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Compared to flow restrictors, water-saving products with an integrated flow regulator (such as the PCA aerator) offer more comfort of use at low pressure and more water savings at high pressure. You will use as much water as necessary (comfort) and at the same time as little as possible (environmental protection).

Simple solution: water-saving technology by Neoperl

When we talk about faucets, taps and showers, we often mention the phrase 'flow rate'. The flow rate designates the amount of water per minute that flows from the tap or shower. In the US and Britain, the flow rate is commonly defined in gallons per minute (gpm). In the rest of the world, litres per minute (l/min) are used. One gallon equals approx. 3.79 litres.
 

Controlling the water flow

There are basically two options to control the flow. The simple option is a fixed orifice designed to allow a predetermined flow at a certain specified pressure (e.g. at 3 bar). If the pressure is higher, the flow rate increases; if the pressure drops, the flow rate goes down. At Neoperl, we refer to such products as 'restricted' or 'flow restrictors'.

The other option is to use NEOPERL® products with an integrated flow regulator. They maintain a steady flow rate virtually independent from the line pressure. This saves water, as the flow rate does not go beyond a set value (within a certain pressure range).
 

Water-saving technology

The integrated flow regulator consists of a housing and a rubber o-ring. As soon as water flows through with more pressure the o-ring alters its shape and thus makes the openings smaller – the flow rate remains virtually the same.

If you would like to know in more detail how this works, click here to find out about the Neoperl water-saving technology.