250gpm 8bar DJ fire pump set working process

The diesel engine fire pump unit is directly driven by the diesel engine fire pump, and it is a mechatronic equipment that can start and complete the water supply in a short time. The diesel engine pump set is driven by a diesel engine without external power supply. Diesel pumps are suitable for fire water supply occasions such as agricultural irrigation, emergency rescue, smelting, hangars, petrochemical oil depots, power plants, liquefied gas stations, and textiles. Especially in the case of no electricity and dissatisfaction with the grid, choosing a diesel engine-driven water pump is the safest choice.

Flow: 14-2700 GPM
Head: 12-80 meter
The EJ Dual Power Fire Pump System is an innovative and reliable fire protection solution. Combining an electric pump for robust water pressure and flow with a top-quality jockey pump for stable pressure maintenance, this system ensures efficient and timely water supply during fires. With advanced automation, remote monitoring, and energy-saving features, the EJ Dual Power Fire Pump System is a trusted choice for commercial, industrial, and residential applications.

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

·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
By choosing the DJ (Diesel engine pump + Jockey pump) Fire Pump Set, you opt for a reliable, efficient, and secure solution to protect your property and ensure the safety of occupants. Whether for commercial buildings, industrial facilities, or residential areas, it is an indispensable fire safety equipment that offers robust support and protection to your fire protection system.

The diesel engine fire pump has the characteristics of good starting performance, serious load operation, compact structure, time-saving and labor-saving maintenance, simple application, and high level of automatic control technology. It is a security monitoring device with reliable performance.

The conventional electric pump is the main pump, the diesel engine pump is the backup pump, and the jockey 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.

Application Scope
Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service.

Using Instruction
Altitude: ≤ 1000m;
Ambient temperature: +5 °C ~ +40 °C;
Relative humidity: <= 90%.

Single stage centrifugal pump includes pump body, pump cover, motor with output shaft, pump shaft, bearing seat, impeller, mechanical seal and mechanical seal gland installed in the pump body, which are connected with the motor through extended elastic coupling. The rotation direction of the pump, viewed from the driving end, is clockwise. Wanfulong is characterized in that it also includes a clip on coupling arranged between the motor output shaft and the pump shaft, and a guide bearing installed on the bearing seat to assist in supporting the pump shaft; The wafer type coupling is rigidly connected with the motor output shaft and the pump shaft respectively, and a space distance is left between the motor output shaft and the pump shaft to facilitate the assembly and disassembly of the mechanical seal and the mechanical seal gland. When repairing or replacing the mechanical seal, it is not necessary to disassemble the motor and pump cover.

The intelligent pressure stabilizing tank is a high-performance firefighting water supply device featuring precise pressure control, energy-efficient operation, and automated management capabilities. Utilizing an advanced sensor system and pressure-resistant tank design, it ensures consistent water pressure within fire suppression systems, enabling rapid response and safe operation. Widely deployed in high-rise buildings, industrial parks, and commercial complexes, it serves as an ideal solution for enhancing the reliability and efficiency of fire protection systems.

The fire jockey pump and air tank combination system ensures stable fire water pressure through intelligent control and air pressure stabilization. Featuring energy efficiency, low noise, automatic start-stop, and remote monitoring, it offers compact design and easy installation—ideal for high-rise buildings, industrial facilities, and logistics centers as a reliable modern fire pressure maintenance solution.

UL fire pump, certificate number EX28132,
meet UL 448 standard for pumps for Fire-Protection Service
Flow 200-2000 GPM
Rated pressure: 103-224 PSI
Speed： 2950-3550 RPM (50hz or 60hz)
Maximum working pressure: 280 PSI

The dual-power fire pump is mainly used for various fire hydrants and spray fire main pumps. It is also suitable for various fire booster and pressure jockey pumps. It is also suitable for various villas, residential areas and other fire systems, industrial Compatible with civil building fire protection systems, it is also suitable for various oil depots, oil product loading and unloading docks, logistics parks and other places with high fire protection requirements.

70m3/h@60m Fire pump set test
We manufacture in strict accordance with customer requirements. All products will be tested before leaving the factory to ensure that there are no problems. The design meets the national standard of general packaging, meets customer needs, and standard handling and transportation.

Diesel engine fire pump, as a fixed fire extinguishing equipment, has been widely used in fire diversion, especially in the case of no power supply or abnormal power supply and other emergencies, other diesel engines can also be equipped as power engines according to the needs of users.​​

The basis for the selection of fire pumps should be based on the process flow, water supply and drainage requirements, and be considered from five aspects, namely, liquid delivery volume, device lift, liquid properties, pipeline layout, and operating conditions. Fire pumps are mainly divided into vertical and horizontal types. The flow rate of the conveying liquid is one of the important performance data for pump selection. It is directly related to the production capacity of the entire device. The working conditions of the fire pump: flow rate: 2～1400m3/h, Head: 5～130m, maximum working pressure of the system: ≤1.6MPa, working temperature: -15℃～+80℃.

The ED Dual-Power Fire Pump System combines electric and diesel engine pumps to ensure uninterrupted fire protection and a reliable water supply. In the event of power outages or electrical failures, the diesel engine pump seamlessly takes over, guaranteeing continuous operation of the fire protection system. This dual-power configuration offers both reliability and flexibility, providing comprehensive coverage for fire safety needs. With smart controls and automatic switching mechanisms, the transition between electric and diesel engine pumps is seamless, minimizing system downtime. Equipped with advanced safety features, including monitoring and alarm systems, real-time status updates allow for prompt action in case of any irregularities.

