enz® UR nozzles are used to clean and in particular to polish the inside of smaller pipes and tubes, e.g. in heat exchangers. The enz® water-brake makes them spin at a constant speed. You can clean the tubes up to 1500 bar (22,000 psi). The 90° and 45° jets clean the hardest of deposits while pulling the nozzle into the tube and flushing the debris out.