Of seven fluorin propane fire extinguishing equipment (42 mpa) by bottle rack, fire extinguishing agent group, container valve, metal hose, one-way valve (agent piping), choice of collector tube, safety relief devices, valves, signal feedback device, fire extinguishing agent pipeline, nozzle, drive type gas bottle group, the electromagnetic drive device, driving gas pipeline, one-way valve (driver) gas pipeline, etc. According to the requirements of different application sites, it can be composed of unit independent system and combined distribution system, adopting full submersion fire extinguishing method, realizing fire protection for single protection area and multi-protection area, with advanced technology, high fire extinguishing efficiency and convenient maintenance.