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Topic: Arduino + 24V Pump + 24V Solenoid Valve  (Read 239 times) previous topic - next topic


Jun 08, 2019, 07:36 pm Last Edit: Jun 08, 2019, 07:57 pm by quiksilver_m
I am trying to find the best way possible to drive my 24 V DC Pump and 24V Solenoid via Arduino. Basically, Arduino needs to start and stop Motor and Solenoid simultaneously. 

I was wondering if I can use a relay for the purpose. The Pump comes with an AC adaptor and I can perhaps put the pump and solenoid in parallel so they can share the same 24 Volatage coming out of adaptor.

Is thiis OK ? Do I need to use a flyback diode as well ?

The other alternatives are to use MOSFET but I am not too sure of the conneection diiagram.

Another way would be -
1. Have two relays, 1 each for Solenoid and Pump.
2. Buy another 24 V Adaptor and drive both the relays LOW or HIGH based on the same shared HIGH\LOW sensor signal

I would ideally like the cheapest circuit but which keeps everything safe and running.

Any help is  appreciated. 


Jun 09, 2019, 01:39 am Last Edit: Jun 09, 2019, 01:42 am by JCA79B
Let's see, you have relays with unknown coil voltage and contacts with unknown current handling capability.
A 24V pump and solenoid with unknown current requirements, an unknown sensor and a 24V adapter with unknown current capability.
Imagine our dilemma.  :)

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