System Component and Hardware Series

In continuation of our component series, this video moves into the specific types of check valves used in fire protection systems. In Part 1, we established the foundation, reviewing definitions, operational principles, behavior under fire conditions, and the essential role check valves play in preventing reverse flow and preserving system integrity. Now, in Part 2, we focus on the devices themselves. We’ll break down the characteristics, applications, and limitations of swing check valves, shotgun checks, alarm check valves, and backflow prevention assemblies. We also highlight the critical design considerations and inspection points that every engineer and AHJ must pay attention to. 🔹 𝐓𝐨𝐩𝐢𝐜𝐬 𝐂𝐨𝐯𝐞𝐫𝐞𝐝: ✅ Swing Check Valves: Operation, installation orientation, and common limitations ✅ Shotgun Check Valves: High‑flow applications and pressure behavior ✅ Alarm Check Valves: Trim components, retard chambers, and alarm logic ✅ Backflow Prevention Assemblies: RPZ, DCDA ✅ Design Considerations: Flow characteristics, pressure loss, and system reliability 📺 𝐑𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐞𝐝 𝐏𝐫𝐞𝐫𝐞𝐪𝐮𝐢𝐬𝐢𝐭𝐞 𝐕𝐢𝐝𝐞𝐨𝐬: https://www.youtube.com/watch?v=EzluVVExcK0 #FireProtection #NFPA13 #NFPA14 #SprinklerDesign #StandpipeSystem #FDC #FireSafety #EngineeringEducation #NSVCAD #RahilKiaghadi