Discover the future of smart fire protection with our dual-control cabinet diesel pump system. Designed for reliability, automation, and seamless integration in critical environments. Ideal for industrial and commercial fire safety.

In modern buildings and industrial facilities, efficient space utilization is crucial. Our Vertical Inline Fire Pump is specially designed to meet this need. With a vertical structure and in-line suction and discharge ports, it is easy to install directly into the pipeline without requiring a separate base, making it ideal for locations where floor space is limited or restricted.

This pump not only features a compact design but also offers high efficiency, strong head, and large flow rate. It can start quickly during emergencies and provide a stable and continuous water supply to the fire protection system. The motor is directly connected to the pump body, ensuring low vibration, smooth operation, and easy maintenance. It is an ideal solution for buildings, factories, warehouses, and other fire safety applications.

Whether for new construction or system upgrades, the Vertical Inline Fire Pump delivers a more reliable, efficient, and intelligent solution for your fire protection system.

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 Fire Pump Set includes diesel engine pumps, electric pumps and jockey pumps.
In various fields, our products find applications in large hotels, hospitals, schools, office buildings, supermarkets, commercial residences, subway stations, train stations, airports, various transportation tunnels, petrochemical plants, thermal power plants,oil storage tanks, large warehouses, industrial and mining enterprises, seawater injection, etc.

The electric motor fire pump is an important water supply equipment in the fire protection system. The electric motor fire pump has a wide range of head, flow and power, and can be used in many environments. Providing sufficient water supply is the key to ensure emergency use.

Diesel engine fire pumps are relatively common in life, and their performance requirements are relatively high. In normal use, more attention must be paid to maintenance to prolong the service life of the pump. Because diesel fire pumps are not omnipotent, there will be some problems in daily use, so when choosing equipment, we must pay attention to whether the quality of the equipment has reached the national standard. As fire equipment, all kinds of equipment must be Ensure performance, avoid affecting use in disasters and delay rescue.

1. Ability to provide a steady and reliable flow of water: Fire pumps are designed to provide a steady and reliable flow of water to the fire suppression system. This ensures that the fire is extinguished quickly and without any damage to the property.

2. High-Pressure Output: Fire pumps can provide a high-pressure output to ensure that the water is able to reach further distances and at higher pressures than would be achievable by a standard water system. This is important in controlling and extinguishing fires, as it allows the water to reach all areas of the fire.

3. Emergency Operation: Fire pumps are designed to be able to operate in the event of a power outage. This ensures that the fire suppression system can still be operational in the event of a power failure. This is especially important in commercial buildings and other areas where power outages can occur.

4. Automatic Activation: Fire pumps are designed to automatically activate in the event of a fire. This ensures that the fire suppression system can be activated quickly and without any manual intervention. This is especially important in the event of a large fire, as it ensures that the system is already in operation before the fire department arrives.

5. Low Maintenance: Fire pumps are designed to be low maintenance, requiring only regular inspections and maintenance to ensure that they are working correctly. This ensures that the fire suppression system is always ready for use and that it can be relied upon in the event of a fire.

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. With its lightweight and portable design, coupled with versatile functionality, the EDJ Diesel Engine Fire Pump System is suitable for various scenarios. Whether you are part of a fire department or an industrial enterprise, the EDJ Diesel Engine Fire Pump System is your indispensable rescue partner.

Flow:5-400L/s
Head:3-20Bar
Material:HT200, SS304, Bronze
Caliber:65-350mm
Pressure:0.3~1.5MPa
Speed:740-2900r/min

Fire Hydrant and Fire Sprinkler System 38lps, 60m
Fire Fighting Pump Set
Fire Fighting Pump with Electric Motor, diesel engine and jockey pump , 200L pressure vessel

The high-lift, high-flow diesel fire pump is a high-performance firefighting device designed specifically for large buildings, industrial parks, docks, and power stations. It features powerful power, high lift, high flow, intelligent control, and exceptional durability. It provides a stable water supply even during power outages, ensuring continuous and efficient operation of the firefighting system and providing reliable safety in various emergency scenarios.

Mobile emergency fire pumps feature a lightweight design and high flow output, making them highly maneuverable and capable of rapid deployment in cities, rural areas, construction sites, warehouses, docks, and other locations. Suitable for firefighting, flood drainage, and emergency water supply, they are versatile and reliable, ensuring the safety of life and property.

Diesel engine fire pump, as a fixed fire extinguishing equipment, has been widely used in fire diversion, especially in the case of no power supply or abnormal power supply and other emergencies, other diesel engines can also be equipped as power engines according to the needs of users.

Diesel engine fire pump is a kind of fire-fighting equipment that we often see and often use in our life. The diesel engine fire pump has the characteristics of good starting performance, strong overload capacity, compact internal structure, convenient maintenance, simple operation and high degree of automation. It is a very reliable fire fighting equipment.

Fire pump controllers are devices that monitor and control the operation of fire pumps. They ensure that the pump starts automatically during an emergency, regulate pressure, and provide safety features. Controllers play a crucial role in the overall functionality of the fire pump system.