The butterfly valve is designed to be used as a shut-off or regulating valve for flow control in heat supply systems, water supply, in technological processes of the food, chemical, oil and gas, pulp and paper and other industries. Operating principle: The valves are opened and closed by turning the disk by 90°. Opening is performed by turning the handle counterclockwise, closing - clockwise.
Elephant pneumatic rotary actuators, double-acting PA-DA and pneumatic rotary actuators with return spring PA-SA are designed to automate the process of controlling industrial valves at a maximum torque of up to 2128 Nm.
The pneumatic distributor is used to change the direction, start, stop compressed air flows in a pneumatic system depending on the external control action.
The limit switch unit is designed for visual and electrical signaling of the end positions of the shut-off element of the valve: valve, tap or butterfly valve. It is installed on top of the pneumatic drive surface and connected to the DIN standard drive shaft. As a rule, there are two sensors in a sealed box that monitor the position of the drive shaft and signal in extreme positions. OMRON microswitches, inductive sensors or reed switches are used as sensors.
The air preparation unit is designed to clean compressed air from droplet moisture and solid particles, remove condensate, automatically maintain the pressure at a given level, supply lubricant from the reservoir to the compressed air flow to the pneumatic system elements.

Technical characteristics of the Elephant WBV3131S-2W-T-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-SA, pneumatic distributor 4V320-08 220V, LSUAPL-210N, ATU AFC2000

Technical data of SA pneumatic actuators with return springs:

SA pneumatic actuators rotary with return springs