Save water

CFR saves water

Flow Constant Regulators (CFR) consist of a precision O-ring, a control star and a housing. The gap between the O-ring and the prongs of the control star is the orifice through which the water flows. This ring changes shape as the water flows through with more pressure, narrowing the flow. The amount of water flowing through remains constant.

How does it work?

Static state (no flow, no or low pressure): The O-ring is relaxed (position 1). Dynamic state (flow): As soon as water flows through the flow regulator, the precision O-ring deforms and is pressed between the prongs of the control star. As a result, the passage openings for the water become smaller (position 2). The higher the flow pressure, the more the O-ring deforms (position 3). As the pressure decreases, the precision O-ring gradually returns to its original shape, making the water passage openings larger again (back to positions 2 and 1).


Worldwide, drinking water is a very scarce resource. And in Europe, too, climate change is causing the shortage of clean drinking water to become increasingly acute. The good news is that every individual can do something about it. And those who reduce their water consumption also ensure that less wastewater is flushed into the environment. All this in turn saves energy.


The unique CFR technology always allows a constant amount of water to flow regardless of the line pressure, e.g. 6 liters per minute for hand washing or 10 liters per minute for showering. Depending on the selected regulator or flow rate desired.

Consequently, using CFR not only saves a lot of money, but also ensures even water distribution.


Saving WITHOUT loss of quality
Live sustainably and protect the world
Easy assembly without maintenance

Your Contact

Niki Marinovic

Sales Manager Guest & Care