Automatic Electric Fire Pump System for Coordinated Fire Water Supply and Pressure Stabilization
The automatically controlled electric fire pump system integrates a main pump, a jockey pump, a control cabinet, and a pressure tank. It supports automatic start/stop and pressure monitoring, delivering stable, efficient fire water supply and continuous pressure maintenance, making it suitable for buildings, industrial facilities, and large-scale fixed fire protection systems.
The automatic electric fire pump system is an integrated fire water supply package comprising a main fire pump, a jockey pump, a control cabinet, a pressure tank, and associated valves and piping accessories. By coordinating the main pump’s water supply with the jockey pump’s pressure maintenance function, the system ensures a stable and continuous water supply for building and industrial fire protection networks. Powered by electric motors, the system features rapid startup response, stable operation, and convenient control, making it ideal for fixed fire protection systems that demand high reliability and automation. The equipment utilizes a centralized, skid-mounted design with major components installed on a common base; this minimizes on-site interconnection work and results in a compact layout for piping and electrical controls, thereby facilitating space planning and installation within the fire pump room. The jockey pump maintains the fire network’s baseline pressure; it automatically activates in response to pressure signals to compensate for minor drops, thereby preventing frequent cycling of the main fire pump and keeping the network pressure within the set range. When there is a significant demand for fire-fighting water, the electric main fire pump rapidly engages to deliver the required flow rate and pressure. The associated control cabinet enables automatic operation of both the main and jockey pumps and includes protective features such as overload and overcurrent protection; it also integrates devices like pressure sensors and gauges to monitor system status, enhancing operational management. Various types of electric fire pumps—including end-suction, horizontal split-case (double-suction), vertical split-case, vertical in-line, and multistage pumps—can be selected based on the specific flow, pressure, and piping requirements of the project, accommodating diverse building heights, supply distances, and system scales. The equipment offers a flow range of 14–2700 GPM and a head of approximately 12–80 m, with rotational speeds configurable between 740 and 2900 r/min depending on the pump model. The jockey pump features a low-flow, high-head design—typically with a higher head rating than the main pump—to enable rapid compensation for pressure fluctuations in the network. The system can be configured with pressure tanks of various capacities—such as 25, 50, 75, or 100 liters—and operating pressures of 0.6, 1.0, or 1.6 MPa to meet the specific pressure requirements of different fire-fighting piping networks. Materials for the pump body and wetted parts—including cast iron, stainless steel, and bronze—can be selected based on the medium and operating environment, ensuring a balance between mechanical strength and corrosion resistance. Featuring automatic control, centralized installation, and coordinated operation between the main pump and the pressure-maintenance pump, the system simultaneously addresses daily pressure maintenance and emergency fire-fighting water supply needs; it is suitable for warehouses, docks, airports, petrochemical facilities, power plants, liquefied gas installations, textile mills, ships, and other locations requiring fixed fire-fighting water supply systems.
