Product Overview
XBC-SOW Diesel Engine Fire Pump Set is a double-suction split-case centrifugal fire pump driven by a diesel engine, designed for high-flow fire protection systems.
It provides reliable fire water supply under power outage conditions and ensures stable hydraulic performance at rated fire duty.
It is applied in industrial plants, municipal fire stations, petrochemical facilities, warehouses, and large commercial buildings.
Model Designation
Applications
- Fire pump rooms requiring diesel-driven backup systems
- High-flow sprinkler and hydrant systems
- Petrochemical tank farms with emergency fire duty
- Power-independent fire protection systems
- Facilities where electrical reliability is limited
Engineering Advantages
- Double-suction impeller structure balancing axial thrust and increasing flow capacity
- Horizontal split-case casing allowing easy maintenance and alignment stability
- Diesel engine direct coupling ensuring independent emergency operation
- Rated fire-duty hydraulic curve compliant with fire protection standards
System Components
XBC-SOW Diesel-Driven Double-Suction Fire Pump Set — Main Components：
- Diesel engine
- Double-suction split-case fire pump
- Flexible coupling
- Common base frame
- Cooling system
- Fuel tank
- Control panel (diesel fire controller)
- Exhaust and silencing system
Technical Parameters
Service Conditions
Designed for emergency fire protection systems operating under rated fire duty conditions.
Operating Conditions
Flow rate: ³/h
Head: m
Power range: kW
Speed: rpm
Liquid temperature: ≤ 80°C
Working pressure: ≤ 2.5 MPa
Detailed parameter tables are provided below.
Diesel Power Loss and Coefficient Table
Power loss depends on altitude and ambient temperature. The reference data below helps ensure proper matching between the diesel engine and the pump.
| EGL (m) | 0°C | 15°C | 25°C | 35°C | 45°C |
|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0.12 |
| 1000 | 0 | 0.07 | 0.10 | 0.14 | 0.20 |
| 2000 | 0 | 0.12 | 0.18 | 0.23 | 0.28 |
| 3000 | 0.10 | 0.16 | 0.23 | 0.28 | 0.34 |
| 4000 | 0.15 | 0.21 | 0.26 | 0.31 | 0.37 |
How to Select a Pump Model
- Determine required rated fire flow and pressure
- Confirm diesel engine power matching full-load fire duty
- Verify suction and discharge pipe diameter based on flow velocity
- Ensure fuel tank capacity meets required continuous operation time
- Check local fire codes for diesel-driven fire pump compliance
Engineering Notes
- Double-suction design reduces NPSH requirement compared to single-suction pumps
- Horizontal split casing allows rotor inspection without pipe dismantling
- Diesel engine starting reliability is critical under emergency conditions
- Foundation rigidity directly affects vibration control
Compliance & Quality Assurance
- Factory hydraulic performance testing at rated fire duty
- Diesel engine load acceptance test
- Dynamic balancing of rotating assembly
- Material certification for pressure-containing components
- Optional third-party inspection before shipment
Safety Notice
- Do not operate without adequate cooling water supply
- Ensure proper fuel system ventilation
- Disconnect battery and power before maintenance
- Avoid overspeed operation beyond rated engine speed
OEM & Customization
This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.
Available options include:
• Diesel engine brand selection
• Fuel tank capacity
• Control panel configuration
• Pump casing material
Configuration is determined based on duty point and project specifications.
FAQs
Q: Can the diesel engine fire pump operate continuously at rated flow?
A: Yes, it is designed for continuous operation under rated fire duty conditions.
Q: What is the allowable working pressure?
A: Maximum allowable working pressure is 2.5 MPa.
Q: Does the pump require priming before startup?
A: Proper priming must be ensured to avoid dry running.
Q: Can the unit be integrated with an automatic fire control system?
A: Yes, it can be integrated with certified diesel fire controllers.
Q: What is the minimum NPSH requirement?
A: It depends on pump size and rated flow; refer to performance data table.
Q: How is axial thrust controlled?
A: Double-suction impeller design inherently balances axial thrust.
Q: What standards does the unit comply with?
A: Designed to comply with fixed fire protection performance requirements.