Electric valve and pneumatic valve selection
In industrial control systems, electric valves and pneumatic valves are two common actuators. They are all used to control the flow of fluids, but their working principles and applicable environments are different.
First, the advantages of electric valve
1. The butterfly valve electric can be controlled remotely through electrical signals, facilitating automation and intelligent control.
2. High switching precision, can achieve accurate flow control.
3. The installation is relatively simple and does not require complex air source and gas pipe arrangement.
Second, the advantages of pneumatic valve
1.Pneumatic butterfly valve response speed is fast, suitable for the need for fast switching occasions.
2. The pneumatic valve has good stability and strong anti-interference ability in harsh environments.
3. Pneumatic valves use compressed air as a power source, which is more energy saving and environmental protection than electric valves.
3. Choose suggestions
1. Control mode
Select the appropriate control mode according to the requirements of the control system. If you need remote control or precise control, you can choose an electric valve; If you need to switch quickly or use in harsh environments, you can choose pneumatic ventilation butterfly valve.
2. Install the environment
Select the appropriate actuator type according to the characteristics of the installation environment. If the installation environment is more compact or space is limited, you can choose a smaller electric valve; If the installation environment is more spacious or needs to run continuously for a long time, you can choose a larger pneumatic vent butterfly valve.
3. Economic costs
Select the appropriate actuator type based on project budget and economic cost considerations. In general, the price of electric valves is relatively high, but it may be more economical for long-term use; The initial investment of pneumatic valves is lower, but the additional cost of air supply and gas pipe layout needs to be considered.
4. Maintenance
Select the appropriate actuator type according to the maintenance requirements of the equipment. The maintenance of the electric valve is relatively simple, and only requires regular cleaning and lubrication; Pneumatic damper valve needs to pay attention to the cleanliness of the air source and the tightness of the gas pipe to ensure the normal operation of the equipment.
