🔧 Waterflow Alarm Devices- Part 2 (NFPA 13/13R/13D/72)

In the first part of our waterflow alarm video, we explored the different types of waterflow alarm devices—such as the alarm check valve and the vane‑type flow switch—and we reviewed their installation rules and sensitivity ranges. In Part 2, we move deeper into the system. We start with the pressure switch, review the electrical and mechanical waterflow alarm time limits required by the standards, including a breakdown of the 100‑second requirement in NFPA 72 and then examine whether all sprinkler systems actually require a waterflow alarm according to NFPA 13, NFPA 13R, and NFPA 13D. Finally, we walk through the requirements for the alarm test connection across different system types, including wet, dry, preaction, and deluge systems. 🔹 𝐓𝐨𝐩𝐢𝐜𝐬 𝐂𝐨𝐯𝐞𝐫𝐞𝐝: ✅ Pressure Switch Requirements & Role ✅ Waterflow Alarm Devices Time Limits ✅ Breaking Down the 100‑Second Requirement per NFPA 72 ✅ Do All Systems Need a Waterflow Alarm? (NFPA 13 / 13R / 13D) ✅ Alarm Test Connection for Wet, Dry, Preaction & Deluge Systems 𝐑𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐞𝐝 𝐏𝐫𝐞𝐫𝐞𝐪𝐮𝐢𝐬𝐢𝐭𝐞 𝐕𝐢𝐝𝐞𝐨𝐬:    • 🔧 Waterflow Alarm Devices- Part 1(NFPA 13/...   #FireProtection #LifeSafety #NFPA13 #NFPA13R #NFPA13D #SprinklerSystems #WaterflowAlarm #NSVCad #RahilKiaghadi