{"id":6602,"date":"2025-08-11T13:51:58","date_gmt":"2025-08-11T11:51:58","guid":{"rendered":"https:\/\/www.valves-community.com\/?p=6602"},"modified":"2025-12-02T15:24:20","modified_gmt":"2025-12-02T13:24:20","slug":"environmental-technology-high-pressure-cleaning","status":"publish","type":"post","link":"https:\/\/www.valves-community.com\/en\/industrial-applications\/environmental-technology-high-pressure-cleaning\/","title":{"rendered":"Environmental technology: High-pressure cleaning"},"content":{"rendered":"

KROLL Fahrzeugbau-Umwelttechnik is a company that manufactures customised jet vac vehicles for environmental technology. HEROSE safety valves<\/a> take care of pressure control on all vehicles.
\n<\/strong>The process starts with a bare chassis and finishes with a powerful mobile wet-vacuum unit with integrated water recycling. KROLL manufactures many important parts itself and builds highly complex specialised vehicles to keep sewers and drains clear and free-flowing.<\/p>\n

From sheet steel to finished tank<\/h2>\n

Here on the three-roller sheet bender is where the body starts to take shape: metal is bent and welded to form large tubes. State-of-the-art welding joins them cleanly. The depth of production at KROLL is high. Only a few parts are boughtin; such as the cover for the tank. But even at that, attachments such as hinges and outflow pipe still need to be integrated. The finished technical systems for a vehicle are fully assembled for sign-off by the customer. Then the superstructure is dismantled and prepared for painting. The parts to be painted are sand-blasted, primed and then multiple coats of the requested colour are baked on at 70 \u00b0C. All systems are put through their paces during initial start-up. KROLL works subassembly by subassembly using a modular concept, which allows for a high degree of vehicle customisation.<\/p>\n

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The steel plates are bent, welded and are the starting point for the boiler of each vehicle.<\/p><\/div>\n

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Flushing all over the world<\/h2>\n

The end products are powerful systems to suit every requirement. \u201cWe start where others stop,\u201d says Bernhard Maciejewski, who is Product Manager at KROLL. Of the four finished vehicles currently sitting in the showroom in H\u00fcnxe, two are destined for Australia, one for Ireland and the other for Benelux. The multitude of possibilities, the sophisticated technology and the resulting reliability ensure that KROLL vehicles are in demand worldwide \u2013 in many European countries, in Dubai, in Africa and even in Australia and New Zealand. Every continent has sewage systems and also the problems that arise when they don\u2019t work as they are supposed to. When these problems occur, applying pressurised water on the one hand and suction on the other help \u2013 the vehicles combine both in many different forms. The vehicle technology is complex and they must be operated by qualified operators. Job titles include Jetting Engineer, Drainage Engineer and Tanker Engineer. Digital control systems in combination with multifunction sensors make operation easier.<\/p>\n

Technical solutions for various requirements<\/h2>\n

Each and every vehicle that leaves the KROLL factory is precisely configured to the customer\u2019s specifications. The options are vast \u2013 from the capacity of the tank to additional water tanks, the output of the pressure and suction pumps and on to water recycling and the configuration of reel systems and hose lengths. Even if all customers have the one end goal \u2013 that everything runs smoothly \u2013 their specific requirements for the specialised vehicles vary widely. This means that vehicle features need to be explained and customers must be thoroughly advised on feature selection.<\/p>\n

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