Pneumatic butterfly valve is an automatic valve that can be used to help your industrial project achieve the goal of automatic control. Pneumatic butterfly valves have a very wide range of applications and can be used in water treatment equipment, dams, shipbuilding, paper and pulp, food processing, wine making project and more.
There are many styles of pneumatic butterfly valves. In this article, we will introduce you to 3 guidelines to help you choose the right valve.
1. Actuator Style
Pneumatic automation actuators are divided into single-acting and double-acting types.
The double acting type actuator is air to open, air to close. The advantage is that the switching speed is extremely fast and the cost is low.
The spring return type actuator is air to open and it will auto return once the air is interrupted. The advantage is safety and explosion-proof.
You can choose a suitable executor according to your project requirements to make your project run more stably.
2. Torque Range
Torque is an important factor in determining whether the valve can be opened or closed normally. Select the proper torque range for the valve to function properly.
The torque range of AT series actuators is 5.7Nm to 4678Nm
The torque range of AW series actuators is 185Nm to 157,300Nm
The torque range of Scotch yoke type actuators is 500Nm to 40,000Nm
You can tell us the size, material and working pressure of the valve, then we will help to select a suitable model for you.
3. Valve Type
There are many types of butterfly valves that can be used in various types of pipelines.
According to the connection method, butterfly valves can be divided into wafer type, lug type, flange type and tri-clamp type to meet your pipeline’s requirements.
According to the material, butterfly valve can be divided into stainless steel butterfly valve, plastic butterfly valve, carbon steel butterfly valve and cast iron butterfly valve. A variety of materials are available for you to choose from to meet the temperature or corrosive requirements of your medium.
According to the material of the seal, it can be divided into soft sealing butterfly valve and hard sealing butterfly valve.
If you have any doubt about selecting pneumatic actuated butterfly valves, feel free to consult us at sales@covnavalve.com. We are happy to help to solve it.
Post time: Feb-14-2022