Compact units CU:RO

Our new series of compact units type CU:RO consists of complete reverse osmosis system together with pretreatment on the same stainless steel skid – ready for use.

The concept brings you the following advantages:

- pre-determined system with a range of standard options for pretreatment; makes purchase and design straightforward
- factory-tested as a whole; leaving you with minimum risk of errors
- frame mounting; makes a secure and quick installation
- compact design with minimum footprint

The series includes 5 different sizes with standard output of demineralized water from 0.4 to 2.0 m³/h – each available with three options for pretreatment.


Proper pretreatment of the feedwater to an RO system is an essential factor for unproblematic, long-term operation. Clogging of the membranes by suspended solids, scale-forming minerals, and other impurities have to be prevented by appropriate measures. Hardness minerals can be removed in a softener, suspended solids in a mechanical filter, while free chlorine can be removed in an activated carbon filter.

You can select between the following pretreatment options:

  • 1-tank softening plant
  • 2-tank softening plant, parallel operation 
  • 3-tank plant with combined filling for softening and removal of free chlorine, parallel operation

  • Moreover, all units are equipped with a special mechanical filter (strainer) which is reliable and easy-to-maintain. A backflow preventer to separate the unit from the public water system is also standard on all units.
    A designed control system integrating an operator panel and a programmable logic controller (PLC) is accessible on the front side of the unit together with flow meters and manometers.

    The control panel offers a user-friendly HMI environment. The panel has a large, illuminated display for optimum operator control and monitoring. The menu structure is standardized and available in several languages for easy and quick access to operating data and parameter settings. User-friendly keys on the panel front make interface possible without violating the IP54 protection class.

    Control cabinet for power supply with main switch and motor protection for RO pump Conductivity measurements with temperature compensation and output signal 4-20 mA