HIGH PRESURE Info WHAT IS HIGH PRESSURE? WATER UNDER HIGH PRESSURE IS CURRENTLY THE OPTIMAL SOLUTION FOR CLEANING OFF DIRT. A HIGH PRESSURE WATER SPRAY COSISTS OF WATER FORCED THROUGH A NOZZLE, TO INCREASE THE WATER PRESSURE AND THUS THE CLEANING EFFECT. A high pressure cleaner can be described as an advanced water pistol, in which six para- meters determine the cleaning effect: 1. PRESSURE (LOW VS. HIGH PRESSURE) Traditionally, high pressure cleaners operate at a pressure between 50-250 bar. High pres- sures will increase the ability to loosen depo- sits/dirt, resulting in fast cleaning. 2. WATER FLOW The water flow in a high pressure cleaner is equivalent to just 10-30% of the consumption by a traditional garden hose. High pressure sprays thus save water in relation to their higher cleaning effect. Higher water flows will increase the cleaning effect, typically making it possible to clean larger surfaces in one go. In addition, a high water flow has a good flushing effect, rem- oving dirt quickly from the cleaning area. Water flow and pressure are both crucial parameters for effective cleaning. 3. TEMPERATURE (COLD VS. HOT WATER) A higher temperature generally improves cleaning ability, due to the better solubility. Cold water cleaners are traditionally used for cleaning water-soluble soil and dirt, while hot water cleaners are used for cleaning greasy or oily dirt and deposits (mineral/animal). The hot water cleaner works on the same principle as the cold water cleaner, except that the water is heated in an integral oil-fired boiler with a high-pressure heating coil to a temperature of 40-120°C after the water has been pressurised. If you only have a limited need for hot water, we recommend the following options: - T he cold water cleaner can be connected to a hot water tap. However, the inlet tem- perature must never exceed 60°C. - T he cold water cleaner can force the water through a “Hotbox” (oil-fired boiler with high pressure heating coil), which heats the water up to between 40-120°C. 4. UNIT TYPE (MOBILE VS. STATIONARY) Stationary units are traditionally used where cleaning is carried out on a regular basis. A stationary unit reduces the number of hoses and cables. With stationary units, it is also possible to combine several pumps, so the system can be used by multiple users simul- taneously. Mobile units are used where the cleaning requirement varies or where higher flexibility is needed. 5. CLEANING AGENTS Cleaning agent is also an important element for achieving high cleaning effect. By using an efficient cleaning agent you improve the overall cleaning. 6. CHOICE OF NOZZLE It is important to use the right nozzle. A wrong choice will mean a lower water flow or unnecessary stoppages or recirculation. 2 RENO - HIGH PRESSURE
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