Butterfly valve definition or what is wafer or flanged butterfly valve?
The butterfly valve product is designed  for throttling or shutting off the flow of corrosive or incorrosive gases, liquids, semiliquids and solid powder,
Easily installed in any selected position in pipelines or on vessels in the industries of petroleum processing, chemicals, food, medicine, textile, paper making, hydroelectricity engineering, ship building, water supply and sewage, metallurgy, energy engineering as well as light industry, etc. 

Features 
Small&compact in size and light in weight.
Easy installation and maintenance. 
Quick 90degrees on-off operation. Minimized operating torque, energy saving. 
Excellent sealing ,no Leak,
Wide selection of materials, applicable for various medium. 
Flow curve tending to straight line. Excellent regulation performance. 
Long service life.

Considering the butterfly valve can be available in different material ,size,working pressure,etc,please just let us know your requirement,we will recommend the best sutiable model with the lowest price,

Please kindly note that we only provide high quality other than those cheap price valve .

ToFine Flow Control,   sales@flow-controls.com