Dual water softening systems with central control valve
We offer fully automatic, sensor-controlled water softening systems for producing soft water with a residual hardness of less than 0.1 °dH, using the neutral ion exchange process with a strongly acidic cation exchanger. Regeneration is carried out with table salt. Regeneration is triggered fully automatically based on water quality using hard water sensors; manual intervention is also possible.
Quality control using hard water sensors ensures a high level of reliability in the softened water supply. At the same time, the maximum available capacity is utilized, thus enabling the best possible use of regenerant.
Product overview: Dual water softening systems with Autotrol or Fleck control head
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WAT-DK
Flow rate up to 4 m³ /h
Capacity 50-300 m³ x °dH
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WAT-DV
Flow rate up to 8 m³/h
Capacity 50-800 m³ x °dH
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WAT-DL
Flow rate up to 14 m³/h
Capacity 350-1200 m³ x °dH
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WAT-DB
Flow rate up to 7 m³/h
Capacity 50-500 m³ x °dH
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WAT-DF
Flow rate up to 27 m³/h
Capacity 350-2500 m³ x °dH
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WMS-DF
Flow rate up to 7 m³/h
Capacity 50-500 m³ x °dH
Product overview: Dual water softening systems with Clack control head
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WAT-DKW
Flow rate up to 7.5 m³ /h
Capacity 50-650 m³ x °dH
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WAT-DBW
Flow rate up to 7.5 m³/h
Capacity 50-650 m³ x °dH
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WAT-DVW
Flow rate up to 9 m³/h
Capacity 50-650 m³ x °dH
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WMS-DFW
Flow rate up to 5 m³/h
Capacity 50-500 m³ x °dH
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WAT-DLW
Flow rate up to 15 m³/h
Capacity 350-1200 m³ x °dH

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Sensor-controlled water softening system
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Countercurrent regeneration (UF) is a particularly gentle regeneration process in which operation takes place from top to bottom and regeneration from bottom to top. This allows for significantly more efficient regeneration, saving 50% on salt and wastewater while simultaneously achieving the best soft water quality below 0.1 °dH.
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Tanks by Structural
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The particularly user-friendly control display.
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Hot water sanitizable systems for pharmaceuticals, entirely made of stainless steel

Adapted to your application...
We offer many options for customized solutions. Almost all parameters and components can be varied and combined. We would be happy to advise you on which solution is right for you.
Karl Spiegl GmbH & Co KG has extensive experience in the production of pipe systems made from materials other than PVC, such as:
Stainless steel
PP
PE
PVDF
Stainless steel pressure pipes are manufactured in-house.
Avoid residues with 100% silicone-free reverse osmosis systems; these are particularly suitable for car or paint shops.
Do you need advice?
The optimal solution depends on the application, the required water quality and the water consumption. Our team of specialists will be happy to answer your questions about solutions for your water treatment solution.
