A water inlet solenoid valve and a flushing solenoid valve are required, two of which are required for one ***.
The water inlet solenoid valve is between the water pump and the filter cartridge of the pure water machine. The position changes depending on the model. It is basically in front of the water pump.
The flushing solenoid valve is on the concentrated water pipe of all RO membrane systems and is connected in parallel with the wastewater proportioner.
In addition, there are low-voltage switches, high-voltage switches and other electronic accessories, so don’t confuse them.
Supplement:
Industrial use generally uses multi-channel RO reverse osmosis pipelines, so there are two solenoid valves on each pipeline for convenience of use. There is a problem with the pipeline and the entire machine cannot be used.
Industrial machines have been equipped with computer control systems and are basically fully automatic.
It is sufficient for each pipeline to be equipped with a set of water inlet solenoid valves and flushing solenoid valves, because the flushing solenoid valves can relieve pressure and prevent excessive pressure in the RO system.
Of course, each pipeline also has a manual ball valve to facilitate manual water shutoff in case of solenoid valve failure.