Dual flow taps used to make up the majority of monobloc tap sales but the current trend is towards single flow style taps.
It is recommended that non return valves are fitted to single flow taps.
All the mixers sold by Grand Taps are the single flow style.
- In single flow taps the hot and cold water mix within the tap body and
spout, by the time the water has left the spout the water should be well
mixed to the desired temperature.
Single flow taps will generally have a better flow rate than an identical
dual flow tap, as the outlet diameter is greater.
- In dual flow taps the hot water is fed through a separate pipe within the
spout, the cold water passes around the outside of this pipe.
Although the water only mixes once it has left the tap this gives the
benefit the spout should never become uncomfortably hot.
As both hot and cold are kept separate the chance of backflow is
minimised.
single flow mixer tap
dual flow mixer tap
