Pneumatic inflatable butterfly valve is a type of butterfly valve that achieves efficient sealing through a combination of pneumatic actuation and inflatable sealing structure.
Its core features are as follows:

• Actuation mode: Equipped with a pneumatic actuator (piston or diaphragm type), which drives the valve stem to open and close the disc via compressed air.
• Sealing mechanism: An inflatable sealing ring (made of rubber or elastic material) is installed at the valve seat. When inflated, the sealing ring expands and tightly adheres to the edge of the disc to form a seal; when deflated, the ring contracts to reduce friction and facilitate valve operation.
• Core advantages: Adjustable sealing force, zero leakage (especially suitable for low-pressure / vacuum environments), and excellent wear resistance. It is ideal for shut-off or regulation of media such as powder, granules and fluids containing impurities.