DESCRIPTION
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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 is applied to
the two terminals, the valve opens and water can flow. 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.
If you want smaller, more basic valve, we also carry a plastic version which does
have a minimum pressure requirement but has much lower power requirements!
Voltage
6V
7V
8V
9V
10V
11V
12V
Current
1.6 A
1.86 A
2.0 A
2.3 A
2.5 A
2.7 A
3A
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.
http://www.adafruit.com/products/996
7/24/2015