PRODUCT OVERVIEW
7
Principle
The hydraulic diagram of the Crystal water purification system is shown above.
The solenoid valve controls intake of feed water from the tap. The first purification stage consists of
pre-filter (part no. 10320) and activated carbon filter intended to remove particles, free chlorine,
organics and colloids. A pressure switch controls feed water pressure.
The boost pump is used to maintain pressure at the level necessary for the efficient operation of the
reverse osmosis membrane. The feed stream flows to the membrane where it splits into two parts: the
permeate, diffused through the membrane, and the concentrate which passes over the membrane,
carrying away contaminants to drain. The permeate flows to the tank EX RO or to the third purification
step – deionization module (part no. 10310) where the remaining ions are removed.
Before entering the tank, water is sterilized by optional UV lamp (in Bio configuration, part no. 10102);
water quality is controlled by water conductivity sensor. The LCD display provides information about
the system status.
Purified water is stored in the tank. Water in the tank meets the requirements of ISO 3696 Grade II.
In order to obtain Grade I water, there is a recirculation loop connected to the tank.
For Trace modification this loop includes recirculation pump, polishing module (part no. 10030), Grade I
sensor as well as dispense port with microfilter (part no. 10012). HPLC and Bio configuration
additionally includes photooxidation module (part no. 10018). Crystal EX Bio system has an ultrafilter
(part no. 10120) instead of microfilter.
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