Inline tube washing tunnel

Our R&D team has innovated by developing an washing tunnel . To enable them to switch to waterborne painting in their production line, our client, a major player in the manufacture of technical tubes, entrusted us with the installation of an in-line washing tunnel, allowing them to achieve the required production rate with flawless paint adhesion.

Our client's need was for continuous 24/7 washing – 5 days/week of Ø 7" (177.8 mm) steel tubes for external degreasing of the tubes before application of hydro paint.

Following the various tests carried out by our company in the preliminary design phase, a washing pressure of 180 Bars was defined, at a temperature of 70°C, with the addition of alkaline detergent (40g/l), with a water flow of 6000 l/h, necessary to supply 1 HP washing ramp with 15 nozzles of 400 l/h each (i.e. 6000 l/h in recycled water).

Based on these elements, we provided them with a set of equipment ensuring these washing characteristics, with the service of treatment and recycling of wash water, filtered to 10 µ, free from any oil/grease residue and any odor.

Thanks to the washing tunnel that we have installed in line on our client's production line, combined with the high-pressure technical unit, the gas boiler, the wash water recycling system and the tube blowing system, our client can now have their tubes painted with water-based paint, with perfect manufacturing quality.