The purpose of any programmable clean-in-place (CIP) system is to provide a consistent and repeatable wash cycle for the equipment washed. Consistent time, temperature, chemical, flow and pressures are critical for every cycle that is run.
Sheeting, the basic principle of tank washing, is accomplished using spray balls, spray disks or spray dishes. Sheeting involves spraying solution at the top of the vessel and allowing it to sheet down the dome, walls and across the floor of the tank to the outlet. This provides the mechanical action for removing soil from the vessel.