overview :Double eccentric structure design is adopted on the high performance butterfly valve. In the design, the spindle offsets the center of the seal face to form the first eccentric and thespindle offsets from the center line of the pipelineto form the second eccentric. The combination of two eccentric will generate cam effect as the disc screw in or out, making it possible to separate the disc from seat by very small torque. There is almost no friction between the disc and seat during switches, and that will lower the operation torque and extend service life. With these advantages, high performance butterfly valve can be used for various kinds of working conditions and medium.

Basic Parameters:

Size Range:  BV21 Basic Type:   Class150  2”~48” (50mm ~ 1200mm)  

                                                           Class300  2”~24” (50mm ~ 600mm)  

 BV22 Fire Safety Type:    Class150  2”~128” (50mm ~ 3200mm) 

                                             Class300  2”~128” (50mm ~ 3200mm） 

Connection Type: wafer, lug

Working Temperature:-196 ˚C ~650 ˚C (-321°F ~ 1202°F)

Drive Type: manual, worm gear, pneumatic, electric

Applicable Medium: corrosive chemical media, water, gas, acid, alkali, steam, pharmaceutical, etc.

High performance butterfly valve is mainly used in the following industries:

• Industrial facilities, machinery, natural gas, etc.
• High temperature water, condensate water
• Chemical medicine, food production
• Paper industry, shipbuilding, power plant, automation equipment
• Household water, sea water desalination, etc.