26
2023
-
05
Classification and use of common accessories for pneumatic valves
In the actual use of pneumatic valves, in order to improve the stability and efficiency of valve use, we often need to rely on some auxiliary work, which is the accessories of pneumatic valves. Generally speaking, common accessories of pneumatic valves include air filters, directional solenoid valves, limit switches, electrical positioners, etc. The assembly of three air source processing components, namely air filter, pressure reducing valve, and oil mist eliminator, in pneumatic technology is called a pneumatic triplet, which is used to purify and filter the air source entering the pneumatic instrument and reduce the pressure to the rated air supply pressure of the instrument, equivalent to the power transformer in the circuit.
The selection of pneumatic valve accessories is very important for users. Next, the editor will briefly introduce common types of pneumatic valve accessories, including:
1. Double acting pneumatic actuator: Two position control for valve opening and closing.
2. Spring return actuator: When the circuit air circuit is cut off or malfunctions, the valve automatically opens or closes.
3. Single electric control solenoid valve: the valve opens or closes when powered on, and closes or opens when powered off.
4. Dual electronic control solenoid valve: When one coil is powered on, the valve opens, and when the other coil is powered on, the valve closes, with a memory function.
5. Electrical locator: Adjust and control the medium flow of the valve based on the size of the current signal (standard 4-20mA).
6. Pneumatic positioner: adjusts and controls the medium flow rate of the valve based on the size of the air pressure signal (standard 0.02-0.1MPa).
7. Electrical converter: Converts current signals into air pressure signals and is used in conjunction with pneumatic positioners.
8. Limit switch feedback device: A signal that remotely transmits the switch position of a valve.
9. Manual operation mechanism: Automatic control can be manually operated in abnormal situations.
10. Air source treatment triple unit: including air pressure reducing valve, filter, oil mist device, which has the function of stabilizing, cleaning, and lubricating moving parts of the air source.
Relevant News
TEL：+86-18267588668 +86-13857598538
Add：107 Xingye Road, Fengqiao Town, Zhuji City, Zhejiang Province
E-mail：zhejiangyazhong@163.com
Online message
consultation
If you have any questions, please feel free to contact us and we will be happy to serve you！
© 2023 Zhejiang Yazhong Machinery Parts Manufacturing Co., Ltd. All rights reserved. Powered by www.300.cn SEO Business license