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There are many types of solenoid valves. According to the number of ports:
Five-way solenoid valve series, series, series, series,, series, series, series, series, series,, series solenoid valve The five-way solenoid valve has one inlet, two outlets and two Exhaust port, the passage is rr, Brr (that is, air intake through port, exhaust through port B) or rrB, rr. The five-way solenoid valve is generally used to control the reciprocating direction of the double-acting cylinder.
Imported solenoid valve solenoid valve normally open type and normally closed type of solenoid valve
The open and closed solenoid valves are divided into normally open type and normally closed type. When there is no control signal, the same is the normal-on type (generally expressed by .), and the disconnection is the normally-off type (generally expressed by .). If the flow direction in the channel is not limited, it is called an on-off valve. Normally-on and normally-off solenoid valves are not allowed to flow in the reverse direction, because reverse pressure will cause the one-way sealing ring to become unsealed or fail to seal.
The action mode of solenoid valve
According to the action mode, solenoid valve can be divided into direct-acting type and pilot type. What is a direct-acting solenoid valve? Direct-acting solenoid valves directly rely on electromagnetic force to reverse the direction of the valve core. The direct-acting solenoid valve has a small diameter and is often used for small flow control or as an electromagnetic pilot valve for pilot-operated solenoid valves. The pilot solenoid valve consists of a pilot valve and a main valve. Relying on the air pressure output by the pilot valve, the main valve core is pushed to change direction by controlling the piston and so on. Most solenoid valves with large diameters are pilot-operated solenoid valves. Pilot solenoid valves are divided into internal pilot solenoid valves and external pilot solenoid valves.
Wiring methods of solenoid valves
There are various wiring methods for solenoid valves, including direct outlet methods, such as, outlet type with terminal block, conduit terminal block type, shaped socket type, shaped socket type, etc. There are also several wiring methods and so on.
When the electromagnetic coil of the solenoid valve is energized, the static iron core generates electromagnetic attraction to the moving iron core, and the electromagnetic force is used to switch the valve core to change the direction of gas flow, thereby achieving on-off, reversal, etc. Solenoid valves are easy to realize electrical joint control and complex control, and can achieve long-distance operation. Therefore, solenoid valves are currently used more and more widely.
Imported solenoid valve solenoid valve