noun. See organ, 6.

noun. Same as piping, 4.

noun. Any system of pipes or tubes; piping

noun. The pipes and stops of an organ

noun. the flues and stops on a pipe organ

"Some parts of the processing machinery such as pipework, heat exchangers, tanks, fillers etc. must be cleaned immediately after the production cycle has finished so that when the next production cycle starts, the system should be cleaned."

wind  wind instrument  

flue  flue pipe  labial pipe  organ stop  reed pipe