How Solenoid Valve works | SOV | 3/2 ,4/2,5/2,2/2 |

Table of Contents

We will learn how solenoid valve works. we will learn 2 way solenoid, 3 way solenoid, 4 way and 5 way solenoid working. we will also learn operation of solenoid valve.
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How 2 Way solenoid valve works? | How 2/2 solenoid valve works?

2/2 Solenoid valve also known as 2 way solenoid valve or 2 way SOV or 2/2 SOV.

Two way or 2/2 SOV have 2 ports.
Two way solenoid used only for on/off control action like draining, sample handling.
One port for inlet and one port for outlet.
Hook up inlet/outlet port from process.

Power Off:- When solenoid valve is DE-energized input will not throw to output.

How 3 Way solenoid valve works? | How 3/2 solenoid valve works?

3/2 Solenoid valve also known as 3 way solenoid valve or 3 way SOV or 3/2 SOV.

3/2 solenoid valve have 3 ports. One Input, One output and One Exhaust.
This type SOV use to operate single acting actuator.
One port for Input, One port for output and One port for Exhaust.
Hook up inlet/outlet port from process.

Power off/ De-energized:- When the power off input will not connect to output but output will connect to exhaust to release holdup pressure.

How 4 Way solenoid valve work? | How 4/2 solenoid valve work?

4/2 solenoid valve also known as 4 way solenoid valve or 4 way SOV or 4/2 SOV.

It consist 4 port.
One input , 2 nos. Output and one Exhaust.
This type SOV use to operate double acting actuator.
Hook up Inlet port to Input and both output to double acting final element.

Power off/ De-energized:- When the power off input will connect to output2 and output1 will connect to exhaust to release holdup pressure in other side.

Power On/Energized:- When the power On input will connect to output1 and output2 will connect to exhaust to release holdup pressure in other side.

How 5/2 Solenoid valve work?

5/2 solenoid valve and 4/2 solenid valve working are same.

It consist 5 port.
One input , 2 nos. Output and 2 Nos. Exhaust.
This type SOV use to operate double acting actuator.
Hook up Inlet port to Input and both output to double acting final element.

Power off/ De-energized:- When the power off input will connect to output2 and output1 will connect to exhaust1 to release holdup pressure in other side.