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Water-saving technologies for aerators
For a faucet aerator to save water, the flow rate must be regulated. There are various technical means of achieving this.
Water-saving solutions at a glance
Faucet aerators with flow restriction
In this simple application, the flow is limited through the size of the flow bore so that it precisely corresponds to a set value for a certain pressure range (e.g., 3 bar / 43.5 psi).
Neoperl refers to the products used for this as "flow restrictors". Flow restrictors have a low flow rate at low pressure, while at high pressure the flow rate is often higher than necessary.
Faucet aerators with integral flow regulator (PCA)
PCA faucet aerators are equipped with an integral flow regulator. The o-ring helps to achieve an almost constant flow rate regardless of possible pressure fluctuations.
In addition to the water-saving effect, a constant flow rate allows water to be distributed evenly across multiple draw-off points and complies with standards in many markets now.
Faucet aerators with integrated DUAL CORE technology
DUAL CORE (DC) technology is an enhancement of the well-established and proven PCA technology. The operating principle is the same.
What are the benefits ?
- Full, aerated stream from as low as 0.2 bar / 2.9 psi
- Nominal flow rate reached even from as low as 0.7 bar / 10.2 psi
- Can be used in all pressure ranges, whatever the target market ("all-pressure" PCA)
- Ideal for faucets with a restrictive design and/or where there is low system pressure
Note
In the event of severe water reduction, temperature fluctuations may occur as a result of pressure fluctuations, depending on the type of mixer faucet and sanitary system. In these circumstances, please select a higher flow rate category.
