Choosing the Correct Solenoid Valve for Optimal Actuator Performance

1. Valve Type

• Single Solenoid (Spring-Return) - For fail-safe operation (e.g., spring closes valve on power loss)
• Double Solenoid (Dual-Coil) - Maintains position during power loss (no spring return)

2. Port Size & Flow Rate

• Match the valve's port size (e.g., 1/4", 3/8") to the actuator's air inlet
• Ensure sufficient flow (Cv value) for fast actuator response

3. Voltage & Power Supply

• Common voltages: 12V DC, 24V DC, 110V AC, 220V AC
• Select AC or DC based on control system compatibility

4. Pressure Rating

• Must support the actuator's operating pressure (typically 4-8 bar)

5. Environmental Conditions

• Explosion-proof (ATEX/IECEx) for hazardous areas
• IP65/IP67 for dust/water resistance

6. Actuator Compatibility

• Double-acting actuator → 5/2 or 5/3-way valve
• Spring-return actuator → 3/2-way valve

7. Additional Features

• Manual override for emergencies
• Low-power consumption for energy efficiency

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