Guru
Joined: 07/08/2011
Location: AustraliaPosts: 6546
| Posted: 07:51pm 04 Jan 2023 |
I have some garden timers that run on 3V. They use a rotary ball valve driven by a small motor. The timer part is stuffed so I intend to repurpose the motor/valve "eventually". They rely on physical limit switches so not sure about the life-span.
A trip to the garden centre might give you some inspiration. The voltage used varies a lot.
This one is 3V
This one is 9V
My 3V ones are similar to this 9V one.
And I know there is at least one Bluetooth one that is 6V.
Prices vary from worth butchering to ridiculous.
You are right about the solenoids, some require a low holding current, others are latching. Being packaged for the gardener, the details are limited.
Jim
Edit: This is a 4.5V valve:
https://www.ebay.com.au/itm/164456997807
Edited 2023-01-05 06:35 by TassyJim