Overview of Diesel Engine Split-Case Fire Pump
The diesel engine split-case fire pump (XBC series) is a reliable fire protection water supply unit that pairs a horizontal split-case double-suction fire pump with a diesel engine drive. Designed for critical fire suppression applications, this pump set operates independently of electrical power, ensuring stable fire water delivery even during main power failure. The XBC series diesel fire pump set is a standard component in automatic fire water supply systems, working alongside electric fire pumps and jockey pumps to form a complete fire protection network.
Key Features of the XBC Diesel Fire Pump Set
- Reliable diesel engine drive – operates independently of electrical grid, ensuring fire water supply during power outages
- Split-case double-suction design – balanced axial thrust, smooth operation, and high flow capacity for demanding fire suppression scenarios
- Automatic start capability – control cabinet detects fire signals and initiates startup within seconds without manual intervention
- Multiple start modes – manual, automatic, and emergency manual start for maximum operational flexibility
- Comprehensive monitoring and protection – real-time monitoring of oil pressure, water temperature, RPM, battery voltage, and fuel level with automatic alarm and shutdown functions
- Direct-coupled structure – diesel engine and pump connected via coupling on a shared channel steel base, minimizing vibration and simplifying installation
- Wide flow and pressure range – configurable with single-stage, split-case double-suction, or multistage fire pump heads to meet diverse project requirements
- Adjustable speed control – mechanical or electronic governor allows flow and pressure regulation to match actual system demands
Operating Conditions
| Atmospheric Pressure | > 90 KPa |
| Ambient Temperature | 5°C ~ 40°C |
| Relative Humidity | ≤ 80% |
Note: Under abnormal conditions, the diesel engine may not reach rated power. A larger engine should be selected to ensure reliable operation.
Model Designation
- CDS – Horizontal Split-Case Double-Suction Fire Pump End
- XBC – Diesel Engine Fire Pump Set
- 10.0 – Discharge Pressure (×0.1 MPa)
- 160G – Flow Rate (L/s)
Control and Protection Functions
The XBC diesel fire pump set is equipped with a comprehensive control, monitoring, and protection system that supports manual, automatic, and emergency start modes:
Start Functions
- Manual Start – direct startup via control cabinet in manual mode
- Automatic Start – upon receiving valid fire signal, the system automatically starts the diesel engine. Multiple start attempts are allowed; if three consecutive attempts fail, an alarm is triggered
- Emergency Manual Start – direct diesel engine startup when the automatic control system fails
Automatic Operation and Shutdown
When the fire system sends a valid start signal and the electric fire pump cannot operate due to power failure, phase loss, or malfunction, the diesel fire pump set automatically starts. After the fire signal is cleared, the pump set decelerates and stops automatically after a preset delay.
Status Display and Monitoring
The control system monitors and displays: preparation for start, manual/auto start status, running/stopped status, battery charging, diesel RPM, lubricating oil pressure, charging current/voltage, fuel level, and cooling water temperature.
Alarm and Protection
Protection functions include: multiple start failure alarm, overspeed alarm, low oil pressure alarm, turbocharger oil pressure alarm, high cooling water temperature alarm, abnormal oil temperature alarm, charging device fault alarm, low/high battery voltage alarm, low oil level alarm, low fuel level alarm, and low-temperature preheat status indication.
Installation Requirements
Proper installation is critical for reliable operation:
- Leave approximately 1 meter clearance on both sides and in front of the cooling fan/radiator for ventilation, maintenance, and service access
- Room height should be 3-5 meters depending on equipment height and lifting requirements
- Mount the unit on a raised concrete platform with anchor bolts (bolt length = 15× bolt diameter, extending 2× diameter above the hole)
- Ensure adequate ventilation and exhaust in the pump room – temperature should not exceed 40°C
- Route exhaust pipe outdoors with rain protection, minimum bend radius of 2.5× pipe outer diameter, and install a silencer
- Fuel tank capacity should support at least 6 hours of continuous operation
Maintenance Guidelines
- Run the unit at least once every 15 days for a minimum of 15 minutes to ensure readiness
- Check shaft seal condition after each start – adjust or replace as needed
- Regularly replenish bearing lubricating oil or grease
- If the pump is idle for extended periods, drain the pump chamber to prevent freezing damage in low temperatures
- Perform routine diesel engine maintenance: check coolant level, oil level, battery voltage, oil pressure gauge, temperature gauge, and other control devices
Optional Configurations
- Cooling water preheat device – AC220V preheater for reliable cold-weather starting
- Dual battery circuit – redundant battery system for backup starting capability
- Automatic timed inspection – periodic testing of standby pump sets with automatic alarm for abnormal conditions
- Custom configurations – tailored to specific project requirements and operating conditions
Typical Applications
The diesel-driven split-case fire pump is widely used in fire protection systems for:
- Industrial facilities and manufacturing plants
- Commercial buildings and high-rise structures
- Warehouses and logistics centers
- Power plants and energy facilities
- Oil and gas installations
- Hospitals, schools, and public institutions
- Any facility requiring reliable fire water supply independent of electrical power
Why Choose Chaodun Diesel Fire Pump Sets?
Chaodun Pump manufactures XBC series diesel engine fire pump sets with proven reliability in demanding fire protection applications. The split-case double-suction configuration delivers balanced hydraulic performance, while the direct-coupled diesel drive ensures immediate, autonomous operation during emergencies. With comprehensive monitoring, multiple start modes, and configurable protection systems, our diesel fire pump sets meet the strictest fire safety standards.
Chaodun Pump – professional pump manufacturer providing integrated fire protection and water management solutions for commercial, industrial, and municipal applications worldwide.