Hydraulic Calculations for Fire Sprinkler Systems

Is that hose connection part of an NFPA 14 standpipe system or an NFPA 13 sprinkler system? Getting this wrong can lead to serious hydraulic errors. In this video, we dive deep into the NFPA 13 requirements for hose connections (often called "standby hose connections). We explain why the hose stream allowance is critical for accurate hydraulic modeling and how it protects the efficiency of your sprinkler system during a fire. 🔹 𝐓𝐨𝐩𝐢𝐜𝐬 𝐂𝐨𝐯𝐞𝐫𝐞𝐝: ✅ Introduction ✅ Purpose of Hose Stream Demand ✅ Inside Hose Stream Allowance ✅ Outside Hose Stream Allowance ✅ Hose Stream Demand in Hydraulic Calculations 𝐕𝐢𝐝𝐞𝐨𝐬 𝐑𝐞𝐟𝐞𝐫𝐞𝐧𝐜𝐞𝐝 𝐢𝐧 𝐓𝐡𝐢𝐬 𝐋𝐞𝐬𝐬𝐨𝐧: https://youtu.be/MLzKGlqLcg0?si=B0NKYOoP4C1ocSDO https://youtu.be/M0kZuunL4Ds?si=4kM9047X_AxrXJCi https://youtu.be/nODMNjFXIbQ?si=x4i6RF4k6D4dr8wo https://youtu.be/7u1XLnWYi1U?si=SS0UwN6PSoGmaAYY #FireProtection #NFPA13 #SprinklerDesign #HydraulicCalculations #HoseStreamAllowance #HoseConnection #hesamtavoosi 00:00 Introduction to Hose Stream Allowance 00:46 Why Hose Stream Allowance Matters 01:31 Inside vs. Outside Hose Stream Allowance 01:57 Inside Hose Connection Requirements (NFPA 13) 03:12 The Effective Point in Hydraulic Calculations 03:42 Calculation Examples: Single vs. Multiple Connections 05:37 Placement and Sizing for Small Hose Connections 06:44 Maintaining Protection During Maintenance 07:32 Determining Outside Hose Stream Allowance 08:52 Adding Outside Allowance to Calculations 09:32 Comprehensive Calculation Example 11:13 Independent Water Supplies & Final Resources