D-040 V / D-060 V M1

One-way air valve (air release only) for suction systems-At pump stoppage, osmotic pressure is created through the suction of permeate water from the tanks.
A pressure balance is created between the osmotic pressure of the product water and the raw seawater.

The function of the air valve is to release air as well as to prevent the breaking of the siphon at the high point by preventing the entry of air into the system.