Plastic Solenoid Valve, 8 - 12V
12V plastic Solenoid valve, only one direction for the fluid.
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Control a water circuit using a 12V solenoid valve
Check the flow of the liquid using a flow of electron! A solenoid valve will be a great addition for gardening projects. It has two 1/2 inch fitting.
The valve is closed at rest, when a voltage of 12VDC is applied to both terminals, the valves opens and the water can push it to get through.
The design of the solenoid valve uses an internal seal, therefore, a minimum of pressure is required to activated it (0.02 Mpa or 3 PSI).
The liquid can also flow only in one direction (indicated by an arrow under the valve).
The solenoid valve has been tested under different DC voltages. It is possible to activate the valve from a voltage of 6VDC (but it is slower to open).
- Fitting: 1/2 inch.
- Operating pressure: 0.02 Mpa - 0.8 Mpa (0.8 Megapascal corresponds to 8 bar).
- Operating temperature: 1 ℃ - 75 ℃
- Response time (opening): ≤ 0.15 sec
- Response time (closing): ≤ 0.3 sec
- Operating voltage: 12V DC
(but also works up to 6 V DC... see table of current tensions below).
- Lifetime: ≥ 50 millions de cycles
- Weight: 120 gr
- Dimensions: 77mm x 57mm x 50mm
Here is a table that shows the different currents depending on the applied voltage.
Voltage -> Current
6V -> 160 mA
7V -> 190 mA
8V -> 220 mA
9V -> 240 mA
10V -> 270 mA
11V -> 300 mA
12V -> 320 mA
For a long activation period (30-35min) we recommend a supply voltage of 8V to limit the high overheating of the winding (minimum pressure of 1.5 Bar, thanks to Mr Smets)
We suggest to use of a TIP120 or a FET N-Channel power with a diode 1N4001 freewheeling to control this valve from a micro controller. A 9V power supply or 12V 1A will be enough to accomplish the expected task.
- Our tutorial on "Mini Hobbyist Engine kit" which puts into practice the STP16NF06 (FET N-Channel power). Simply replace the solenoid motor :-)
After, the use of a motor with a power MOSFET will be really..."trivial".