Flanged Butterfly Valve

Flanged Butterfly Valve

The flanged butterfly valves are widely used in a variety of industries such as the water supply and drainage, thermal power, building project, together with the industrial water system like the steel and petrochemical. Just like the other types of the butterfly valves, the flanged butterfly valves control flow by using a circular disc or vane with its pivot axis at right angles to the direction of flow in the pipe. Or it can be said that the flanged butterfly valves are popular among the on and off or the throttling services.

The flanged butterfly valves are generally with excellent control, tight shut-off and elaborate design. Besides, the cost and care should be paid on the flanged butterfly valves are low. Thus, it is energy saving. Actually, there are several accepted standards which should be obeyed so as to design and manufacture the safe and useful flanged butterfly valves. For example, the common standards are DIN, SMS, ISO, IDF, RJT, AS, BS and BPE. And the flanged butterfly valves can be driven by the pneumatic or electric actuator or can be manually operated.

Flanged butterfly valves consist of body, bushing, o ring, stem, disc, seat and other matching fittings. In most cases, flanged butterfly valves are able to be with simple and compact structure, stable positioning and light weight. And they are easy for installation, operation and maintenance. And no leakage under the rated pressure and elaborate design for high flow rate with low flow resistance.