Water Treatment
Combined systems
Combined systems bring together softening and reverse osmosis in one compact unit. The raw water is first softened and then treated further via a membrane. This produces low-salt feedwater with reduced conductivity, which protects the steam generator against limescale, deposits and increased salt loading.
Combined systems are particularly suitable where a high water quality is required together with a small footprint – for example in compact steam plants, mobile container solutions or restricted plant rooms.
Available for purchase only
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Operation & maintenance
Maintenance & service
- Top up salt tablets
- Check softened water hardness and conductivity
- Check and replace pre-filters
- Monitor membrane performance
- Check valves, hoses, connections and leak-tightness at the specified maintenance intervals
Components
Our compact combined system brings together all the components required for reliable, demand-based water treatment on ready-to-operate stainless steel frames:
- › Backwash filter: Reliably removes solid particles from the inlet water
- › System separator: Prevents non-drinking water from flowing back into the public drinking water network
- › Twin-column softening system: Ensures a continuous supply of softened water through alternating operation.
- › Reverse osmosis system: Reduces dissolved salts and produces water with low conductivity
- › Storage tank: Stores the treated water and automatically monitors the fill level. Available in HDPE or stainless steel
- › Pressure booster system: Supplies the treated water as required at a constant supply pressure
- › Mounting frame: Enable a stable, ready-to-connect installation and reduce on-site assembly work
Frequently asked questions
Why does a steam generator need water treatment?
Untreated water leads to limescale and corrosion inside the boiler. The limescale settles in particular on the heating elements and prevents heat transfer — with the result that the heating elements fail completely, often accompanied by leaks caused by the heating elements bursting.
Where can I obtain the local mains water analysis?
You can usually obtain the analysis of your mains water from your supplier on request (often already published on their website). For an initial indication, search the internet for “water analysis + the name of your location”.
What has to be observed when commissioning the softening system for the first time?
The hardness level of the water in question has to be set on the unit. It must also be ensured that the brine tank is adequately filled with salt tablets and water. Please note that the brine tank has to be filled with water manually once during commissioning — this does not happen automatically.
What is regeneration?
During regeneration, the ion exchange resin loaded with calcium and magnesium ions is flushed with a common salt solution (NaCl), which displaces the hardness-forming ions and replaces them with sodium ions. It is therefore always important to ensure that the brine tank is adequately filled with salt tablets.
When do I need a twin-column system and when is a single-column system sufficient?
The softening system has to regenerate after a certain throughput volume. During this process (approx. 1.5 hours) the column in question cannot produce softened water. In a twin-column system the control unit ensures that one column is always available for softening — this guarantees continuous water softening and gives the steam generator access to softened water at all times.
Can regeneration also take place at a fixed time of day instead of by throughput volume?
Yes, the systems can be programmed so that a forced regeneration is carried out regularly at a fixed time of day.
How much fresh water does one regeneration cycle require?
Depending on their capacity, the single-column systems use between 19 and 115 l. The twin-column systems require between 50 and 625 litres depending on the throughput volume.
Non-binding consultation on Combined systems
Our specialists in Bremen configure the system to match your requirements and advise you on the accessories you need.