T-Shirt cannon AC problem

[Peter Matteson]

Originally Posted by KGood

Our team is trying to make a mounted t-shirt launcher, but we're running into problems with the sprinkler head we're using. We want to mount it to the robot and use the power distribution board but that uses DC, and the sprinkler head requires AC.

So, my question is: If we use 24v of DC from the power distribution board, is there any possible harm that come as a result? The sprinkler head has no circuitry...it's basically just a magnetic release valve, but I wanted to be sure.

Thanks!

Yes there are potential problems. On a project at work we were accidentally supplied 24 VDC valves in place of the 24 VAC valves we ordered, BTW 24 VAC is standard for HVAC applications. They were not caught at recieving inspection. We powered the valves on and all they did was chatter until the seats failed.

You should either use a transformer/inverter to correct the voltage to AC or get a new solenoid. You might be able to purchase and identical DC coil from the manufacturer.