Brass Liquid Solenoid Valve

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12V - 1/2 NPS Control the flow of fluid using the flow of electrons! This liquid valve would make a great addition to your robotic gardening, aquarium, or pool project. There are two 1/2" (Nominal NPS) outlets. Normally, the valve is closed. When 12VDC i

Unlike the plastic solenoid valve, this one does not have a gasket, so there is no minimum pressure requirement.

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 12V 5A power adapter will do the job.

Voltage Current

6V 1.6 A

7V 1.86 A

8V 2.0 A

9V 2.3 A

10V 2.5 A

11V 2.7 A

12V 3 A

These solenoids are not rated for food safety by any official standards. However, they are made of cast brass, with a rubber gasket made of NBR (Nitrile Rubber) so it can be used with any fluid that will not damage or be damaged by the rubber gasket material.


1/2" Nominal NPS
Working Liquid Pressure: 0 Mpa - 1.0 Mpa (140 PSI)
Working Temperature: -5℃ - 80 ℃
Actuating voltage: 12VDC (but we found it would work down to 6V)
Actuating life: ≥ 50 million cycles
Weight: 1.7lbs
Dimensions: 105mm tall x 55mm wide x 65mm long

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