downcomer
1.A downspout. 2. Any pipe in which the flow is substantially vertical.
The vertical portion of an electric conductor used in a lightning protection system to provide a lightning current path from
1. A piping arrangement for a heating (or air-conditioning or refrigeration) system, in which the heating (or cooling) fluid is
The fitting at the base of a downspout that changes the direction of the flow of water, discharging it horizontally,