PS series fire fighting water cannon is a new type of multi-functional fire fighting equipment with high pressure resistance and high strength materials. It can be equipped with various fire engines, fire boats, fixed fire turrets and fire pipelines. The gun nozzle is designed on the principle of diversion, with large flow, concentrated water flow, long range, multiple functions, which can be used for direct current and spray injection. The flow can be adjusted in the range of (20-50L/S) according to the requirements. The operation is flexible and convenient, the gun body can rotate horizontally and pitch, and the positioning and locking functions can be realized, which is conducive to operation. Personnel evacuated from the scene and implemented unmanned operation.