WENK Pneumatic 2W Series Pilot-operated Normally Closed Solenoid Water Valve

1. Product Introduction

The 2W Series Pilot-Operated Normally Closed Solenoid Water Valve is a high-performance electromagnetic control valve developed by WENK Pneumatic, designed specifically for liquid control applications requiring higher flow rates. Featuring a durable brass body with a black solenoid coil, this product ensures reliable performance in various application environments. The 2W Series Pilot-Operated Solenoid Valve adopts a pilot-operated structure, remaining closed when de-energized and opening when energized, providing an ideal automated flow management solution for industrial, commercial, and residential applications.

Main features:

• Durable brass body design
• Reliable black solenoid coil
• Pilot-operated structure suitable for high flow applications
• Normally closed design, safe and reliable with power off
• Suitable for various liquid control systems

3. Usage Methods

3.1 Pre-operation Check

1. Confirm that the power supply voltage matches the solenoid water valve rated voltage
2. Check that all connections are firm and free from leakage
3. Test the on/off function of the solenoid water valve to ensure normal operation
4. Confirm that the liquid is clean and free from impurities that may cause blockage

3.2 Basic Operation

1. Turn on the power, the solenoid coil is energized, the pilot valve opens, and the main valve opens under pressure difference, allowing liquid to pass through
2. Turn off the power, the solenoid coil is de-energized, the pilot valve closes, and the main valve closes under spring force, stopping liquid flow
3. Control the liquid flow by controlling the on/off of the power supply according to system requirements

3.3 Operation Notes

1. Avoid frequent switching of the solenoid water valve, which may shorten service life
2. Ensure stable power supply voltage, avoid voltage fluctuations
3. If abnormal sounds, overheating, or leakage are found, stop using immediately and inspect
4. When not in use for a long time, it is recommended to turn off the power supply and liquid source

5. Troubleshooting

1. Valve does not operate

   • Power not connected: Check power connection
   • Coil damaged: Replace solenoid coil
   • Internal jamming: Clean internal parts

2. Valve cannot close

   • Seal damage: Replace seals
   • Foreign matter jamming: Clean internal flow passages
   • Coil not fully de-energized: Check control circuit

3. Leakage

   • Loose connections: Reconnect and reinforce
   • Seal wear: Replace seals
   • Valve body damage: Contact supplier for repair or replacement

4. Coil overheating

   • Abnormal power supply voltage: Check and adjust power supply voltage
   • Coil aging: Replace solenoid coil
   • Ambient temperature too high: Improve installation environment