Water sterilisation is now required for all residential and commercial alternative water source systems fitted, under new City of Cape Town Water, Eastern Cape and Gauteng By-Laws.
UV is the most economical way to achieve safe water quality - for both potable & non-potable uses.
INTEWA UV units are UV‐C radiation water disinfection systems that
inactivate microorganisms. The UV radiation is generated by a low
pressure mercury lamp, whose maximum intensity is at a wavelength
of approximately 254nm. Micro-organisms, such as bacteria and viruses,
during irradiation at this wavelength, lose the ability of cell division and are
thus inactivated and rendered harmless.
INTEWA UV units deliver high sterilisation performance with low energy
consumption, combined with long operational life. The compact design allows easy removal and replacement of the lamps after expiry of their useful service life. For cleaning purposes, the quartz glass can be easily removed.
All INTEWA reactor chambers feature a sight window for fast, visual inspection that the unit is operating correctly.
Key features of the INTEWA range include:
All units are assembled and pressure tested in Germany
Stainless steel construction with control sight window (blue light) visual to confirm safe UV operation
Suitable for horizontal and vertical installation
Ballast features electric fault detection light
All mounting fixtures included
24 month standard INTEWA warranty against manufacturing defects
Units use readily available Phillips low-pressure UV-lamps
Approximately 9000h (1 year) continuous lamp service life
5 sizes available for configuration to flow rates from 10l/min to 800l/min
UV Unit pricing
UV-I-16W R 2,715.00 ex vat & f&I
UV-I-30W R 4,615.00 ex vat & f&I
UV-I-55W R 5,165.00 ex vat & f&I
UV-I-110W R 11,195.00 ex vat & f&I
UV-I-220W R 17,355.00 ex vat & f&I
Higher flow covered by installing units in series
Selecting the correct UV Unit
To be read in conjunction with INTEWA UV Systems Assembly and Operation Instructions Manual
NOTE: All UV installations require an in-line 8bar pressure relief valve to be fitted.
NOTE: All high flow UV installations require the pump to be fitted with an expansion vessel
Several factors should be considered in choosing the correct UV unit for your home or business to ensure it provides the correct level of water protection you are expecting. The following factors need to be taken into consideration when understanding the average flow rate delivered by your alternative water source pump:
the level of sterilisation you require [are you wanting potable water or non-potable **depends on your source]
your pump model and performance
the layout and size of your home/building
your supply pipework [diameter, distance, height]
how many inhabitants [what the simultaneity factor of water consumer-use will be]
The following graph will help or contact us for assistance:
Click image to download the INTEWA UV unit Installation Manual