When fire strikes in locations without reliable grid power, having an independent, self-sufficient water supply system can mean the difference between containment and catastrophe. The XBC Diesel Engine Deep Well Long-Shaft Fire Pump is engineered for exactly these critical scenarios — drawing water from deep wells, reservoirs, and remote water sources to deliver consistent fire protection flow and pressure when electricity is unavailable.
Manufactured by Chaodun Pump, this pump group is designed and tested in compliance with relevant national fire pump standards, combining a multi-stage centrifugal impeller assembly, vertical column pipe, drive shaft, right-angle gearbox, and diesel engine into a single integrated unit. It serves fixed fire protection systems across industrial facilities, high-rise buildings, municipal infrastructure, docks, and offshore platforms.
How the XBC Diesel Long-Shaft Fire Pump Works
The pump group consists of multiple centrifugal impellers and diffuser shells mounted deep within the well or water source, connected via a vertical column pipe and concentric drive shaft to an H-type right-angle gearbox and diesel engine assembly positioned above ground. The diesel engine delivers rotational power through the gearbox and shaft to the submerged impeller stack, generating the flow and pressure required by the fire protection network.
Because the system runs on diesel fuel rather than electricity, it operates independently of the power grid — making it ideal for remote installations, offshore platforms, dockyards, and industrial sites where grid reliability cannot be guaranteed during emergencies.
Key Design Features
- Independent diesel power source — No grid electricity required; operates during power outages and in off-grid locations.
- Deep well water extraction — Multi-stage impeller design draws from deep wells, reservoirs, and natural water sources.
- H-type right-angle gearbox — Efficient power transfer from horizontal diesel engine to vertical pump shaft.
- Wide performance range — Flow from 30 to 220 L/s, head from 42 to 200 m, power from 30 to 1000 kW.
- Three starting modes — Manual, automatic (fire signal-triggered), and forced start (controller bypass) for maximum reliability.
- Flexible speed options — Available at 1500, 1800, and 3000 r/min to match system requirements.
- Dual-purpose capability — Suitable for both fire protection and domestic/production water supply when configured appropriately.
Technical Specifications
| Parameter | Value |
|---|---|
| Flow Rate (Q) | 30 – 220 L/s |
| Head (H) | 42 – 200 m |
| Power (N) | 30 – 1000 kW |
| Speed (n) | 1500 / 1800 / 3000 r/min |
| Design Standard | Complies with relevant national fire pump design and testing standards |
| Model Designation | XBC — Diesel Engine Fire Pump; GJ — Deep Well Type |
| Drive Type | H-type right-angle gearbox + concentric vertical drive shaft |
| Applicable Media | Clear water without solid particles; chemically similar liquids |
Installation Guidelines
Proper installation is essential for reliable operation. The XBC diesel long-shaft fire pump group should be installed indoors on a level, vibration-free concrete foundation. After positioning, level the unit and secure it through anchor bolt holes in the base plate. Drain channels and collection pits should be provided around the installation area for maintenance drainage.
During lifting operations, apply force only to the chassis — never lift from the pump or diesel engine lifting points. The indoor layout must account for diesel engine cooling: exhaust air from the radiator should be ducted outdoors when possible, or maintain adequate clearance from obstructions for ventilation.
Users should fabricate their own exhaust piping with gentle bends to avoid restricting engine output. The exhaust outlet should slope slightly downward when venting outdoors. A flexible coupling should connect the exhaust pipe to the diesel engine to prevent misalignment stress.
The fuel tank should provide 4–6 hours of continuous operation and be mounted at approximately 1.5 meters above the diesel fuel transfer pump. The discharge piping must have independent supports — never rest pipe weight on the pump body. Install flexible joints at the pump outlet to absorb operational vibration. Pressure gauges should be mounted approximately two pipe diameters from the flange, away from elbows and valves, for stable readings.
Startup and Operation
Pre-Start Checklist
- Verify engine oil level — the dipstick indicator should be between the full marks. Use 15W/CF40 grade diesel engine oil. Never mix different brands or grades of oil.
- Check coolant level — fill the radiator to capacity and confirm all water valves are closed.
- Confirm adequate fuel supply and that air has been purged from the fuel system. Use 0# diesel under normal conditions; switch to -10# or lower when ambient temperature drops below 5°C.
Manual Start/Stop
- Turn the panel power switch to the controller position.
- Press MANUAL to select manual mode.
- Press START to start the diesel engine.
- Press STOP to shut down; if unresponsive, press the red EMERGENCY STOP button.
Automatic Start/Stop
- Turn the panel power switch to the controller position.
- Press AUTO to select automatic mode.
- The diesel engine starts automatically upon receiving a fire protection signal.
- The engine stops automatically when the fire signal is cancelled.
Forced Start (Controller Bypass)
- Turn the panel power switch to the FORCED position.
- Press the FORCED SWITCH to start the diesel engine.
- Press the red EMERGENCY STOP button to shut down.
Application Scenarios
Offshore platforms and dockyards — Where grid power is unreliable or unavailable, the diesel-driven system ensures fire protection water supply from seawater or freshwater wells.
Industrial facilities and mining operations — Remote sites often lack stable electrical infrastructure. The XBC pump provides independent fire water extraction from deep wells and surface reservoirs.
High-rise building fire protection — As a backup water supply source for hydrant and sprinkler systems in large-scale construction projects.
Municipal water supply — When configured for dual use, the system can serve both fire protection and daily water supply needs for residential and production applications.
Frequently Asked Questions
What water sources can the XBC pump draw from?
Deep wells, reservoirs, cisterns, and other water sources — the multi-stage impeller design provides the suction and lift capability for deep water extraction.
How long can the diesel engine run continuously?
The fuel tank is typically sized for 4–6 hours of operation. Extended runtime requires a larger tank or fuel supply connection.
Can it operate in cold weather?
Yes. Use -10# or lower-grade diesel when ambient temperature falls below 5°C, and ensure coolant is at appropriate levels before operation.
What happens if the controller fails?
The forced start mode bypasses the controller entirely, allowing direct manual activation of the diesel engine as a backup.
What media can it handle?
Clean water without solid particles and liquids chemically similar to water. It is not designed for abrasive or corrosive media.
Why Choose Chaodun Pump
Chaodun Pump manufactures fire protection equipment designed and tested in compliance with relevant domestic fire pump standards. The XBC Diesel Engine Deep Well Long-Shaft Fire Pump combines reliable diesel-powered operation with deep well water extraction capability, providing a self-contained fire water supply solution for the most demanding installations. With three starting modes, a wide performance range, and flexible configuration options, it delivers consistent performance when it matters most.
For technical specifications, installation support, or project consultation, contact the Chaodun Pump engineering team.