2024.09.16

Expansion Butterfly Valve

The unique design of the valve seat provides a continuous, deformable cavity for the body and seat. 

When the valve plate is closed, the seat slowly expands and holds the plate under pressure from an external air source to seal. 

When open, pressure in the cavity quickly exhausts the seat, releasing the plate, and then opens the plate. As a result, 

the contact time and contact area between the seat and the plate during opening and closing are very small. 

The valve's operating torque is 85% lower than that of traditional butterfly valves, 

and the wear rate between the valve plate and seat is reduced by about 98%,

 and the integrated pneumatic valve block greatly improves the valve's sealing reliability.

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