Accumulator Manufacturers: What Are the Main Differences Between Solenoid Valves and Electric Valves?

The difference between electric valves and solenoid valves from Zhejiang Bladder Accumulator Company is as follows: After the solenoid valve's electromagnetic coil is energized, it generates magnetic attraction to overcome the spring pressure and actuate the valve body. The electromagnetic coil has a simple structure and a low price, but it can only achieve on/off control. The electric valve is driven by an electric motor to move the valve stem, causing the valve core to move. Therefore, the electric valve, which is a type of stop valve, has a dual function of fully open and fully close. For hydraulic bladder accumulator wholesale, a regulating valve is equipped with an electric valve positioner, which uses closed-loop control to make the valve dynamically stable at a certain position.

Comparison of the use of electric valves and solenoid valves in the workspace. Solenoid valve: used for open/close control of liquid and gas pipelines, with two DO (Digital Output) controls. It is usually used for small pipeline control. Electric valve: used for analog control (AI) of the medium flow in liquid, gas, and air system pipelines. Even for large valves and air system control, two-position on/off control can be performed using electric valves. Solenoid valve: can only be used as a switch quantity. DO control is only suitable for small pipeline control, typically DN50 and below. Electric valve: has an AI (Analog Input) feedback signal and can be controlled via DO and AO (Analog Output). Suitable for larger pipelines and dampers, etc.

Switching form: The solenoid valve is driven by a coil and can only be opened or closed. The electric valve is usually driven by a motor, and the time required to complete the open or close operation is longer. It can be adjusted as predetermined.

Working characteristics: The general flow coefficient of solenoid valves is relatively high, and the working pressure difference is very small. For example, the flow coefficient of a general 25-caliber solenoid valve is smaller than that of a 15-caliber electric ball valve from a Zhejiang bladder accumulator company. The solenoid valve is driven by an electromagnetic coil, which is easily damaged by voltage surges. It is equivalent to switch work.