Reverse Osmosis System

Reverse osmosis units create the optimal starting water for marine water and freshwater aquaria. Many water problems can often only be resolved by using reverse osmosis water. Reverse osmosis units use the principle of physical filtration. Unlike ion exchangers, for example, which exchange ions (e.g. calcium) which cause hard water with other ions (e.g. sodium) which do not cause hard water, reverse osmosis unit physically removes pollutants (e.g. silicate, nitrate) and hardness components from the water. In a reverse osmosis unit, the water runs through a semipermeable membrane at the residential pressure in water lines of 2 − max. 6 bar. The substances (pollutants, salts or hardness components) which have dissolved in the water are unable to pass the fine lattice structure of the membrane and remain in the residual water. This residual water is discharged as concentrate and can easily be used for cleaning, watering or as service water. Dupla reverse osmosis units retain up to 95 − 98 % of all pollutants in tap water.

Tip: By connecting a Dupla ultrapure water filter (optional) downstream, even the smallest particles of silicates and nitrates are fully removed.

RO 200 fully assembled with (5 µm fine filter), carbon filter and membrane

3 x 2 m hose

3/4 inch tap connection

flow limiter with built-in flush valve

connecting clamps for prefilter and membrane housing

wall bracket 

hose plug

housing key for membrane housing

operating instructions

 

 

max. output 200 l / day, varies by supply water quality

average output 120 − 200 l / day at 8 − 15° C and 3 − 5 bar pressure

average retention rate 95 − 98 %

aluminium 97 − 98 %

cadmium 95 − 98 %

bacteria 99 %

nitrate max. 90 % 

silicate max. 90 %

sulphate 97 − 98 %

hardeners 95 − 98 %

 

Ratio concentrate: Permeate 4 : 1 / 3 : 1 depending on supply water quality and pressure.

Conductivity ratio tap water: permeate

1.000 µS	to 50 µS
300 µS	to 15 µS

Conductivity ratio tap water: permeate with
downstream Dupla ultrapure water filter

1.000 µS	to 1 µS
300 µS	to 1 µS

Spare parts:

80546	RO 200 replacement membrane
80547	Replacement 5 µm fine filter RO 200
80548	Replacement carbon filter RO 200
80545/6	Flow limiter with flush valve RO 200
80545/7	Membrane housing gasket kit RO 200 / 300
80519	3/4 inch tap connection
80545/18	Membrane housing key RO 200

 

Optional accessories:

80500	Filter housing FG 500
80511	Ultrapure water filter with colour indicator
80512	Silicate filter
80513	Nitrate filter
80514	Siliphos filter
80520	Aqua magnetic valve