Correct setting of the pressure in a domestic waterworks is crucial for the flow rate and the safety of the device. We show you how to do it here.
Minimum pressure
The minimum pressure or minimum pressure is what is known as the cut-in pressure. This determines when the system switches on. It should be between 1 and 2 bar. 1.5 bar is often ideal. However, this is an estimate that must be varied depending on the system and the water column.
However, it should not be less than 1 bar. Because the system consists of two chambers and an air-filled membrane, which can be damaged by overpressure or underpressure.
Maximum pressure
The maximum pressure is also referred to as differential pressure. Is the point
reached, the system switches off. The difference between the minimum pressure and the maximum pressure is decisive for the delivery rate.The greater the difference, the greater the delivery rate. With a very high water column, the performance must be correspondingly high. In general, the pressure should be between 3 and 4 bar. With some domestic waterworks, the maximum pressure can also be increased to up to 5 bar.
Height of the water column
In order to build up a corresponding pressure, the height of the water column must be taken into account. It is important to take these into account when making a purchase decision. Pumps for water columns up to a height of eight meters can be purchased from hardware stores or other appropriate specialist shops.
However, even particularly powerful domestic waterworks are not designed for a delivery depth of more than ten meters. Even the highest setting of the pressure cannot solve this problem. In these cases, other solutions are therefore available.
The general rule: Select the domestic waterworks to match the height of the water column.
Diameter of the pipe
The diameter of the pipe also plays a crucial role. The larger the diameter or the circumference of the line, the higher the pressure must be set.
Again, it is important here to follow the manufacturer's instructions. Under no circumstances should the pressure fall below the minimum pressure. Because this can cause various problems. These are:
- continuous running of the pump
- increased running costs
- lack of suction
- insufficient amount of water
- Waste of energy
Efficiency of the pump
The efficiency of the domestic waterworks should be as high as possible. Because this results in various advantages.
Including:- the pump runs for a shorter time
- Energy can be saved
- Noises caused by the running of the waterworks are shorter and often quieter
- greater delivery depths are possible
- price differences are often small
Setting the pressure - instructions
Setting the pressure in a domestic waterworks is comparatively easy and can be done in just a few steps. The following step-by-step guide will help:
- The cover on the pressure switch must be removed.
- There are at least two and at most three adjusting screws behind the cover. The largest screw is normally used to regulate the minimum pressure. The maximum pressure can be set with the small screw.
- By turning to the left or right, the pressure can be increased or decreased. Pay attention to the pressure gauge display.
Tip: The manufacturer's instructions must be observed in any case, because the different types and models of domestic waterworks can differ considerably from one another. It is therefore necessary to go into the details in order to avoid errors and damage.
