The diesel pump set

Small-power diesel fire pump units are compact in structure and have independent power design. They feature rapid start-up, stable water supply and high reliability. They are suitable for temporary fire protection projects, decentralized fire protection deployment and backup fire protection systems. They can still ensure fire safety and continuous water supply in the event of no power or power outage.

The minimum fire rated pressure of ED small fire fighting package set water supply equipment is 3 bar and the minimum fire rated capacity is 25 GPM. ED small fire fighting package set water supply equipment includes at least two power or power source driven pumping units, pressure tanks, pipes, valves and accessories, measurement and control instruments, control cabinets, outdoor rain cover, etc.
Motor: Three-phase asynchronous squirrel-cage motor independently developed and manufactured by our company, which can be controlled in production time and greatly shorten the whole set production time.
Diesel Engine: According to the different parameters of customers, we will choose diesel engines with high cost performance ratio. The main brands are QuanChai, Weichai, ShangChai, FAWDE, Cummins, etc.
Electric Pumps: Electric pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Diesel Pumps: Diesel pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Electronic Components: The main electric components is CHNT, if Schneider or other brand electrical are need, should mention it before place the order.
Safety Valve plays a safety protection role in the system. When the system pressure exceeds the prescribed value, the safety valve opens, and a part of the gas/fluid in the system is discharged into the atmosphere/pipeline, so that the system pressure does not exceed the allowable value, so as to ensure that the system does not cause accidents due to excessive pressure.
Pressure Tank: Water is a non-compressible medium. Generally speaking, the pressure drop of fire-fighting pipe network is normal. However, the pressure drop is very slow, the total loss of water in the pipe network isnot large, and the frequent change of pressure in the pipe network leads to frequent start-up and shutdown of pumps. Especially when the power of equipment is high, it will cause great impact on pressure sensors, relaysand motors, thus affecting the performance and life whole equipment. Therefore, it is necessary to choose the right volume of the pressure tank.

Designed for harsh environments, the outdoor fire pump system features waterproof, dustproof, and corrosion-resistant features, making it suitable for fire water supply in factories, docks, chemical plants, and remote buildings. Driven by a high-efficiency diesel engine or electric motor, its intelligent control system enables automatic start/stop and remote monitoring, ensuring stable and reliable water supply. Its energy-saving, durable design, easy maintenance, and robust construction make it an ideal choice for firefighting needs in a variety of extreme environments.

Fire pump system is made of Diesel+Jockey pump
1. Diesel engine pump, can use single stage pump, horizontal split case pump, end suction pump, multistage pump, material can be cast iron, stainless steel, and bronze impeller , with fuel tank, water tank，fan, control box
2. Jockey pump, horizontal or vertical, capacity will be small, but head should be higher than electric and diesel engine pump
Jockey material casing: cast iron, shaft and impeller: SS304

Diesel engine-driven fire pump units are designed specifically for industrial fire water supply systems. They feature high reliability, large flow rate, high head, and automatic start-up. They are widely used in fire protection systems of factories, petrochemical plants, power facilities, and large buildings, providing a stable and reliable fire water source for emergency fire suppression.

EDJ fire fighting package set is composed of diesel fire pump, electric pump, jockey pump.
Electric pump can choose single-stage pump, horizontal split case pump, end suction pump, multistage centrifugal pump, vertical turbine pump which are made of cast iron or stainless steel. Regarding to the impeller, we also could choose the bronze impeller.
Diesel fire pump, the flow is same as the electric pump. The diesel engine is combined by high elastic coupling or universal joint connection. The diesel fire set also includes fuel tank, water tank, fan, control panel and other components.
Jockey pump which is horizontal or vertical. Normally, it has the characteristics of small flow and higher head (more10-15m head than the electric pump and diesel pump).

·UL Standard
Flow：50-3000 GPM
Head： 5-20 Bar (72.5-290 psi)
Speed：740-2900 r/min
·Non-UL Standard
Flow：30-9000 GPM
Head： 3-20 Bar (40-300 psi)
Speed：740-2900 r/min

Pressure-stabilizing pumps provide reliable, 24/7 fire protection by stabilizing water pressure, offering energy-efficient and efficient operation, and intelligent control. With their rapid response, compact design, and multiple safety features, they are widely applicable to high-rise buildings, industrial sites, and public facilities, enhancing overall fire safety.

