Note one For pilot-operated solenoid valves, it is necessary to check whether the pressure difference in the pipeline is too small. If the pressure difference is too small, the solenoid valve cannot work normally. In this case, a direct-acting solenoid valve is required. And the pressure difference is too large, far exceeding the design value of the solenoid valve, and it cannot work normally, so a high-pressure sol
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Solenoid valve is an industrial equipment controlled by electromagnetic, which adjusts the direction, flow, speed and other parameters of the medium in the industrial control system. When the solenoid valve is not powered on, the valve needle blocks the passage of the valve body under the action of the spring, and the solenoid valve is in the cut-off state. When the coil is powered on, the coil generates a magneti
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Solenoid valve is an automatic basic component used to control fluids. It belongs to the actuator and is not limited to hydraulic and pneumatic. Different solenoid valves play a role in different positions of the control system, the most commonly used are check valves, safety valves, directional control valves, speed control valves, etc. In principle, solenoid valves are divided into three categories: direct-actin
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How to choose the true actuators 1. Key Considerations for Actuator Selection ①Reliability; ②Economy; ③Smooth action and sufficient output torque; ④Simple structure and easy maintenance. 2. Comparison of the selection of electric actuators and pneumatic actuators (1) The pneumatic actuator is simple and reliable The poor reliability of old-fashioned electric actuators was its consistent weakness in the pa
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1. Economical There are many solenoid valves that can be used in general. In the process of selection, the most economical product should be selected, but it must be economical on the basis of safety, application and reliability. Economy is not only the price of the product, but also its function and quality, as well as the cost of installation, maintenance and other accessories. More importantly, the cost of a so
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1. External leakage is blocked, internal leakage is easy to control, and it is safe to use Internal and external leaks are elements that endanger safety. Other automatic control valves usually extend the valve stem, and the rotation or movement of the valve core is controlled by electric, pneumatic and hydraulic actuators. All this needs to solve the problem of external leakage of the dynamic seal of the long-term a
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