Fire monitor/cannon is mainly composed of base, water inlet pipe, rotary body, inlet pipe,pattern adjustment ring,handwheels,lifting handle and locking mechanism. The monitor/ cannon has a wide pressure range, a long firing range and can implement jet stream and fog pattern. It’s an important fire-fighting equipment for long-distance fire fighting. It could be divided into two series: fire water monitor and fire foam monitor.Fire water monitor/cannon is a fire-fighting equipment for spraying water and extinguishing general solid substances from a long distance, and fire foam monitor/cannon is a fire-fighting equipment for spraying air foam to extinguish Class A, B, and C liquid fires from a long distance. It is suitable for petrochemical enterprises, storage tank farms, hangars, warehouses, port terminals and other places, and an ideal vehicle-mounted fire monitor /cannon for fire trucks.