Product Overview

XBC-ISW Diesel Engine Fire Pump Set is a horizontal inline centrifugal fire pump driven by a diesel engine, designed for building and industrial fire protection systems.

It ensures stable rated fire flow and pressure under power outage conditions through autonomous diesel operation.

It is applied in commercial buildings, high-rise facilities, industrial plants, and municipal fire protection networks.

✔ For fire protection systems requiring compact inline installation and independent diesel-driven emergency operation

Model Designation

XBC-ISW Diesel Engine Fire Pump Set – Horizontal Inline Fire Pump

Applications

Fire pump rooms with space-limited inline piping layout
High-rise building sprinkler and hydrant systems
Industrial workshops requiring diesel backup fire protection
Municipal fire pipeline booster stations
Facilities with unreliable grid power supply

Engineering Advantages

Horizontal inline structure enabling direct pipeline installation and compact footprint
Single-stage hydraulic design providing stable fire-rated performance curve
Diesel engine direct coupling ensuring independent emergency operation
Rigid base-frame integration improving alignment stability and vibration control

✔ Engineered for fire systems requiring compact inline layout and diesel-powered emergency reliability.

System Components

XBC-ISW Diesel In-Line Fire Pump — Components：

Diesel engine
ISW horizontal inline centrifugal fire pump
Flexible coupling
Common base frame
Cooling system
Fuel tank assembly
Diesel fire control panel
Exhaust and silencing system

Technical Parameters

Service Conditions

Designed for rated fire duty operation under emergency conditions.

Operating Conditions

Flow rate: /h
Head: m
Power range: kW
Speed: rpm
Liquid temperature: ≤ 80°C
Working pressure: ≤ 1.6 MPa

Detailed parameter tables are provided below.

Diesel Power Loss Table

The diesel power loss varies with altitude and temperature. Reference the table below for selection:

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
Verify diesel engine power matches full-load fire duty
Confirm pipeline diameter compatibility with inline pump flange size
Check allowable working pressure of system pipeline
Evaluate required autonomous operating duration for fuel capacity selection

✔ Model selection must be based on rated fire flow, pipeline configuration, and required autonomous emergency duration.

Engineering Notes

Inline structure simplifies piping alignment and reduces installation complexity
Single-stage design reduces maintenance complexity compared to multistage pumps
Diesel engine starting reliability must meet fire system emergency standards
Proper foundation rigidity improves vibration stability

Compliance & Quality Assurance

Factory hydraulic performance test at rated fire duty
Diesel engine load and start-up reliability test
Dynamic balancing of rotor assembly
Pressure test for pump casing
Optional third-party inspection before shipment

Safety Notice

Do not operate without ensuring proper priming
Ensure cooling system functions before operation
Disconnect battery before maintenance
Avoid operation beyond rated 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
• Motor voltage & frequency (for optional electric backup)
• Control panel configuration
• Pump casing material

Configuration is determined based on duty point and project specifications.

FAQs

Q: Can the pump operate continuously at rated fire duty?
A: Yes, it is designed for continuous operation under rated fire conditions.

Q: What is the maximum allowable working pressure?
A: Maximum allowable working pressure is 1.6 MPa.

Q: Can the unit operate under automatic fire control system?
A: Yes, it supports integration with certified diesel fire controllers.

Q: What is the allowable liquid temperature?
A: Maximum allowable liquid temperature is 80°C.

Q: How is axial thrust controlled in this design?
A: Axial thrust is controlled through hydraulic balancing in the impeller and bearing system.

Q: Can the pump be integrated with VFD?
A: Diesel-driven configuration typically operates at fixed rated speed; VFD is not applicable to diesel engine drive.

Q: What standards does the unit comply with?
A: Designed in accordance with fixed fire protection system performance requirements.