The control lever must only be rotated 90° in order to close off the pipe because butterfly valves are quarter turn valves. Read More…
Leading Manufacturers
Velan Inc.
Montreal, QC | 514-748-7743For 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.
Milwaukee Valve Company
New Berlin, WI | 262-432-2700Milwaukee 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.
Shan-Rod, Inc.
Berlin Heights, OH | 419-588-2066When 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!
Norriseal-WellMark
Houston, TX | 713-466-3552As 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!
Erdmann Corporation
Louisville, KY | 800-523-0420If 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!
Posi-flate Butterfly Valves
St. Paul, WI | 651-484-5800Less 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.
Archon Industries, Inc.
Suffern, NY | 800-554-1394Archon 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!
Flanged Butterfly Valves - Butterfly Valves & Controls Inc.Flanged butterfly valves may be made of stainless steel, cast iron, plastic or other materials, although metal is the most common. The diameter of flanged valves ranges from a few inches to a few feet because they are used for a variety of applications. Butterfly valves are able to completely shutoff a pipe quickly and easily while withstanding high volumes, pressures and temperatures. There are different kinds of butterfly valves that are designed specially to work with different materials and in specific applications.
Flanged Butterfly Valves - Butterfly Valves & Controls Inc.Flanged butterfly valves can be classified as rotary, pneumatic and hydraulic valves and are used in water distribution, chemical services, ventilation applications and other situations involving a liquid or gas. They are particularly beneficial in settings that require pipe shutdowns quickly and efficiently, in case of an emergency.
Flanged butterfly valves rely on a round vane or disc for operation. The disc is centrally mounted on a shaft or stem, which acts as the axis for the rotating disc. When the valve is open the gas, liquid or slurry flows through the pipes and through the valve. The disc lays parallel to the pipe and the direction of the current. When the lever or crank wheel is engaged, the disc is rotated and stands upright, securely plugging the pipe.
Unlike other valves, butterfly valves do not trap volumes of liquids or gases between valve components because there is only one part that creates the seal. Flanged butterfly valves have at least one flange that allows it to be added in between pipes in a line or system. The flanges are part of the enclosure that contains the valve so flanged butterfly valves are actually short pipes in and of themselves. Lug and wafer butterfly valves are two other methods of integrating the valve.
Lug valves are installed using a set of bolts that screw into the flanges on pipes. This setup allows one side of the pipe line to be disconnected without affecting the other side. Wafer valves are narrow valves that are designed to seal against bidirectional pressure to prevent backflow.