What is a pneumatic angle seat valve and what is its working principle?

Pneumatic angle seat valve function:
Keeping the flow rate saves space. It uses a single-acting pneumatic actuator with spring-safe safety to operate the directional angle seat valve. • Use normally open or normally closed.
Working principle of pneumatic angle seat valve:
The working principle uses compressed air to push the movement of multiple sets of combined pneumatic pistons in the actuator, transmits the force to the characteristics of the beam and the inner curved track, drives the hollow core spindle to rotate, compresses the air disk to each cylinder, and changes the position of the inlet and outlet to change The direction of rotation of the main shaft, according to the required rotation torque of the load (valve), the number of cylinder combinations can be adjusted to drive the load (valve). Two-position five-way solenoid valves are usually used with double-acting pneumatic actuators. Two positions are controllable: on-off, five-way is five-channel ventilation, one of which is connected to the air supply, two and two The inlet and outlet ports of the external air chamber of the cylinder are connected, and the two are connected with the inlet and outlet ports of the internal air chamber. The specific working principle can refer to the working principle of the double-acting pneumatic actuator. Due to the increasing number of control methods and means, there are many methods for controlling pneumatic actuators in actual industrial production and industrial control. The following are commonly used.