Comparative analysis of hydraulic butterfly valve and other control valves
The control valve is one of the indispensable components in the industrial automation system, its role is to control the pipeline flow or pressure, and convert it into electrical or mechanical signal output. Different types of control valves have differences in working principle, scope of application and performance. In order to better choose the right control valve, the following will compare and analyze the hydraulic butterfly valve with other control valves.
1. Hydraulic butterfly valve
The hydraulic butterfly valve is a kind of control valve that can control the opening of the butterfly valve by hydraulic action. It has the characteristics of simple structure, light weight, fast opening and closing, small flow resistance, good sealing performance and high reliability, so that it has been widely used in some fields. However, the hydraulic butterfly valve is not suitable for high-precision flow and pressure control; When the medium viscosity is large, high temperature, high pressure and other environments, it is easy to appear insensitive opening and closing, leakage and other problems.
2. Electric actuator control valve
The electric actuator control valve is a control valve that controls the opening of the valve through the electric actuator, which is suitable for the occasions where the flow rate and pressure accuracy are required to be higher, the medium viscosity is large, and the working temperature is high. The electric actuator control valve has the characteristics of fast response speed, high precision, long service life and remote automatic control. However, the electric actuator control valve cannot be compared with the hydraulic butterfly valve in terms of opening and closing speed, and the requirements for the power supply are higher, and the original position cannot be maintained when the power is cut off.
3. Pneumatic actuator control valve
The pneumatic actuator control valve is a control valve that controls the opening of the valve through the pneumatic actuator. It has the advantages of simple structure, high reliability and wide application range. The pneumatic actuator control valve has fast response speed, large opening and closing power, and high opening accuracy of the valve, but it needs a supporting air source system, and is susceptible to pressure fluctuations, and is not suitable for the control of high pressure and high viscosity media.
4. Hydraulic actuator control valve
The hydraulic actuator control valve is a control valve that controls the opening of the valve through the hydraulic actuator, which is suitable for occasions where the accuracy is required, the medium temperature and pressure change little, and the pipeline flow fluctuation is small. The hydraulic actuator control valve has fast response speed and large opening and closing force, but it needs supporting liquid power source and is easily affected by hydraulic fluctuation.
In summary, the hydraulic butterfly valve, the electric actuator control valve, the pneumatic actuator control valve and the hydraulic actuator control valve have their own characteristics, and the most suitable control valve should be selected according to the actual working situation.
Post time: Jun-20-2023
