Electric Multistage Fire Pump
Multistage fire pumps have two or more impellers, each enclosed in its own volute, usually part of a common body. For two-stage pumps, the transfer valve is located at the outlet of the first stage volute. Depending on the desired pump performance, it will direct the water to either the pump discharge (parallel) position or the second stage inlet pressure (in series).
Better Technology Group Co., Ltd. is a company that can provide UL/FM certified multi-stage, multi-outlet pumps. Using multiple impellers to generate more head than a single impeller, multi-stage fire pumps are used in fire protection systems in most high-rise buildings, including offices, hospitals, and hotels.
Multistage pumps have many benefits: the building requires fewer pumps; fewer pipes and valves; no more storage tanks on the intermediate floors; and less load on the building. The cost and space savings are significant: the power requirements are lower and the pump room can be smaller.
Multistage pumps are driven by electric motors or diesel engines and can be used for automatic water spray protection in high-rise and multi-storey buildings.
