XBC Diesel Engine-Driven Single-Stage Fire Pump – Overview
The XBC diesel engine-driven single-stage fire pump is a reliable, self-contained fire protection solution designed for situations where electric power supply may be unavailable or unreliable. Paired with premium domestic or imported diesel engines, the unit delivers excellent starting characteristics, strong overload capacity, and a compact structure that integrates seamlessly into fire protection systems.
With automated control, real-time parameter monitoring, and multiple alarm protections, the XBC series provides dependable fire water supply for hydrant systems, sprinkler systems, and water spray applications across residential, commercial, industrial, and institutional facilities.
Key Technical Parameters
| Parameter | Specification |
|---|---|
| Flow Rate | 15 – 300 L/s |
| Discharge Pressure | 0.32 – 1.8 MPa |
| Engine Power | 30 – 400 kW |
| Rated Speed | 2900 / 1800 / 1500 r/min |
| Operating Temperature | 5°C – 40°C |
| Relative Humidity | ≤ 80% |
Model Designation
Example: XBC 10.0 / 16 – CDW
- XBC: Diesel Engine-Driven Fire Pump Set
- 10.0: Discharge Pressure (MPa) × 10
- 16: Flow Rate (L/s)
- CDW: Chaodun Horizontal Single-Stage Fire Pump
Key Features
Reliable Starting and Overload Capacity
The diesel engine provides excellent cold-start performance and can sustain operation above rated load during emergency demand. Unlike electric motor-driven pumps, the XBC unit operates independently of the municipal power grid — critical during fire events where electrical infrastructure may be compromised.
Automated Operation
When the pump set receives a remote control signal, or detects conditions such as mains power failure or electric pump malfunction, the unit automatically starts and runs. The control system provides automatic sequential process control, real-time data acquisition and display, and automatic fault diagnosis with protective shutdown.
Real-Time Parameter Display
The control panel continuously displays the unit’s operating status and process parameters, including:
- Engine speed (idle and full-speed modes)
- Oil pressure
- Coolant temperature
- Oil temperature
- Battery voltage
- Cumulative running hours
- Operating state: start, running, acceleration, deceleration, shutdown
Comprehensive Alarm and Protection System
The unit monitors multiple safety parameters and triggers alarms or automatic shutdown when thresholds are exceeded:
- Starting failure alarm
- Low oil pressure alarm and automatic shutdown
- High coolant temperature alarm
- High oil temperature alarm
- Low battery voltage alarm
- Low fuel level alarm
- Overspeed alarm and automatic shutdown
Multiple Starting Methods
- Local manual: Start/stop control at the pump panel
- Remote control: Start/stop from a central control room or fire command center
- Automatic power-loss start: Triggers on mains power failure
State Feedback Signals
The control system provides dry-contact output signals for integration with building management or fire alarm systems, including: running indication, starting failure, comprehensive alarm, and control power-on status.
Optional Configurations
- Dual Battery Starting Circuit: If one battery bank fails to start the engine, the system automatically switches to the second bank.
- Mechanical Emergency Start: A hand-magnetic integrated starting device allows manual diesel engine startup if the control cabinet malfunctions.
- Water Jacket Pre-Heater: Ensures reliable cold-weather starting in low ambient temperatures.
- Maintenance-Free Batteries: Eliminates the need for regular electrolyte top-ups.
Application Scenarios
Fire Hydrant Systems
For high-rise buildings, industrial facilities, and large commercial complexes, the XBC diesel fire pump provides a self-sufficient water supply for fire hydrant networks. Its independence from the electrical grid ensures continued operation during power outages — a common occurrence during major fire events.
Automatic Sprinkler Systems
The pump delivers consistent pressure to automatic sprinkler heads across all zones of a protected building. Flow rates from 15 to 300 L/s cover applications from small residential buildings to large industrial plants. The variable speed capability (2900, 1800, 1500 r/min) allows matching pump output to actual system demand.
Water Spray and Deluge Systems
For specialized fire protection applications such as transformer protection, fuel storage areas, and chemical processing facilities, the XBC pump provides the high-pressure, high-volume water delivery required by deluge and water spray systems.
Backup for Electric Fire Pumps
Many fire codes require a backup power source for electric fire pumps. The XBC diesel-driven unit serves as both a primary and standby fire pump, automatically activating when the electric pump fails or mains power is interrupted.
Installation and Commissioning Guidelines
Pre-Installation Checks
- Confirm ambient temperature range: 5°C – 40°C
- Verify relative humidity does not exceed 80%
- Ensure adequate ventilation for engine exhaust and cooling air intake
- Provide minimum clearance of 1 meter on all sides for maintenance access
Engine Selection Note
Under abnormal conditions, the diesel engine may not achieve its rated power output. To ensure reliable fire protection performance, the engine should be sized with adequate margin above the pump’s maximum power requirement.
Commissioning Procedure
- Verify fuel system is filled and bled of air
- Check battery charge level and terminal connections
- Confirm coolant level and oil level are within specification
- Manually rotate the coupling to confirm free movement
- Test manual start from the local control panel
- Verify all alarm sensors respond correctly (simulate low oil pressure, high temperature conditions)
- Test remote start signal from fire command center
- Run the unit at rated speed for 30 minutes, recording all operating parameters
- Verify automatic shutdown on simulated fault conditions
Maintenance Schedule
Weekly Checks
- Inspect fuel level and top up as needed
- Verify battery voltage and charger operation
- Check for fuel, oil, or coolant leaks
- Confirm control panel displays normal status
Monthly Tests
- Run the engine at rated speed for 15–30 minutes under no-load conditions
- Record all operating parameters (speed, oil pressure, temperatures, battery voltage)
- Verify automatic battery charging circuit operation
Annual Service
- Replace engine oil and oil filter
- Replace fuel filters
- Inspect and clean air filter
- Test all alarm and protection circuits
- Perform full-load test with water flow
FAQ
Why choose a diesel-driven fire pump over an electric one?
Diesel-driven pumps operate independently of the electrical grid, making them the preferred choice for critical fire protection applications where power outages could compromise safety. They are especially valuable in regions with unreliable power supply or where fire codes mandate an independent backup power source.
What happens if the starting battery fails?
With the optional dual battery starting circuit, the system automatically switches to the second battery bank if the primary fails to start the engine. Additionally, the maintenance-free batteries are kept at full charge by an automatic float charger during standby periods.
Can the pump operate in cold weather?
The standard operating temperature range is 5°C – 40°C. For colder environments, the optional water jacket pre-heater ensures reliable cold-weather starting by maintaining the engine coolant at an optimal temperature during standby.
What flow and pressure ranges does the XBC series cover?
The XBC series covers flow rates from 15 to 300 L/s and discharge pressures from 0.32 to 1.8 MPa. The engine speed can be set at 2900, 1800, or 1500 r/min depending on the application requirements. If the standard flow or head does not match the system design, the engine speed can be adjusted to align pump output with actual demand.
Why Choose Chaodun Pump
Chaodun Pump manufactures the XBC diesel engine-driven fire pump series with rigorous quality control and comprehensive testing. Every unit undergoes factory performance verification, alarm system validation, and full-load running tests before delivery. Our engineering team provides installation guidance, commissioning support, and ongoing technical assistance to ensure your fire protection system meets all applicable codes and standards.
For technical specifications, fire code compliance documentation, or project consultation, contact our team today.