What is an auto shut-off valve and flow restrictor and why do I need them on my RO?
The auto shut-off valve and flow restrictor combination regulates the flow and use of water in the RO system, serving three very important functions – it holds the water in the RO membrane so that it is purified fully, it reduces water waste, and it prolongs system life. Due to our advanced flow restriction configuration only 3.5 gallons of water are made brine per gallon of drinking water, compared to 8-9 gallons of water made brine per gallon of drinking water on competitors RO systems. The automatic shutoff consists of 2 diaphragms and a plunger. The plunger moves up or down in the housing based upon diaphragm pressures. The lower diaphragm pushes the plunger up allowing feed water to flow through the inlet/outlet port until the storage area pressure exceeds one half the inlet pressure. At this point, the storage area pressure on the upper diaphragm is great enough to push the plunger down stopping the flow of feed water. Flow will not start again until the storage area pressure dro
