What are the selection conditions of electric butterfly valve and pneumatic butterfly valve?
Electric butterfly valve has the advantages and uses
Electric butterfly valve is a very common pipeline flow regulation device, widely used, involved in many fields, such as the regulation of water flow in the reservoir dam of hydraulic power plant, industrial fluid flow regulation in the factory, etc., the following take you to understand the characteristics and advantages of electric butterfly valve.
1, good sealing
Whether the sealing is good is very important for the choice of valve, after all, the role of the electric butterfly valve is used to adjust the fluid flow in time, and it is faced with high temperature and high pressure when working, so if the sealing is not good, it will lead to fluid leakage and cannot guarantee accurate flow regulation. The electric butterfly valve has a special sealing system, so it has good sealing in the ultra-low temperature to high temperature range, that is, the sealing of the electric butterfly valve is not affected by temperature, and the electric adjustment valve switch is very convenient.
2, zero leakage
The most commendable is the sealing of the electric butterfly valve, the valve stem shaft seal is a very sealing ring, the sealing ring is made of graphite pressed, the sealing ring and the butterfly plate of the electric butterfly valve will not be card, so the sealing is very good, zero leakage fire safety electric butterfly valve is a priority choice for many customers.
3, convenient adjustment and control
Electric butterfly valve is a device used to control the flow of fluid, in addition to the transport of regulating fluid, mud and other substances with a certain viscosity can also be transported, and the liquid accumulated in the pipeline is less, electric opening and closing fast and easy.
There are many types of valves used in industry, but the purchase of a truly desirable valve still needs some thought, electric butterfly valve has a wide range of application, strong operability, excellent sealing, and is a very many types of industrial electric valves.
Pneumatic butterfly valve has the advantages and uses
The pneumatic butterfly valve is composed of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve is a pneumatic valve that is opened and closed with the circular butterfly plate rotating with the valve stem to realize the enabling action. It is mainly used as a cut-off valve, and can also be designed to have the function of regulating or segment valve and regulating. The butterfly valve is used more and more in low pressure large and medium diameter pipelines. Categories: stainless steel pneumatic butterfly valve, hard seal pneumatic butterfly valve, soft seal pneumatic butterfly valve, carbon steel pneumatic butterfly valve. The main advantages of the pneumatic butterfly valve are simple structure, small size and light weight, low cost, the characteristics of the pneumatic butterfly valve are especially significant, installed in the high-altitude tunnel, convenient operation through the two-position five-way solenoid valve control, and can also adjust the flow medium.
The powder system of the pneumatic butterfly valve, there are other factors that need to be taken into account, such as: can not let the material from above into the car directly to the valve plate (this impact force will also make the valve can not be closed tightly), and the static pressure of the material should not exceed the design pressure of the pneumatic butterfly valve, and so on.
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