Soft, but with pressure

The Grünbeck Delta-p water softener

Convenient triple water softener

Soft water is gentle to the skin, easy on the water installations, saves cleaning agents and provides advantages with regard to hygiene. The Delta-p triple water softener supplies soft water in the most convenient manner. Thanks to the patented three-way ball valve, the available water pressure is maintained at the highest level possible.

The Delta-p triple water softener permanently supplies soft water in homes. It works according to the ion exchange process and sets new standards with its low pressure loss and extremely economical consumption of operating materials. This is achieved, among other things, by a patented control valve. The electronically controlled blending sets the desired residual hardness. The Delta-p is available in the sizes 1", 1¼", 1½" and 2", each in a drinking water or industrial version. In addition to the standard salt tanks with a maximum regeneration salt capacity of 75 or 200 kg, larger salt tanks are also available. The connection to the drinking water system is convenient, all connection hoses have an approval according to KTW category A and W 270.


  • Permanent soft water supply, no interruption of operation for salt regeneration
  • Minimum pressure loss <0.5 or <0.8 bar
  • Easy installation - plug-and-play mounting
  • Economical consumption of operating resources
  • Particularly low operating costs
  • Precise, electronically controlled blending
  • Fresh water guarantee
  • Patented control valve
  • DVGW-certified


Technical specifications

1" ¼" 1½" 2"
Nominal connection diameter [DN] 25 32 40 50
Nominal flow [m³ / h] 3 5 8 12
Nominal flow blended water [m³ / h] 5 8.3 13.3 20.0
Pressure loss at nominal flow [bar] 0.5 0.8 0.7 0.8
Capacity per kg of regeneration salt [mol / kg] 5.7 5.7 5.7 5.7
Regeneration salt supply [kg] 65 65 180 180
Salt consumption per regeneration, approx. [kg] 1.5 2.5 5.2 7.2
Order no. Delta-p 185100 185110 185120 185130
Order no. Delta-p-I 185200 185210 185220 185230