Electric pneumatic valve and electromagnetic valve is the main difference is introduced

solenoid pneumatic valve is electromagnetic coil after electrify producing magnetic attraction to overcome the pressure of the spring drive pneumatic valve core movement, is an electromagnetic coil, the structure is simple, cheap, can only achieve switch;
electropneumatic valve pneumatic valve stem is driven by motor, drive the pneumatic valve core movement, the electric pneumatic valve and points ( Close to snuff out the pneumatic valve and regulating valve.
dynamic valve is closed to snuff out the two type of work that is fully open and close, regulating pneumatic valve is installed in the above electric pneumatic valve positioner, through closed-loop adjustment to pneumatic valves on the dynamic stability in one place.
electropneumatic valve and solenoid pneumatic valve USES:
pneumatic valve, electromagnetic switch control for liquid and gas pipe line, is the control of the two DO. Commonly used in control of small pipes.
electropneumatic valve: for liquid, gas and wind system pipeline medium flow analog control, is the control of AI. At large in the control of pneumatic valves and wind system can also do two switch control with electric pneumatic valve.
: pneumatic valve can only be used as a switch, and is the DO control, can only be used for small pipe control, common in DN and the following pipe, up a little.
electropneumatic valve: can have AI feedback signal, can be controlled by the DO or AO, is seen in large pipe and wind pneumatic valve, etc.
and switch form:
solenoid pneumatic valve through the coil driver, only on or off, switch action when time is short.
electric pneumatic valve is commonly used in motor, need time to open or close action of analog, can do to adjust.
, nature of work:
solenoid pneumatic valve general circulation coefficient is very small, and the work pressure difference is very small. Such as average diameter than the diameter of the solenoid pneumatic valve flow coefficient of the electric pneumatic valve ball. Electromagnetic pneumatic valve driven by electromagnetic solenoid coil, more easily damaged by voltage surge. Equivalent to the role of the switch is on or off a role.
electropneumatic valve driver is commonly used motor, voltage impact resistance. Electromagnetic air valve is closed fast and fast, generally used in small flow rate and pressure, asked for a switch frequency big place electropneumatic valve and vice. Electropneumatic valve pneumatic valve can control the openings of the state is open, closed, half-open half closed, can control the medium inside the pipeline flow and solenoid pneumatic valve can not reach the requirements.
general power electromagnetic pneumatic valve can be reset, electropneumatic valve will need to add the function of reset device.
, suitable process:
solenoid pneumatic valve is suitable for some special technical requirements, such as leakage, fluid medium, such as special, more expensive.
electropneumatic valve is typically used to adjust, also has the switch quantity, such as: fan coil terminal.