This electric fire pump system features an integrated design that combines the pump, motor, control panel, pressure tank, and other core components on a single base. Its compact structure minimizes the footprint, making it ideal for space-sensitive installations.
Fully assembled and tested before delivery, this unit only requires connection to inlet/outlet pipes and a power source on-site—enabling fast and easy commissioning while significantly reducing installation time.
The intelligent control panel supports automatic start/stop, pressure monitoring, and fault alarms, offering high stability and quick response. It is especially suitable for commercial buildings, residential complexes, and industrial facilities that demand high fire protection performance and system reliability.
This is an efficient, safe, and easy-to-install solution tailored for modern fire safety systems.

EEJ Fire Pump Set means 2 electric pumps and 1 Jockey pump. The rated pressure is less than 150m. The speed is 2950 to 3550 RPM.

Product Overview
Product Introduction of EDJ Fire Pump System
1. Electric pump, can use single stage pump, horizontal split case pump, end suction pump, multistage pump, material can be cast iron, stainless steel, and bronze impeller 
2. Diesel engine pump, with capacity and head equal to electric pump, with fuel tank, water tank，fan, control box
3. Jockey pump, horizontal or vertical, capacity will be small, but head should be higher than electric and diesel engine pump
4. Control panel: Auto Control of electric pump, diesel engine pump and Jockey Pump with overload, over current protection。
5. Accessories: check valve, gate valve, pressure vessel, generally 0.6mpa, 1.0mpa, 1.6mpa, Pressure Gauge, Pressure Sensor, Common Pipe for Suction and Discharge, Flexible Joints and Flanges, Common Base plant

The vertical pressure-stabilizing tank system is a highly efficient and intelligent fire-fighting pressure-stabilizing device with advantages such as automatic pressure regulation, energy-saving operation, small footprint, and easy maintenance. It is widely used in high-rise buildings, industrial plants, underground garages, and public facilities. It provides continuous and stable water pressure support for fire-fighting pipe networks, ensuring rapid system response and safe and reliable operation. It is an ideal choice for modern fire water supply systems.

Discover the benefits of diesel fire pumps for industrial and commercial fire protection systems. Learn how these reliable, efficient, and easy-to-maintain pumps provide essential firefighting capabilities, even during power outages. Ideal for harsh environments, diesel fire pumps ensure optimal safety and fast response in emergencies.

·UL Standard
Flow：50-3000 GPM
Head： 5-20 Bar (72.5-290 psi)
Speed：740-2900 r/min
·Non-UL Standard
Flow：30-9000 GPM
Head： 3-20 Bar (40-300 psi)
Speed：740-2900 r/min

Electric motor fire pumps are used in various water environments, not only to meet the general water supply but also to be a good helper for fire water. The electric motor fire pump is manufactured with good structure and workmanship. It has a wide range of performance, and is easy to use and operate for a long time. The motor fire pump is aimed at various fire water environments, so the selection should also be based on the actual demand environment, performance parameters, etc.

With the continuous development of society, people have higher requirements for the quality of life, and the safety of diesel engine fire pumps is more important. All places need to be equipped with fire-fighting facilities, and fire pumps are water intake equipment for fire-fighting facilities. The fire pumps we commonly use are electric fire pumps and diesel engine fire pumps. The difference between them is that electric fire pumps need power system supply. In case of power failure, the diesel engine fire pump can be started at any time to make up for the original position of the electric fire pump.

In fire protection systems, maintaining a stable and continuous water supply is crucial for effective fire response. The diesel engine fire pump set shown in the image is specifically designed to enhance system reliability, making it an ideal choice for high-rise buildings, industrial facilities, and commercial premises.

This pump set is powered by a high-performance diesel engine with independent energy capabilities, ensuring continuous operation even during power outages. This feature significantly improves emergency response capability, providing essential time for fire suppression.

Additionally, the pump set is equipped with an intelligent automatic start system. When a drop in water pressure or a fire signal is detected, the diesel engine activates promptly, ensuring the fire suppression system can operate without delay. The control panel displays key data, including water pressure and engine speed, for real-time monitoring and easy operation.

The pump set also features a modular, compact design that simplifies installation and saves space. Key components are made from high-temperature-resistant and corrosion-proof materials, allowing the system to perform reliably in harsh environments and extending its operational lifespan.

In summary, this diesel engine fire pump set, with its powerful output, smart control features, and highly reliable backup system, enhances fire safety by ensuring optimal emergency response capability in any unexpected situation.

The conventional electric pump is the main pump, the diesel engine pump is the backup pump, and the voltage stabilizer pump plays a role in the stabilization of the whole system. When the electric pump fails or the mains is cut off, the control cabinet will receive the pressure gauge from the electric contact. When the signal comes, the diesel engine pump will be started within 5 seconds, and the rated working condition will be reached within 20 seconds to ensure the normal operation of the fire extinguishing work.

