4 Inch DN80 DN150 PN16 Ductile Iron Body Metal Epdm Seat Wafer Type Pneumatic Butterfly Valve

Pneumatic wafer butterfly valve, butterfly valve equipped with pneumatic actuator. The execution speed

of pneumatic actuators is relatively fast, and workers do not need to do it themselves, which saves human

resources and time to a large extent. The butterfly disc of the butterfly valve is installed in the diameter

direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc rotates around the

axis, and the initial position of the valve is determined according to the actual demand, when the valve is

rotated 90° from the initial position, it is the end of an action (from open to close, or from close to open),

and conversely, it is the end of another action (from close to open, or from open to close).

Structure: Pneumatic wafer butterfly valve is mainly composed of valve body, valve disc, valve stem,

pneumatic actuator, etc.

The valve body is usually made of ductile iron or stainless steel material, and the interior is precision

machined to have good corrosion resistance.

The disc is the part of the butterfly valve, usually made of stainless steel or aluminum alloy, and the surface

is polished to improve the flow performance.

The valve stem is connected with the valve disc and the pneumatic actuator, and the valve disc is opened and

closed through the control of the pneumatic actuator.

China pneumatic actuator with limit switch for pneumatic butterfly valve

Each valve shall be subject to pressure test before delivery. Unqualified valves shall not be sold.16 kg

shell pressure test, pressure test pressure 24 kg; Maintain the pressure for 2 minutes; Sealing pressure

test: test pressure 17.6 kg; Hold the pressure for 2 minutes