Product Overview

The Diesel Engine-Driven Multistage Fire Pump is a high-pressure fire pump powered by a diesel engine, designed for applications requiring elevated discharge pressure across multiple pump stages. The multistage configuration delivers reliable fire protection water supply independent of external electrical power, making it ideal for installations where power reliability is a concern.

This fire pump provides excellent starting characteristics and strong overload capacity for dependable operation during fire emergencies. Depending on regional terminology, it may also be referred to as a Diesel Multistage Fire Pump, Vertical Multistage Diesel Fire Pump or Diesel Engine-Driven Multistage Fire Pump.

Key Features

• Excellent starting characteristics for reliable fire pump activation during emergencies
• Strong overload capacity to maintain rated flow under demanding fire protection conditions
• Multistage impeller design delivers high pressure from a compact pump footprint
• Compact structural arrangement for space-efficient pump room installation
• High level of automation for reliable, unmanned operation during fire events
• Simple operation and straightforward maintenance procedures for rapid emergency response

Applications

• Fire hydrant fire suppression systems in commercial and industrial buildings
• Automatic sprinkler fire protection systems requiring elevated supply pressure
• Water mist fire suppression systems for specialised fire protection applications
• Fire protection water supply for residential buildings and high-rise complexes
• Industrial facility fire protection including factories, plants and mines
• Hotel, hospital and commercial building fire hydrant and sprinkler systems

Customer Benefits

Power-Independent Operation

The diesel engine provides reliable fire pump activation without dependence on external electrical power, ensuring fire protection continues during power outages or electrical system failures.

High-Pressure Delivery

The multistage impeller configuration achieves pressures up to 2.4 MPa, making this pump suitable for high-rise building fire protection and long-distance fire water delivery applications.

Strong Overload Capacity

The diesel engine-driven configuration delivers robust overload capacity, maintaining the required flow and pressure under demanding fire protection conditions where extended operation at or above rated capacity may be required.

High Automation Level

Advanced control systems enable automatic start-up, pressure monitoring and fault detection, reducing the need for manual intervention during emergency events and improving system reliability.

Compact and Easy to Maintain

The compact structural design and straightforward maintenance access reduce pump room space requirements and simplify routine inspection and servicing procedures.

Versatile Fire Protection Coverage

With a pressure range up to 2.4 MPa and flow rates up to 100 L/s, the pump serves fire hydrant systems, automatic sprinkler systems and water mist suppression systems across diverse building types and occupancy classifications.

Technical Specifications

Parameter	Specification
Product Type	Diesel engine-driven multistage fire pump
Flow Rate	10-100 L/s
Pressure	0.3-2.4 MPa
Motor Power	30-450 kW
Rotational Speed	2900 / 1800 / 1500 r/min
Drive Type	Diesel engine
Pump Type	Multistage centrifugal pump

Selection Guidance

To select the appropriate diesel engine-driven multistage fire pump, please provide the following information:

• Required flow rate (L/s)
• Required pressure (MPa or bar)
• Fire protection system type (hydrant, sprinkler, water mist)
• Building type and occupancy classification
• Available installation space and pump room dimensions
• Local fuel supply and storage requirements
• Required duty point on the pump curve
• Applicable fire protection standards and codes

Final model selection should be confirmed according to the actual duty point, system requirements and applicable fire protection standards.

Installation and Maintenance

Installation Guidance

The fire pump set should be installed on a rigid, level foundation with adequate clearance for inspection, maintenance and diesel engine ventilation. The suction and discharge piping must be independently supported to prevent load transfer to the pump flanges. A properly sized fuel tank with adequate fuel reserve must be provided for the diesel engine.

Pre-Commissioning Inspection

Before commissioning, confirm the following:

• Pump and diesel engine are securely mounted and level
• Suction and discharge piping connections are complete and leak-free
• Fuel tank is filled with the correct grade of diesel fuel
• Engine coolant and lubricating oil levels are correct
• Starting batteries are charged and connections are secure
• Control panel wiring and settings are verified
• Rotational direction matches the arrow indicated on the pump casing

Routine Maintenance

Regular inspection should include:

• Weekly no-load test run of the diesel engine
• Monthly load test under fire protection system conditions
• Checking engine oil, coolant and fuel levels
• Inspecting batteries and charging system condition
• Verifying that the pump maintains the required flow and pressure during test runs
• Inspecting all pipeline connections for signs of leakage

Available Configurations

• Flow rates from 10 to 100 L/s
• Pressure range from 0.3 to 2.4 MPa
• Diesel engine powers from 30 to 450 kW
• Rotational speeds: 2900 / 1800 / 1500 r/min
• Various stage configurations for different pressure requirements
• Integrated control panels with automatic start and monitoring

FAQs

What is a diesel engine-driven multistage fire pump?

It is a fire pump powered by a diesel engine with a multistage impeller design, delivering high-pressure fire protection water supply independent of electrical power.

What is the flow range?

The available flow range is 10 to 100 L/s, suitable for small to medium fire protection systems.

What is the pressure range?

Available pressures range from 0.3 to 2.4 MPa, suitable for applications requiring elevated supply pressure.

What fire protection systems can this pump serve?

It is suitable for fire hydrant systems, automatic sprinkler systems and water mist fire suppression systems in residential, commercial, industrial and institutional buildings.

Why use a diesel engine instead of electric motor?

A diesel engine provides reliable fire pump operation independent of electrical power supply, ensuring fire protection during power outages or electrical system failures.

What maintenance is required?

Regular maintenance includes weekly no-load test runs, monthly load tests, engine oil and coolant checks, battery inspection and pipeline connection inspection.

Contact Chaodun

For product selection, technical data, performance information or project quotations, please contact Shanghai Chaodun Machinery Manufacturing Group Co., Ltd.

Website: https://cd-pump.cc

Email: Suzion@cd-pump.com

WhatsApp: +44 751 8050 473