Triple Offset Butterfly Valves

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

These valves are quarter turn valves meaning that the control lever must only be rotated 90° in order to close off the pipe. Read More…

Triple Offset Butterfly Valves Triple offset butterfly valves are mechanisms that control the flow of fluids in pipes while being eccentric in three places. Butterfly valves consist of a seal around the wall of a pipe, a round or elliptical disc and a control lever.

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.

Triple offset butterfly valves may be made of stainless steel, cast iron, plastic and other materials. The diameter of these valves range from a few inches to a few feet because they are used in a variety of situations. There are different kinds of butterfly valves that have been modified for different fluids, pressures and usages.

Triple offset valves are generally used in high pressure environments because the disc is a conical cross section; it is elliptical and positioned slightly differently within the pipe. It provides a tight seal while experiencing less wear. These valves also do not use a rubber seal like other butterfly valves do, which means that the seal makes metal-to-metal contact.

Gear Operated Triple-Offset Butterfly Valve Triple Offset Butterfly Valve - Butterfly Valves & Controls Inc.

Butterfly valves can be classified as hydraulic valves and are used in water distribution, chemical services, ventilation applications and other situations involving a liquid or gas where fast pipe shutoff is beneficial or necessary. High performance butterfly valves are typically double offset, a similar design to the triple offset butterfly valve.

A triple offset butterfly valve is closed when the disc is upright in the seat, the actual place where the valve creates a seal. The control lever is connected to the valve through the outer enclosure so when the lever rotates, the disc or vane does too. The disc's outer perimeter is machined to form an elliptical.

The disc is not centered in the pipe as other butterfly valves are designed to be; instead, it is slightly off-center and is made to have three offsets, or non-centered positions, that allow different rates of flow for the gas or liquid that is flowing through the pipes. The first offset is that the stem, which connects the disc to the rest of the valve, is not centered vertically.

The disc is not flat but has sides that slope to a rounded point so the disc appears off-balance. The second offset is that it is not centered vertically within the thickness from the flat side of the disc to the rounded tip. The third offset is related to the engagement angle when the disc moves on its diagonal axis. Triple offset butterfly valves generally have a lower maximum capacity than flat disc valves that are centered.