Keller Product’s pump/skimmer removes dye penetrant from rinse water. Similar in operation to conventional tramp oil pump/skimmers, the TKO-10-DP pulls the penetrant from the surface of the tank through a floating inlet device using an air-operated pump. It then separates the penetrant from the rinse water with a permanent separator element and returns water continuously to the rinse tank at a high flow rate.
Although removal of the penetrant from the tank surface appears to be similar to removal
of tramp oil from machine tool sumps, conventional tramp oil skimmers cannot be used
because the penetrant attacks PVC and many other plastics used in tramp oil removal
devices, the company says.