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2 WAYS

The solenoid valves have two ports (one inlet, one outlet) and only one orifice (seat) allowing the fluid control.

     a.  1 port inlet fluid                               P

          1 port outlet fluid                             A

 

 

 

 

 

 

 

 

 

 

 

 

Example of solenoid valve de-energized to stop or energized to allow a flow of pressurized fluid

3 WAYS

These solenoid valves have three ports (one inlet, one outlet and one exhaust) and two orifices (seats) allowing the fluid control.

 

     a.  1 port inlet fluid                             P

          1 port outlet fluid                           A

          1 port exhaust fluid                       R

Typical application: to operate a single acting cylinder

 

     b.  1 port inlet fluid                             P

          2 port outlet fluid                        A1, A2

Typical application: to select or divert flow

 

     c.  2 port inlet fluid                          P1, P2

          1 port outlet fluid                           A

Typical application: to mix two fluids

 

 

 

 

 

 

 

 

 

 

 

Example of solenoid valve operating a single acting cylinder

 

4 & 5 WAYS

This solenoid valve is the functional combination of two 3 way valves. It includes generally 4 or 5 connection ports according to its design. The term 4 way or 5 way refers to the number of ports.

 

     a.  1 port inlet fluid                             P

          2 ports are the outlet                   A1, A2

          1 or 2 ports are the exhaust        R1, R2