System Component and Hardware Series

In continuation of our component series, this video focuses on check valves. In Part 1, we review the fundamental definitions and operational principles. We examine their behavior under fire conditions and clarify the essential role they play in preserving system integrity and preventing reverse flow. This first part establishes the foundation. In Part 2, we’ll move into the specific types of check valves—including swing, shotgun, alarm check valves, and backflow prevention assemblies, along with their limitations, design considerations, and the critical points every engineer and inspector must pay attention to. 🔹 Topics Covered ✅Definition — What a check valve is and how it functions ✅Primary Function of Check Valves — Preventing reverse flow and maintaining system integrity ✅Why Each Water Supply Requires a Check Valve — NFPA 13 logic for multi‑source protection ✅Check Valve Requirements for FDCs ✅Water Supply Illustration — Example of a sprinkler system supplied by three water sources ✅Control Valves with Check Valves — Where NFPA 13 requires a control valve + check valve combination #FireProtection #NFPA13 #NFPA14 #SprinklerDesign #StandpipeSystem #FDC #FireSafety #EngineeringEducation #NSVCAD #RahilKiaghadi