the valve. In the open position, the round disc sits perpendicular to the seal around the pipe. Read More…

Plastic Butterfly Valves Plastic butterfly valves are molded from high strength thermoplastic materials and can be fabricated into a strong one-piece design. They are an efficient and reasonably inexpensive valve option for many flow control devices and are used widely in water distribution, chemical services and ventilation applications.

Leading Manufacturers

Montreal, QC  |  514-748-7743

For over 60 years, Velan has manufactured a world-leading range of cast and forged steel gate, globe, check, ball, triple-offset butterfly, knife gate, highly engineered severe service valves and steam traps offering superior performance across all major industrial applications. We concentrate on designing, manufacturing and marketing advanced technology steel valves in a range of types and sizes.

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Velan Inc. $$$

New Berlin, WI  |  262-432-2700

Milwaukee Valve Company has made a commitment to being the best, most responsive valve supplier in the industry, a commitment to quality and service that started over 100 years ago. From concept, through engineering, manufacturing, installation and service, every valve reflects the Company's customer commitment. Our ISO9001-certified facilities manufacture over 4,000 manual and actuated valves.

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Milwaukee Valve Company $$$

Berlin Heights, OH  |  419-588-2066

When it comes to butterfly valves, you have come to the right place! We have been producing excellent quality valves since we first opened our doors. All of our products are put through extensive rigorous testing before leaving our state of the art facility to further ensure 100% quality assurance! Allow us to show you the difference when you work with true professionals! Contact us via telephone or email or check out our website today!

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Shan-Rod, Inc. $$$

Houston, TX  |  713-466-3552

As a butterfly valve designer and manufacturer, our Norris line of products includes 200-psi angle-disc, resilient-seated, metal-lined valves plus 285-psi angle-disc, bidirectional, positive-shutoff butterfly valves. Norriseal-WellMark is an ISO 9001-certified company. Contact us today to learn more!

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Norriseal-WellMark $$$

Louisville, KY  |  800-523-0420

If you are looking for the best AWWA butterfly valves in the country, you've come to the right place! We have some of the most skilled manufacturers and technicians in the world today working on our products. We take pride in our work, and we always manufacture our valves in-house. You can trust us to provide outstanding quality each and every day. Contact us for additional information!

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Erdmann Corporation $$$

St. Paul, WI  |  651-484-5800

Less friction, low torque, less wear, longer life. Unlike other valves that seal with friction, Posi-flate’s unique butterfly valve uses an inflatable seat to seal with air pressure. Thus it requires less torque and a smaller actuator, resulting in lower cost. Plus, the seat automatically compensates for wear, providing longer life. Some users have reported over 6 million cycles and the valves are still going strong.

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Posi-flate Butterfly Valves $$$

Suffern, NY  |  800-554-1394

Archon Industries is a manufacturer and distributor of processing equipment. We provide butterfly valves-stainless steel with heat-insulated handle plus clamp end, manual and butt-weld for the brewing and wine industries. We are your reliability solution when it comes to varieties of valve equipment. At Archon Industries, Inc., customer service is at our top priority. Call us today for a quote!

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Archon Industries, Inc. $$$
placeholder image Velan Inc. Milwaukee Valve Company Shan-Rod, Inc. Norriseal-WellMark Erdmann Corporation Posi-flate Butterfly Valves Archon Industries, Inc.

When the lever is pulled or rotated, however, the disc rotates around so that it fits snugly into the seal and blocks all flow. In other words, the disc has two positions, either parallel or perpendicular to the flow of water. Butterfly valve manufacturers have created plastic valves in particular for their low product cost and flexibility. Other common materials include aluminum, for its light and flexible nature, which makes it a perfect gasket, and stainless steel for its strength and corrosion resistance. Plastic butterfly valves may be cheaper, but they are not as popular as their metal counterparts, mostly because of vulnerability to chemical corrosion. A breakdown of the valve means leaks and damage, so there are companies who do not take the risk.

Lever Operated PTFE Coated Butterfly Valve Plastic Butterfly Valves - Butterfly Valves & Controls Inc.

Other factors besides the basic material separates one butterfly valve from another, and most of these differences can be incorporated into a plastic design as well as a metal. If the piping system is going to consist of very high pressures, then a high performance valve is used, as a pneumatic one is employed in very low pressure systems.

For companies that require the ultimate sealant guarantee, the triple offset butterfly valve should alleviate their fears. This valve is arranged in such a way that it can be turned three different positions and still contain a leak, while also allowing a safeguard against emergency shut off.

The pressure of the system, the fluids flowing through it and the variety of uses the butterfly valve must serve are all considerations a consumer must ponder before purchasing one of a thermoplastic nature or metal. Because of the advances in machining, the parts for butterfly valves as well as other tools can be precise as long as the consumer knows exactly what they need.