A wafer type pneumatic butterfly valve is a type of control valve used in various industrial applications to regulate the flow of fluids (liquid or gas) in a pipeline. lt is called a "wafer type' valve because it fits between two flanges without the need for additional hardware like nuts and bolts, making it more compact and easy to install.

 

 

Here are some key features and components of a wafer type pneumatic butterfly valve!

1. Butterfly Disc: The valve has a disc or plate mounted on a spindle that rotates inside the valve body. The disc can be actuated to open or close the flow path by turning the spindle.

2. Valve Body: The body is usually made of metal or other durable materials and houses the disc. The wafer type design allows the valve to be sandwiched between flanges, securing it in place when the flanges are tightened.

3. Actuator: The pneumatic actuator is responsible for operating the valve and can be controlled remotely using compressed air or gas. The actuator will open or close the valve based on the input signals received from the control system. pneumatic actuator can be  with limited switch , selonoid valve , air filter or positioner.

4. Sealing Mechanism: The valve is equipped with sealing elements (often made of rubber or elastomer) around the disc perimeter to provide a tight seal when the valve is closed, preventing any leakage.

When the actuator receives a signal to open the valve, it rotates the disc perpendicular to the flow direction, allowing the fluid to pass through the valve. When the actuator receives a signal to close the valve, it rotates the disc back to its original position, blocking the flow.

 

The acceptable directions of installation butterfly valve is Horizontal and perpendicular. 

We do not recommend mounting with vertical downward direction.

 

 

Wafer type pneumatic butterfly valves are widely used in industries such as water treatment. HVAC systems, chemical processing, power generation, and many others, due to their compact design, quick actuation, and reliable performance. However, it's important to choose the right size, material, and actuation system based on the specific application requirements.

 

 

 

 

 

 

 

 

 

 

 

http://www.drtvalve.com/