3 Way Solenoid Valve Diagram. So it switches between two different circuits. 3 way and 4 way ball valves can contain additional detail that defines the type of ball drilling which is either a t or l port ball.
If a service valve is installed ahead of a solenoid valve it should be closed during service proce dures. Figure 4 shows an example of a 3 way solenoid valve. The spring symbol defines the at rest position of the solenoid valve.
For multi port valves such as 3 way and 4 way the structure of the symbol is similar having a triangle to represent each port or way.
4 and 5 ported valves flow diagrams de energized press. So it switches between two different circuits. If you want to save tqa quarter turn electric. Process control valve as shown in figure 3.