The need for a fire pump in a building depends mainly on its height, use, fire requirements, and local fire codes. Such as high-rise buildings, large commercial or residential areas, large industrial plants and warehouses and so on.
The fire pump unit will have a pump and a driver. Manufacturers must provide a detailed performance curve. This curve should include flow, head, cavitation margin, power, efficiency, and other important parameters.e and a special control cabinet.
A set of fire pumps consists of a working pump and a backup pump from the same fire water supply system. Fire pump manufacturers must give a detailed chart showing how the pump works. It should include flow, pressure, power, efficiency, and other important details.
The selection and application of fire pump should comply with the following provisions:
The fire pump should meet the flow and pressure requirements of the fire water supply system.
1) The driver for the fire pump needs to have sufficient power.
2) This allows the pump to operate effectively at any point on its performance curve.
3) When using the fire pump driven by the motor, select the fire pump installed by the motor.
4) The curve showing how well the pump works should be smooth, with no bumps or sudden changes. The pressure when there is no flow should be between 120% and 140% of the planned pressure.
5) When the discharge flow is 150% of the design flow, the outlet pressure should not be lower than 65% of the design pressure;
6) The sealing method and material of the pump shaft should meet the requirements of the fire pump operating at low flow;
7) The type of fire pump in the same pump group should be the same, and the working pump should not exceed 3;
8) When connecting multiple fire pumps together, ensure to check how the flow affects the pressure at the outlet.
The main material of the fire pump should meet the following requirements:
1) The pump shell should be nodular cast iron;
2) The impeller should be bronze or stainless steel.
Typically, buildings taller than 18 meters (about 6 floors) require a fire pump. As buildings get taller, the water pressure from the ground source may not be enough for firefighting. To improve fire extinguishing ability, it is important to increase water pressure and volume.
Fire pumps are crucial in tall buildings because they help maintain water pressure despite height and hydraulic loss. The fire pump helps make sure that if there is a fire, the water can reach and put out the fire.
Certain buildings like high-rise civil buildings and workshops must have automatic sprinkler systems to comply with fire codes. These systems often have fire pumps to ensure automatic water spraying if a fire occurs.
Fire pump manufacturers must give a detailed chart showing how the pump works. The fire pump should have flow, pressure, power, efficiency, and other important details.
The fire pump should have important details like flow, pressure, power, and efficiency. It is necessary for buildings with a large fire area or basic fire equipment. Firefighters will need to use a fire pump in such cases. This is necessary to put out the fire effectively.
When designing and building buildings, it’s important to follow fire codes for fire fighting equipment like fire pumps. This ensures that firefighters can quickly and effectively respond to fires and rescue people.
