Wafer Butterfly Valves

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

Wafer butterfly valves are the more common of the two designs of butterfly valves, the other design being lug style. Read More…

Wafer Butterfly Valves Wafer butterfly valves are typically sandwiched between two flanges using bolts and nuts; the pressure of the nuts on the backside of the flange holds the valve in place.

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 $$$

Roselle, NJ  |  800-899-0553

Assured Automation is an ISO 9001:2008 certified company. For your convenience, we even offer an online pricing feature! Design your custom project using our website tools and get an accurate projection. Build it, see it and price it…online! If you like what you see, order it directly from our site! We have a huge selection of products. Let us be the source for all of your butterfly valve needs.

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Assured Automation $$$

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 Assured Automation Archon Industries, Inc.

In addition to being easier to install, wafer butterfly valves are cheaper than the lug style. These two differ in a couple of senses. First, the lug butterfly valve design has threaded inserts and can be installed using nuts but no bolts whereas the wafer style requires nuts and bolts. Both are attached in conjunction with flanged butterfly valves, the centre piece bolted into where the piping meets, protected by the extended edges of flanges that serve as a tight and efficient seal.

Resilient Seated Iron Butterfly Valves Wafer Butterfly Valves - Butterfly Valves & Controls Inc.

Basically, the lug style is employed more often in environments where the pipes may need to be separated without bothering the other side, while wafer valves are effective against backflow. Because of the prevalence of the uni-directional system preference, the wafer design is more popular. The only disadvantage is that, unlike lug designs, wafer butterfly valves cannot be moved. Because of the advances in machining techniques, both styles can be built to fit perfectly, ensuring the most precise and leak free valve possible.

Wafer butterfly valves consist of a seal that fits around the wall of a pipe, a round disc, and a control lever. The wafer butterfly valves discs' rotates ninety degrees at the turn of the lever. When the disc is parallel to the flow of water, the valve is in open position and lets all gases or liquids pass; when the handle is turned, the disc rotates around to a position parallel to the flow of water.

In this closed position, the disc fits snugly into the seal and blocks all flow through the pipe. Wafer butterfly valves can be made of a variety of materials, including stainless steel, plastic, and other metals. Although plastic is cheaper, it is not used as often because it is more prone to corrosion then the metals used, such as cast iron.

Aluminum is also occasionally incorporated to make the gasket part of the valve, since it is a lightweight and flexible metal. Wafer butterfly valves are used to control the flow in water distribution, chemical services, and ventilation applications.