What are the differences between the electric pneumatic valve and solenoid pneumatic valve and differences

solenoid pneumatic valve using the electromagnetic principle, the electricity produced by the solenoid coil electromagnetic attraction guide pneumatic valve core movement, the control mode to DO digital signal control, single solenoid pneumatic valve structure, the principle of simple, low price, and only to switch control, pneumatic valve is suitable for use in diameter smaller pipe.
electric pneumatic valve drive device for reversible electric motor, driven by the motor starts to rotate a certain time of pneumatic control valve, pneumatic valve core using AI analog signal control, can be adjusted to the pipeline medium flow, in particular the pipe can also be converted to a digital signal control in the environment.
solenoid pneumatic valve normally installed in small diameter pipe, pneumatic valve is suitable for fast, frequent opening and closing of small diameter pipeline. Design of small circulation, pneumatic valve pressure is low. Solenoid pneumatic valve driven by electromagnetic coil suction pneumatic valve opening and closing, simple and effective, and the electromagnetic solenoid coil will be affected by voltage change, easy to damage, shorter working hours. Solenoid pneumatic valve, pneumatic valve is similar to the gate open and close of pneumatic valve only two functions, the pipeline medium flow cannot be regulated.
electropneumatic valve can be used in large diameter pipe, is a greater scope. Electropneumatic valve for two-way motor as pneumatic drive valve parts, with the rotation of the motor drive pneumatic valve opening and closing, the degree of the opening and closing can be adjust, can finish half of pneumatic valve closed operation, control medium flow.
electropneumatic valve and solenoid pneumatic valve applicable scope:
pneumatic valve has excellent electromagnetic leakage protection performance, rapid opening and closing, small power, suitable for some corrosion, toxic chemical substances such as the pipe used as cut off the globe.
electropneumatic valve most used in pipe flow, the regulation of normal installed at the outlet of air cooling pipe, can also be used in liquid pipelines, in the production of canned drinks pipe and sewage pipe, etc. It is widely used in pipeline.