How to correctly select pneumatic butterfly valve accessories

First of all, let's first understand the main accessories of pneumatic butterfly valve. The accessories of pneumatic butterfly valve mainly include pneumatic ball valve positioner, pressure reducing valve, filter, lubricator, travel switch, solenoid valve, handwheel mechanism, etc. The accessories make up for the function and ensure the effect of valve operation. Add what is necessary, and don't add what is unnecessary. Adding accessories when unnecessary will increase the price and reduce reliability. Let's take a look at the method of selecting accessories for pneumatic butterfly valves:

1. Strict explosion-proof occasions, optional: electrical converter + pneumatic positioner. The solenoid valve should be selected with reliable products to prevent it from not operating when it is required to operate.

2. It is recommended that the handwheel mechanism is not necessary for important occasions to prevent human error. It should be provided by the manufacturer as much as possible and the device should be debugged well to ensure the reliability of the connection between the system and the assembly.

3. The main function of the positioner is to improve the output force and speed of action. When these functions are not needed, it can be omitted. It is not necessary to bring the positioner.

4. For fast response system, don't need valve to move fast, you can choose converter.