Electric valve and pneumatic valve principle advantage
In fact, many Chinese companies for sewage treatment engineering of environmental protection equipment and water treatment is not very understanding, environment pollution is so serious now, many HuanBaoJie colleagues are committed to sustainable development for China’s environmental protection industry and the effort, so here are the basic knowledge of the environmental protection water treatment for everyone to do a simple spread, the following to parse the piping in the workshop production process, the principle of electric and pneumatic valves and their respective advantages.
Electric butterfly valve are usually composed of electric actuators and valves. Electric valve USES electric energy as power to drive the valve through the electric actuator to achieve the valve switching action. So as to achieve the purpose of switching pipeline medium. The electric valve action force distance is larger than the ordinary valve, the electric valve switch action speed can be adjusted, the structure is simple, easy to maintain, can be used to control the air, water, steam, all kinds of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow.
Pneumatic Motor Butterfly valve is driven by compressed air valve. Using compressed air driven actuators in combination of multiple sets of pneumatic piston movement and force to beam and the characteristics of the curve track, drive tubular spindle rotation, compressed air disks to each cylinder, changed the direction of gas in and out of position to change the direction of spindle rotation, according to the requirement of the load (valve) the required rotation torque, adjustable cylinder combination number, drives the work load (valve). Pneumatic valve can be used to control air, water, steam, all kinds of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow.
Analysis of electric valve and pneumatic valve principle advantages
Electric butterfly valve
Advantages of electric valve and pneumatic valve:
1: pneumatic valve for gas medium and small diameter liquid effect, low cost, easy maintenance. Disadvantages: affected by the fluctuation of air pressure, it is easy to be affected by the water content of air pressure in winter in the north, causing the transmission part to freeze and not work. General pneumatic than electric fast, electric are dual-purpose flashlight. And pneumatic to hand, gas dual-use price is higher.
2 Triple Eccentric Electric butterfly valve for liquid medium and large pipe diameter gas effect, not affected by the climate. Not affected by air pressure. Disadvantages: high cost, not good in wet environment.
3, slow action of electric valve electric valve can achieve explosion-proof brand is not many; Pneumatic valve action quickly, explosion – proof relative to electric bottom (key pneumatic valve with what accessories, with large brand accessories will be more expensive than electric valve).
4, the electric valve is used for some large pipe diameter, because the pneumatic valve is difficult to do, but the stability of the electric valve is not as slow as the pneumatic switch speed.