WATER FIRE FIGHTING SYSTEM Russian patent published in 1995 - IPC

FIELD: fire fighting facilities. SUBSTANCE: fire fighting system has Kingston main line 3 with fire pumps 4 whose delivery pipelines 5 with fitted-in non-return shutoff valves 6 are connected to form fire main line. Water draining device has cutoff valves 9 series-connected on drain pipeline. Each valve is connected with corresponding delivery pipeline between pump 4 and non-return shutoff valve 6. Installed directly in fire main line is air bleed valve 11 connected with making contact of pump starting electric circuit. EFFECT: enhanced reliability of operation. 1 dwg