Water Softening System KVD-621

BWT KVD-621 water softening system ensures scale-free water around the clock

BWT KVD-621 is a compact and intelligent water softening system that removes limescale from water without the use of electricity. With a capacity of 30 litres per minute and a duplex design, the system ensures a constant supply of soft water, even during regeneration.

Ideal for professional environments such as laundry facilities, dishwashers, steam ovens, and car washes, where scale-free water is essential for operational reliability and longevity.

Intelligent softening with no electricity consumption

The KVD-621 operates entirely without electricity, thanks to two built-in water meters that automatically register consumption and initiate the regeneration process when required. You simply set the system once according to the local water hardness – after that, it runs fully automatically. This makes installation straightforward and running costs minimal, as neither a power supply nor complex programming is required.

Continuous operation with duplex technology

The advanced duplex design means the system never compromises on water supply. Whilst one tank regenerates, the other takes over automatically, guaranteeing uninterrupted access to soft water. This is particularly valuable in professional environments where production stoppages can be costly. The regeneration process uses only 1 kg of salt per cycle and takes place with soft water in counterflow, both reducing running costs and extending the service life of the filter media.

Proven benefits of scale-free water

By installing BWT KVD-621, you achieve a significantly longer service life for your machines and installations. Limescale deposits are effectively prevented, meaning fewer repairs, less maintenance, and lower energy consumption. Water-using machines operate more reliably, and the quality of end products improves – whether that means cleaner laundry, sparkling crockery, or better steam quality. At the same time, the consumption of cleaning products is reduced, as soft water cleans more effectively.

With BWT KVD-621 water softening system you get:

• Automatic softening with no electricity consumption and minimal maintenance
• Uninterrupted supply of soft water with a capacity of 30 litres per minute
• Economical operation with low salt consumption of just 1 kg per regeneration cycle

You are always welcome to contact our customer service at web@hwl.dk for further information.

Frequently asked questions

How often do I need to add salt to the system?

Salt consumption is only 1 kg per regeneration cycle. The refill interval depends on water consumption and the water hardness in your area, but the system is designed to be economical to operate.

Does the system require special installation or maintenance?

The system requires professional installation to the water supply, but as it operates without electricity, the installation is relatively straightforward. Maintenance is minimal and consists primarily of adding salt and periodically checking the settings.

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