Question:

Solenoid Valve Control?

Hi, I'd like to control a three way solenoid valve like this one:understanding is that an electric current through the solenoid will cause the valve to let air one way while no electric current will have the air flow the other. Is there a piece of equipment like a control box (that can communicate w/ a computer) that would allow me to control the solenoid valve like this? and if so, where would i be able to find something like this....i've googled but no success. I eventually want to control the valve from a computer. Thanks

Answer:

www.okorder /
See okorder /
There are dozens of valves on that link, you have to be more specific. Most valves switch between open/close with application / removal of electrical power. Restricting air flow to one direction is done via a check valve, not something that requires power. Air flow will be from the direction of higher pressure to lower pressure. A valve can stop that flow, it cannot reverse it. You can control the valve with a relay, and that with relay driver IC such as a ULN2003, and that driven by a computer. Depending on the power levels, you may be able to drive the relay directly from the relay driver. .

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