Cast Iron Pneumatic Actuator PTFE Flanged Butterfly Valve

Description

The cast iron pneumatic actuator PTFE flanged butterfly valve soft seal flange butterfly valve series consists of valve body, butterfly plate, valve stem and pneumatic actuator. The pneumatic actuator is driven by compressed air to drive the valve stem to rotate, and the driving butterfly plate rotates 90 degrees to achieve the opening and closing effect. Flange connection, simple structure, easy installation, especially suitable for short installation distance and large diameter pipelines. By selecting different types of pneumatic actuators, it can meet different process control requirements and is widely used in a variety of automatic control pipelines and devices.

Working Principle

When the cast iron pneumatic actuator PTFE flanged butterfly valve is opened, the main control console controls the solenoid valve to open through an electrical signal, and the compressed air enters the pressure regulating filter valve to filter the impurities, oil and other dirt in the compressed air. The pressure regulating valve adjusts the pressure of the compressed air and enters the pneumatic actuator through the solenoid valve. The compressed air drives the pneumatic actuator structure to move, driving the valve stem to rotate 0-90°C, thereby opening the pneumatic butterfly valve. When the pneumatic soft-seal butterfly valve is closed, the main control console controls the solenoid valve to close through an electrical signal, cuts off the compressed air from entering the pneumatic actuator, and the cylinder stops moving. If a double-acting pneumatic actuator is installed, the cylinder moves in the opposite direction under the force of the return spring in the cylinder to close the pneumatic butterfly valve. If a double-acting cylinder is installed, the valve stops in place. The double-acting cylinder is equipped with a two position five-way solenoid valve. If the pneumatic butterfly valve needs to be closed, the solenoid valve can be controlled to switch the air inlet and exhaust holes to close the valve. A handwheel device can be installed according to customer requirements. When necessary, the handwheel switch can be opened and closed to switch between pneumatic and manual operations.

Stainless Steel Pneumatic Actuated Flanged Butterfly Valve