Aquatec DC 500, User Manual, Page: 19 / 25

19
Membranes
Demounting the membrane:
For demounting the membranes, screw off the 3 M6x20 screws each at both ends.
(Screw tightening torque for the holding clips 3 Nm). Then take off the stainless steel
holding clamps. Thereafter, pull the end caps out of the pressure pipe with a slight
pull at the stainless steel-fittings of the pressure hoses and slightly sidewise
movements.
The membrane has to be shoved out of the pressure pipe in flow direction, because
the O-ring of the membrane prevents lateral movements against the flow direction.
According to this, during assembly, the membrane has to be shoved in the pipe in
flow direction. Before installation, all O-rings have to be lubricated lightly with acid-
free silicone grease. When mounted, necessarily watch the O-rings to avoid damage.
Before installation of the membranes, first fit the end cap on the side of the
concentrate in order to thereupon shove the membrane against this cap.
Important : To avoid that the new membrane dries out, it may only be removed from
the plastic packaging just before commissioning the plant. The plastic film with the
manufacturer's label on the membrane must not be removed .
The vent of the O-ring has to
be directed to the water inlet
seawater
product water
concentrate
(brine)