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Solenoid Valve Supplier
inquiry@ato.com.cnDifference Between Solenoid Valve and Pneumatic Valve
The pnematic valve and solenoid valve are both widely used to control
medium flowing through or cutoff in the pipelines, and they are widely
applied in the various industrial areas. Are there any differences
between them? Let's go on and find some differences.
A pneumatic valve uses compressed air to control the diaphragm, bellows or cylinder, and by controlling the diaphragm, bellows or cylinder, to drive the valve stem to push the valve core to close and open. The diaphragm type pneumatic valve is multi-port air intake. It uses spring to reset and diaphragm to drive the stem move, and the valve stem connects the valve core to open or close. The bellows type pneumatic valve has a single port air intake. The cylinder type pneumatic valve can be single port or double port air intake. The push rod of the cylinder connects the stem, and the stem connects the spool to make it open or close.
The pneumatic valves are divided into two kinds: air-closed and air-opened. In flammable and explosive situations, the safety of pneumatic valves is higher than that of solenoid valves, because it has no problem of accidental ignition. Generally, the pneumatic valves which are used to control higher fluid pressure or have larger diameter also have pilot valves inside, which can amplify the force of the on-off valve.
A solenoid valve is a device that controls the opening and closing of liquid, gas and
steam by energizing and de-energizing the coil. After power on, the
solenoid valve move. After the power off, the spring or the pressure of
fluid inside is used to reset. Generally the solenoid valve is marked
with the direction of fluid, and it can not be installed reversely.
Solenoid valves are fast to close and open, and are generally used in
small diameter pipelines.
The solenoid valves are divided into two types: normally open (the valve close when power on) and normally closed (the valve open when power on). This is mainly considered from a safety point of view. In some production processes, when the power is suddenly cut off, it is necessary to turn off the medium (such as gas), while in other control processes, it may be required to turn on after the power is suddenly cut off. Its power supply voltage is AC and DC. Solenoid valves have many applications in industrial automation control and household appliances (washing machines, air conditioners, water heaters, IC water meters).
A pneumatic valve uses compressed air to control the diaphragm, bellows or cylinder, and by controlling the diaphragm, bellows or cylinder, to drive the valve stem to push the valve core to close and open. The diaphragm type pneumatic valve is multi-port air intake. It uses spring to reset and diaphragm to drive the stem move, and the valve stem connects the valve core to open or close. The bellows type pneumatic valve has a single port air intake. The cylinder type pneumatic valve can be single port or double port air intake. The push rod of the cylinder connects the stem, and the stem connects the spool to make it open or close.
The pneumatic valves are divided into two kinds: air-closed and air-opened. In flammable and explosive situations, the safety of pneumatic valves is higher than that of solenoid valves, because it has no problem of accidental ignition. Generally, the pneumatic valves which are used to control higher fluid pressure or have larger diameter also have pilot valves inside, which can amplify the force of the on-off valve.
The solenoid valves are divided into two types: normally open (the valve close when power on) and normally closed (the valve open when power on). This is mainly considered from a safety point of view. In some production processes, when the power is suddenly cut off, it is necessary to turn off the medium (such as gas), while in other control processes, it may be required to turn on after the power is suddenly cut off. Its power supply voltage is AC and DC. Solenoid valves have many applications in industrial automation control and household appliances (washing machines, air conditioners, water heaters, IC water meters).
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