Diesel Fire Pump Set – Automatic Control with Pressure Monitoring for Improved Operation Management
The diesel fire pump unit integrates a main diesel pump, a jockey pump, a control cabinet, and pressure monitoring devices; it supports automatic control, pressure management, and various parameter configurations, making it suitable for fire water supply systems in industrial facilities, warehouses, and large-scale buildings.
The diesel fire pump set is an integrated fire water supply system comprising a diesel-driven main fire pump, a jockey pump (pressure-maintaining pump), a control cabinet, pressure monitoring devices, a pressure tank, and associated piping accessories. It is suitable for fire water supply applications in industrial plants, logistics warehouses, docks, airports, energy facilities, and large-scale buildings. The system utilizes a diesel engine as the independent power source for the main fire pump and employs a control system for the centralized management of both the main fire pump and the jockey pump, making it highly adaptable for fire protection systems requiring backup power capabilities. Its automatic control functions manage pump operation based on pressure fluctuations within the fire water piping network; when network pressure meets specific control criteria, the system automatically starts or stops the jockey pump or main fire pump according to preset logic—with specific control methods determined by project design and equipment configuration. Pressure monitoring devices, such as pressure gauges and sensors, continuously track the pressure status of the network and equipment, providing signals for automatic control and operational assessment while allowing operators to monitor the system’s working state. The jockey pump typically features a low-flow, high-head configuration designed to compensate for minor pressure losses in the network, maintain the system within the target pressure range, and prevent unnecessary activation of the main fire pump during periods of low water demand. The pressure tank serves to store pressure and provide a buffering effect; working in conjunction with the jockey pump and pressure control components, it enhances the stability of network pressure management. The diesel main pump handles the primary water supply duties when fire water demand increases; structural configurations—such as single-stage, end-suction, horizontal split-case (double-suction), or multi-stage pumps—are selected based on project requirements, with the diesel engine power matched to the design flow rate, head, pressure, and site conditions. According to product specifications, these diesel fire pump sets can be configured with components including the diesel main pump, jockey pump, pressure tank, pressure sensors, control cabinet, valves, and common suction/discharge piping; the control cabinet provides automatic control for the pumps and includes overload and overcurrent protection functions. The equipment utilizes a centralized base structure that integrates the power system, pumping system, pressure control components, and auxiliary piping. This design minimizes the installation effort associated with scattered on-site configurations while facilitating subsequent inspections, maintenance, and equipment management. Depending on the specific series and project requirements, these diesel fire pump sets offer a wide range of flow rates and discharge heads—for instance, certain models support flow rates of 30–9,000 GPM and heads of 3–20 bar—though precise performance parameters must be determined based on fire protection design specifications, water source conditions, piping network resistance, and the selected model. Overall, by integrating independent diesel power, automatic control, pressure monitoring, pressure stabilization, and centralized equipment layout, this system combines fire water supply with operational management capabilities; it not only meets diverse flow and pressure requirements but also simplifies installation and maintenance, making it a highly practical, all-in-one solution for fire water supply systems in industrial facilities and large-scale buildings.
