1.What Is Pneumatic Ball Valve And Electric Ball Valve ?
Pneumatic ball valve is powered by the air source to drive the ball valve to open and close, so as to achieve the switching and regulating action of the media, so as to achieve the purpose of the pipeline media switching or regulating automation device.
Pneumatic ball valve is a ball valve with a pneumatic actuator. Powered by the air source to drive the ball valve to open and close, so as to achieve the switch, adjust the action of the media, so as to achieve the purpose of the pipeline media switch or regulation automation device. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, gas source processing triplets, limit switches, positioners, control boxes, etc.
Pneumatic ball valve specific classification are: stainless steel pneumatic ball valve, plastic pneumatic ball valve, sanitary pneumatic ball valve, carbon steel pneumatic ball valve, two-way pneumatic ball valve, three-way pneumatic ball valve, etc.
Electric ball valve usually consists of electric actuator and ball valve connected together, after installation and commissioning, it becomes electric ball valve. Electric ball valve uses electric energy as the power to connect the electric actuator to drive the ball valve to realize the switching and regulating action of the ball valve, so as to achieve the purpose of switching or regulating the pipeline medium.
The electric ball valve uses electric energy as the power to turn on the electric actuator to drive the ball valve to realize the switching and regulating action of the ball valve, so as to achieve the purpose of switching or regulating the pipeline medium.
The specific classification of electric ball valves are: electric plastic ball valves, electric sanitary ball valves, electric two-way and electric three-way ball valves, etc.
2. The Difference Between Pneumatic Ball Valve And Electric Ball Valve
· Time Difference
Pneumatic valve switch action is fast, 3-5 seconds to open the switch. The electric valve is relatively slow to switch, generally requires 15-30 seconds to switch, COVNA pneumatic ball valve corresponding moment is faster, the switch moment 3 seconds
· Working Conditions
Pneumatic ball valve switch action process because of the gas itself buffer characteristics, not easy to damage due to jamming, but must have a gas source, and its control system is also more complex than the electric valve. Pneumatic valve actuator power source for the gas source, gas source from the air compressor, many high control requirements of the plant specifically for pneumatic instrumentation control elements set up compressed air station.
Electric valve remote control is convenient, only need power supply does not need air source.
· Safety
The essence of the difference between electric and pneumatic valves is the use of different driving devices, that is, the actuator, and the control valve itself is no difference. With different actuators is mainly the requirements of the working conditions, such as chemical and other requirements Explosion-proof occasions, the most used pneumatic valves, because of the high safety requirements, and cheap, with intelligent positioner can be on the bus, the control method is also simple.
3. Pneumatic Ball Valve Or Electric Ball Valve?
Pneumatic ball valve opening and closing speed can be adjusted, simple structure, easy to protect, due to the cushioning characteristics of the gas itself, it is not easy to be damaged due to jamming during the action process, but there must be air source ventilation.
The electric ball valve is driven by electricity, which is not suitable for occasions with explosion-proof requirements. When there is a large amount of flammable gas dispersed in the surrounding environment, it can only rely on pneumatics. Compared with the pneumatic ball valve, the electric ball valve has a more accurate opening and closing degree, and the pneumatic valve is powered by air.
The electric ball valve is powered by electricity converted into electromagnetic energy, which can implement remote precise control, while the pneumatic ball valve needs to add various accessories to complete the remote control, and the accessories are not cheap.
In general, the functions of electric ball valves and pneumatic ball valves are basically the same. However, pneumatic ball valves definitely need an air source. Electric ball valves can only be selected in places where there is no air source. If the air source is not suitable for some equipment, only electric ball valve can be selected.
Generally speaking, the price of pneumatic ball valve is cheaper than that of electric ball valve, and because the service life of pneumatic actuator is longer than that of electric actuator, the service life will be longer, but the opening and closing accuracy is not as high as that of electric ball valve.
So if you choose to use pneumatic ball valve and electric ball valve, you should choose according to your current working environment and budget cost. If you have questions or are interested in this aspect, please contact us to get more satisfactory valve options.
Post time: Nov-04-2022