Book - School of Science and Technology

222 Pumps and other auxiliary equipmentSteam mainCondense mainLiftTrap setFigure 8.19 Lifting condensate to a higher levelCondensate which is formed at individual items of equipment is easy to identify as tosource and, hence, not difficult to deal with. It must not be forgotten, however, that steammains, however well insulated, emit heat and that condensate will thus be formed alongtheir run. Mains should always be arranged to fall in the direction of steam flow andarrangements made to provide drain (or `drip') points at intervals along the runs, as inFigure 8.20.RiseSteam mainSight glassValveStrainerDirtpocketTrapCheck valveFigure 8.20 Steam main relay (to a higher level) and drain (drip) points