Fouling is particularly important in heat exchangers and other installations involving fluid flow (evaporators, filters, cyclones, etc.). The food processing equipment must be cleaned easily either by quick dismantling and cleaning the parts, or by Cleaning-In-Place (CIP) techniques. The equipment of small food processing plants is usually cleaned by periodic dismantling of the principal units, such as pumps, plate heat exchangers, filters etc. Quick dismantling and reassembling of process piping is facilitated by various hand opening clumps.