Plastic Water Solenoid Valve - 12V - 1/2" Nominal

The valve has a gasket arrangement inside, so there is a minimum pressure requirement of 0.02 Mpa (3 PSI). Also, liquid can only flow one direction.

We tried this solenoid at various DC voltages and found we could actuate it down at 6VDC (although it was a little slower to open). Here is the current draw table for various voltages. We suggest a TIP120 or N-Channel power FET with a 1N4001 kickback diode to drive this from a microcontroller pin. For a power supply, our 9V 1A or 12V 1A power adapters will do the job.

If you want a beefier water valve, we also carry a brass version which does not have a minimum pressure requirement and can be used with liquid flow in either direction.

Voltage Current

6V 160 mA

7V 190 mA

8V 220 mA

9V 240 mA

10V 270 mA

11V 300 mA

12V 320 mA

These solenoids are not rated for food safety or use with anything but water.

1/2" Nominal NPS
Working Pressure: 0.02 Mpa - 0.8 Mpa
Working Temperature: 1 ℃ - 75 ℃
Response time (open): ≤ 0.15 sec
Response time (close): ≤ 0.3 sec
Actuating voltage: 12VDC (but we found it would work down to 6V)
Actuating life: ≥ 50 million cycles
Weight: 4.3 oz
Dimensions: 3" x 2.25" x 2"