What is Water Hammer?
A sudden increase in water pressure caused by rapid valve closure or pump shutdown, leading to:

Pipe vibrations and damage.
Pressure surges that can exceed system limits.
Component wear and potential pump failure.
Prevention Methods:
Use slow-closing valves to prevent sudden pressure changes.
Install surge arrestors or expansion tanks to absorb pressure spikes.
Ensure proper pump start/stop sequences to reduce shock loads.

The fire booster pump is designed to increase the flow and pressure rate of the water supply coming into the fire system. This is accomplished by drawing water from a municipality main, tank, or hydrant, and then boosting the pressure rate of the water supply with an electric motor and pump. The adjusting of the pressure rate is accomplished by changing the speed of the electric motor that is powering the pump, which in turn changes the amount of water being pushed through the system.

Multi stage pump refers to a pump with two or more impellers, which can absorb and press water in stages and stages, so as to lift the water to a very high position. The lift can increase or decrease the number of stages of pump impellers according to needs; When the single-stage pump head needs to be equipped with two-stage motors, the multi-stage pump can be equipped with four-stage motors by increasing the number of impellers, which can improve the service life of the pump and reduce the noise of the unit. When the actual required lift of the pump is less than 125 meters, the selection of a single-stage pump or a multi-stage pump can be comprehensively considered according to the area of the pump room, the pump price (the price of a multi-stage pump is generally higher than that of a single-stage pump) and other factors.

Learn how to conduct a fire pump flow test to ensure your system is compliant with NFPA 25, efficient, and ready for emergencies.

The diesel engine fire pump has automatic, manual and fault self-checking functions. It can monitor the working state of the whole process, restore the function of failure start, automatic pre-lubrication and automatic restart of preheating, so that the equipment start-up is safer and more reliable. It has the functions of central control room remote control, remote control and field bus connection. The battery is fully automatic floating charge (constant current, constant voltage, trickle charge) mode to ensure that the battery is in a standby state at any time. Diesel engine fire pump is easy to use, equipped with remote instrument and instrument, which can be connected to the control center as needed, easy to install and use, and easy to maintain.

The diesel engine fire pump is suitable for unattended emergency water supply systems. The product has the characteristics of good technology, high degree of automation, superior performance, complete protection functions, reasonable structure, simple installation, and high cost performance. pipe network pressure.

The fire pump is mainly used to deliver water in the fire system. As an indispensable tool for the fire system, the fire pump has the characteristics of simple structure and stable performance. Due to these advantages of high performance and low energy consumption, the safety and efficiency of the fire pump are far ahead of the pipeline tools of the same purpose.

High-efficiency vertical in-line fire pumps offer stable water pressure, fast start-up, and high durability. They are compact and easy to install, making them suitable for high-rise buildings, factories, and large public facilities, ensuring reliable and safe fire emergency water supply.

The high-flow diesel fire pump unit is a high-performance water supply equipment designed specifically for large-scale fire protection projects. It features strong power, high flow output, independent operation capability, and multiple intelligent protections. It is suitable for factories, warehouses, chemical plant areas, and environments without power supply, providing a continuous and stable fire water supply guarantee for sprinkler and fire hydrant systems.

1.Flow：30-9000 GPM
2.Head： 3-20 Bar 40-300 psi
3.Power：Diesel & Electric Pump:1.5-710kw Jockey Pump:0.55-160kw
4.Speed：740-2900 r/min
The EDJ Diesel Engine Fire Pump System is a powerful and reliable firefighting equipment designed for fire suppression and emergency rescue operations. It boasts high-performance capabilities in water extraction and pressure delivery, enabling rapid supply of large volumes of water. The system operates independently, ensuring its reliability even in challenging situations.

This high-efficiency dual-motor fire pump system is designed to meet the fire protection needs of modern buildings and industrial facilities. It integrates a main pump and a jockey pump to ensure rapid water supply during emergencies. Equipped with an intelligent control panel, the system supports automatic start/stop, remote monitoring, and fault alarms, significantly enhancing ease of operation and operational reliability. With its compact structure and small footprint, it is ideal for high-rise buildings, logistics parks, chemical plants, and more—making it a key component of intelligent fire protection systems.

Diesel engine fire pumps are made of domestic or imported high-quality products. They have the characteristics of good starting characteristics, strong overload capacity, compact structure, convenient maintenance, simple use, and high degree of automation. They are advanced and reliable fire-fighting equipment.