Water Softeners
MIDI & MEDIUM
using an effective ion-exchange medium.
Free of chemical additives.
Free of chemical additives.
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Technical data
Max. pressure/PN: 6 bar
Pump starts per 24 hours: 15 starts max.
Operating temperature: max 40 °C
Drain for backwashing required: Yes
Electrical connection for automation: 230 V 50 Hz
Product options
- Time-controlled or volume-controlled automation
for backwashing
Included in delivery
- Container MIDI or MEDIUM
- Time-controlled or volume-controlled automation
for backwashing - Salt tablets, 25 kg
- One Water hardness test
- Two Flex-tubes
Functional description
When the water passes through the filter medium, the positively charged hardness-forming ions are exchanged for sodium.
Since the filter medium is not ion-selective, other positively charged ions can also be handled, depending on the affinity of the ion. Once the water has had the required contact time, soft water is obtained that can also be diluted with raw water to achieve the desired water hardness.
Once the filter medium is saturated, it is regenerated with a saline solution, and the filter returns to full functionality.
The filter’s combined cabinet accommodates both the filter vessel and salt tank, which therefore requires less space.
The filter is fully automatic and is available in a time- or volume-controlled version.
Technical data
- Max. pressure/PN…………………………………….. 6 bar
- Pump starts per 24 hours:……………………….15 starts max.
- Operating temperature:………………………….max 40 °C
- Drain for backwashing required ………………………Yes
- Electrical connection for automation……………… 230 V 50 Hz
Download:
Layout diagram

1. Water in
2. Pressure switch
3. Pressure tank/membrane pressure tank
4. MIDI/MEDIUM
Rate (Bv/h) | < 75 * | Flushing flow | Backwash volume | Salt consumption | Index |
Model | l/min | l/min (2,5bar) | litres | kg/flush | m3 at 1°dH |
MIDI | 17 | 5 | 106 | 1,8 | 44 |
MEDIUM | 22 | 6,5 | 138 | 2,3 | 56 |
* Applies to monodisperse resins
Dimensions, mm | |||||
Model | Item no. | Height | Width | Depth | Connection |
MIDI | 100844 | 700 | 350 | 520 | G20 |
MEDIUM | 100849 | 1130 | 350 | 520 | G20 |