Engineered Plumbing Design II – Alfred Steel | Lecture 11, Part 1 – Venting Basics & Equations

Part 1 of Lecture 11 in our Arabic series explores Chapter 8—Vent Systems—from Engineered Plumbing Design II by Alfred Steel. Topics include: Air properties, pressure fluctuations and trap-seal protection. Airflow in drainage stacks and horizontal drains. Vent outlet capacity and friction losses. A worked example calculating airflow demand, velocity and permissible vent length. For junior engineers and anyone developing their plumbing design knowledge. #PlumbingDesign #VentingSystems #DrainageSystems #PlumbingEngineering #MEP #BuildingServices Before publishing: The attached slide still includes Part 04, the additional pressure-budget model we discussed. Remove it if this lecture follows only the book’s calculation method.