A fire fighting pump set typically comprises three main components: the jockey pump, the diesel pump, and the electrical pump. The jockey pump is a small, high-pressure pump that maintains the system’s pressure within an optimal range when the main pumps are not in operation. It ensures that there is always sufficient water pressure available for immediate use in case of a fire emergency. The diesel pump, powered by a diesel engine, is the primary pump used in fire suppression systems when there is a loss of electrical power. It provides high-volume water flow at high pressure to extinguish fires effectively. The electrical pump serves as an alternative power source for the fire fighting system and operates using electricity from the grid when available.
During normal operation, the jockey pump remains active to maintain system pressure, ensuring that the fire suppression system is always ready for use. In the event of a fire, if the pressure drops below a certain threshold, the jockey pump activates automatically to restore the pressure. If the electrical power supply fails, the diesel pump starts automatically to provide water flow to the fire suppression system. Simultaneously, the electrical pump stands ready to take over if the electrical power is restored, ensuring continuous operation of the fire fighting system. This combination of pumps ensures redundancy and reliability in fire suppression systems, providing effective fire protection in various scenarios and conditions.
The three main types of firefighting pumps are the split case fire pump, end suction fire pump, and vertical turbine fire pump. Each type has distinct features and applications tailored to different firefighting scenarios.
The split case fire pump is characterized by its horizontally split casing, allowing for easy access to internal components for maintenance and repairs. This type of pump is commonly used in large-scale fire protection systems, such as industrial facilities, high-rise buildings, and municipal water supply systems. It offers high flow rates and is capable of delivering large volumes of water at high pressure to extinguish fires effectively.
The end suction fire pump features a single suction impeller and casing, making it compact and versatile. It is often utilized in smaller-scale fire protection systems, such as residential buildings, commercial properties, and small industrial facilities. End suction pumps are known for their reliability, ease of installation, and cost-effectiveness, making them suitable for a wide range of applications.
The vertical turbine fire pump consists of a vertical shaft and multiple impellers stacked on top of each other. This design allows for efficient water delivery from deep wells or reservoirs, making it ideal for applications where the water source is located below ground level. Vertical turbine pumps are commonly used in rural areas, agricultural settings, and locations with limited access to surface water. They offer high efficiency and can operate continuously to supply water for firefighting purposes.