The Zeetork ZLV series NAMUR and Non-NAMUR solenoid valves are developed and produced by our team utilizing cutting-edge air control technology along with our proprietary patent technology. Featuring a cartridge structure, the ZLV series valves ensure a continuous self-cleaning mechanism during each position shift, allowing them to achieve over one million cycles without issues.
The difference between 5/2 and 3/2 solenoid valves mainly lies in their port and position configuration, which determines how they control airflow in pneumatic systems.
| Features | 3/2 Solenoid Valve (Three-Port, Two-Position) | 5/2 Solenoid Valve (Five-Port, Two-Position) |
|---|---|---|
| Key Features |
• Ports: 3 (Inlet, Outlet, Exhaust) • Positions: 2 (Open or Closed) • Function: Controls single-acting actuators or general air flow. • Can be Normally Closed (NC) or Normally Open (NO). |
• Ports: 5 (1 inlet, 2 outlets to cylinder ports, 2 exhausts) • Positions: 2 (Direct air to either side of a double-acting cylinder) • Often used with double-acting actuators. |
| Typical Use |
• Operating a single-acting cylinder • Pilot signals • Air blow-off applications |
• Controlling double-acting pneumatic actuators or cylinders • Reversing actuator motion (extend/retract) |
| Working |
• NC Type: When coil is not energized → air is blocked, outlet port vents. • When coil is energized → air flows from inlet to outlet. |
• In one position: Air goes to Port A, Port B exhausts. • In the other: Air goes to Port B, Port A exhausts. • Operated via single or double solenoid (spring return or bistable). |
