Behind the saving is not just an aerator but R.C. Mannesmann engineering — and our ability to pick the right technology for each outlet, pressure and setting. That is why we work on function and service life, not just the price of a part.
The regulator keeps the stream pleasant as pressure varies, while letting less water through. As needed it aerates the stream (comfort) or shapes it into a laminar form (hygiene). Less water also means lower heating costs.
A constant-flow regulator for outlet fittings was patented by R.C. Mannesmann in 1970 (DE 2060751, inventor Wolf-Dieter Keppel), and in doing so defined the whole category of water-saving outlet regulators.
A steady amount of water regardless of pressure — critical in multi-storey buildings.
Aerating or shaping the stream keeps it comfortable even at markedly lower consumption.
Less hot water at the outlet means less fuel to heat it. That is where the emissions saved come from — not from the water itself.
The wearing part is the insert, not the tap. It silts up with limescale and debris long before the tap reaches the end of its life — which is exactly why it can be replaced on its own. The tap stays on the wall.
The difference in material is not trivial. Published environmental product declarations (EPDs) from tap manufacturers give a basin tap a mass of 1.86–2.22 kg, mostly brass, with a reference service life of 15–16 years against a technical life of up to 25. The insert weighs a few to a few dozen grams. Replacing the wearing part closes that gap between reference and technical life.
We pick from them according to the setting — one solution for a hospital, another for a hotel, another for public washrooms.
A full-feeling stream even at low pressure — it fixes "weak water" on upper floors without raising consumption. At a basin this means an average flow of 3.6 l/min, never exceeding 4 l/min. The target flow differs by outlet type; showers and sinks have their own values. Under EN 246 the flow is stated at a pressure of 0.3 MPa (3 bar) — without the pressure, the figure has nothing to be compared against.
Aerated = everyday comfort; laminar (non-aerated) = sensitive settings, limiting droplet dispersal (aerosol).
Flexible nozzles and smooth surfaces stop limescale settling — easy for staff to clean.
It stops water standing in the pipes — preventing legionella growth, with regulatory pressure especially in healthcare.
Concealed collars and a special fitting key against theft and tampering — hotels, schools, sports venues, public washrooms.
Quick core replacement with colour coding — it makes the routine aerator replacement that hospitals require far easier.
Brass and plastics with KTW-BWGL approval — for contact with drinking water.
A membrane valve holds the odour back with no sealing liquid and no trap — and without a single litre of flushing water. Jak ventil funguje →
Interruptible flush, a dual-flush retrofit and volume setting — less water per flush without replacing the toilet.
The difference between a parts supplier and someone who solves the problem is exactly this: knowing which technology goes where. In the audit we take account of pressure, the type of setting, hygiene requirements and service life — and propose exactly what makes sense for you. A badly chosen "saving" part can ruin both the comfort and the saving.
The audit takes account of pressure, the setting and hygiene, and proposes the right solution.