B
barnaby_david_king
We are installing solar power irrigation systems for smallholding farmers in Rural Ghana,
We have 12V DC 0.18kW (max 20A) pumps, there only power source will be a voltage varying from 15-20V coming from solar panels.
The boreholes are narrow, therefore is not much room for a float switch,
The max flow is 20 Litres per minute but more typical flows would be 5-10 liters a minute
Can anyone advise on flow or pressure switch solutions (I have done a google but I don't have experience in this area and am not confident myself)
Ideally, there would be no second power source or battery needed, and the solution should be as low-cost as possible. something under £20 per unit for 20 units would be ideal.
(It's a charity project replicating 20 units - so cost is important)
let me know if I missed out any key info
We have 12V DC 0.18kW (max 20A) pumps, there only power source will be a voltage varying from 15-20V coming from solar panels.
The boreholes are narrow, therefore is not much room for a float switch,
The max flow is 20 Litres per minute but more typical flows would be 5-10 liters a minute
Can anyone advise on flow or pressure switch solutions (I have done a google but I don't have experience in this area and am not confident myself)
Ideally, there would be no second power source or battery needed, and the solution should be as low-cost as possible. something under £20 per unit for 20 units would be ideal.
(It's a charity project replicating 20 units - so cost is important)
let me know if I missed out any key info
