thermostatic & pressure balanced
cartridge

What Ordinary Mixing Valves Can Only Do Once
FM Mattsson Does Twice

This picture is a familiar one to everyone who takes a dailyshower.The temperature suddenly gets colder or becomes scalding hot.

This often happens as a result of someone turning on a tap in another part of the house, perhaps the kitchen and momentarily "steals" some of the water pressure. This is a particular problem associated with multi user, multi floor applications such as hotels, flats or accommodation blocks

Another explanation is that the hot water temperature for some reason drops.

Standard mixing valves cannot handle either of these situations and ordinary automatic mixing valves can handle one but not the other.

FM Mattssons New World Patented Thermostatic AND Pressure Balanced mixing valve easily handles both eventualities

Temperature As Steady As A Rock

Until now, thermostatic mixing valves have been designed to handle temperature variations and moderate supply water variations but not sudden pressure peaks or troughs. Pressure controlled shower mixing valves on the other hand have been designed to cope with fluctuating pressure but not fluctuating temperature.

FM Mattsson are the first manufacturer in the world to combine the control of temperature and pressure in a single cartridge. This means that no matter what happens in your house plumbing system the mixed water temperature in your shower will remain constant. We are the only manufacturer that will guarantee the performance of our shower mixers.

Always in Control Of Hot Water Temperature, Always Smoothing The Pressure Peaks

In every system there are only 2 factors determining the stability of the mixed water temperature in a shower mixing valve, the pressure and the temperature of the feeding water.

If both temperature and pressure are steady you can use any mixing valve and enjoy a consistent even mixed water temperature.

The problem is that this is a perfect system which does not exist in the real world. Instead the mixer itself has to be prepared for "Come What May" The FM Mattsson Mixer is Prepared.

It can handle both pressure and temperature variations instantly and in its stride, delivering a constant temperature at the showerhead regardless of what's thrown at it.