no PED inspection obligation and no mandatory periodic re-inspections thanks to our patented technology

When purchasing and operating professional steam and high-pressure cleaners, buyers are faced with complex regulations. Depending on the technical design of the burner/heat exchanger, a system falls under light regulation or under the highest European risk class (PED Category IV).

To be precise: with a working pressure above 31.25 bar, a temperature above 110 °C and a burner/heat exchanger volume of more than 2 litres, the machine legally falls into PED Category IV (the very high risk class).

Water at a working pressure of 200 bar only boils at temperatures far above 100 °C. As soon as a pipe or hose fails, that pressure drops instantly to ambient pressure (1 bar). The superheated water immediately turns into steam, expanding explosively in volume by a factor of 1,600.

With a volume of less than 2 litres, the total stored potential energy is physically limited, which removes the risk of serious accidents at the source. Above 2 litres, a rupture can have catastrophic consequences for bystanders.

For years, meclean® has addressed this in a technically smart and safe way with SteamPLUS® steam high-pressure technology. With this patented technology, only a minimal amount of water is heated at any one time. The risk is thus eliminated at the source (we call this inherent safety). As a result, meclean® machines with SteamPLUS® steam high-pressure technology fall under Article 4.3 (SEP / Sound Engineering Practice). This means no mandatory inspection prior to commissioning, no mandatory periodic re-inspection costs, and complete freedom in choosing parts.

The 3 key benefits of a meclean® high-pressure trailer/Trailerjet/Trailerpack with SteamPLUS® steam high-pressure technology at a glance