PIG, LAUNCHER AND CATCHER FOR TUBE OR PIPE CLEANING

摘要

Pipes or tubes, for example, in heat exchangers, can be cleaned internally using a water hammer shock wave with a relatively incompressible pig which travels at high velocity and a flushing liquid. FIG. 1 illustrates the use of launcher (14) to apply a very rapid pressure build-up by means of a liquid to one end of a pig located in a tube (11) to be cleaned.