From Longman Dictionary of Contemporary Englishpipeworkpipe‧work /ˈpaɪpwɜːk $ -wɜːrk/ noun [uncountable] the pipes that are part of a building, machine, or structure The houses all have lead pipework.
Examples from the Corpus
pipework• Inspect the hot water cylinder and pipework carefully.• Single-stack systems are much neater than two-pipe systems and use less pipework.• He was standing under the truck's engine, staring intently into the masses of rusting pipework.• The four cylinder diesel units will interchange with the four cylinder petrols with suitable pipework and wiring and throttle linkage.• If it is, hot water will flow into the radiator from the pipework and displace the trapped air.• Once the old tank has been removed, you can install the pipework for the new cylinder.• It should have an isolating valve on the pipework at either side. 