... torustik on fluidumi transportimiseks ettenähtud, rõhu all olev süsteem, mis koosneb torust või torudest, toruliitmikest, kompensaatoritest, voolikutest või muudest osadest; ...
Piping includes in particular a pipe or system of pipes, tubing, fittings, expansion joints, hoses, or other pressure-bearing components as appropriate. Heat exchangers consisting of pipes for the purpose of cooling or heating air shall be considered as piping.
