... plant Hardened bauxite dust on mills, filters, floors, tanks, sumps and sewers. With preesure 350bar --2800bar 2. ... 690bar5. using to wash Chemical processing Chemicals from boiler tubes, tanks, valves. evaporators, heat exchangers, tube bundles, vessels, reactors ... and rust on ships, deck, hull and ballast tanks. Oil platforms, storage tanks, boilers, cold cutting, underwater blasting, pipe cleaning ...