pipework

plural pipeworks

1. uncountableusuallyAny system of pipes or tubes; piping.

   1 more example

   The amount of external pipework is also unusual in a British locomotive, though apparent in the most recent L.M.S.R. designs, such as the Class "4" 2-6-0s; but while lacking the tidiness of the old school of British locomotive engineering, this has obvious application for maintenance purposes in present circumstances.

   1951 April, Stirling Everard, “A Matter of Pedigree”, in Railway Magazine, number 600, page 274

2. uncountableusuallyentertainmentThe pipes and stops of an organ.