How it works

The patented technology of StratiFlex™ exploits the pressure difference between the inlet water and the water inside the tank.

When the water in the bottom of the tank is colder than the water that will be led into the tank, the cold water will put pressure on the surface of the tube. This is caused by the pressure difference between the water within the tubes and outside the tubes due to the density difference between the cold and hot water.

The pressure difference between the cold and the hot water will ensure that the inlet water stays inside the tube until it reaches the thermal layer where the inside and outside temperature is equal – thus the point of pressure equilibrium. At this point the inlet water will exit the tube into the correct thermal layer and maintain the thermal stratification in the tank.


Figure 1
When the surrounding water is colder
than the water inside the stratifier,
the pressure difference forces the
circular holes to close. Cold water
from the tank cannot enter the
stratifier, and hot water cannot exit
the stratifier at a colder thermal layer.


Figure 2

When the surrounding water has
the same temperature as the water
inside the stratifier, there is no
pressure differences to close the
openings. The inlet water will exit
the stratifier at the thermal layer
with the exact same temperature.