4 Way Solenoid Valves

4-way Solenoid valves have four or five pipe connections, commonly called ports:

• One pressure inlet
• Two cylinder ports providing pressure to the double-acting cylinder or actuator
• One or two outlets to exhaust pressure from the cylinders.

In a de-energized position, pressure is connected to one cylinder port; the other port is connected to the exhaust. In an energized position, pressure and exhaust are reversed.

Four ports means less piping is required. With five ports,independent speed controls can be mounted in each port