Leakage failure of fire pump

EDJ-ISW fire-fighting pump set is a fire-fighting water supply equipment with dual drive of electric power and diesel engine designed and manufactured by Better Technology Group Co., Ltd. according to the standard of <>, and has obtained 3CF certification. There are many models of Beide fire pump sets, which can be customized according to needs.

·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

Diesel engine fire pumps are relatively common in life, and their performance requirements are relatively high. In ordinary use, more attention should be paid to maintenance, so as 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 meets the national standards. As fire equipment, all kinds of equipment must be To ensure performance, avoid affecting use in disaster situations and delaying rescue.

In addition to traditional fire suppression activities, firefighting pumps are crucial in specialized scenarios such as aircraft firefighting, where they provide the high-pressure water or foam needed to extinguish fires on aircraft. Similarly, marine firefighting pumps are essential for combating fires on ships and offshore platforms, requiring pumps specifically designed for maritime environments.

Fire pumps typically draw water from a reliable source such as a dedicated water tank, municipal water supply, or open water source. It’s essential to ensure that the water supply is sufficient and free from contaminants.

The motor of this EJ fire pump set is directly connected to the pump body, which saves costs. It adopts ISW pump, and its performance parameters and technical indicators meet relevant standards. It has the characteristics of high efficiency and reasonable structure. It is suitable for industrial and urban water supply and drainage, high-rise building increase Pressurized water supply, garden sprinkler irrigation, long-distance water supply, heating, bathroom and other hot and cold water circulation pressurization and equipment.

The DJ Fire Pump Set is a combination system consisting of a diesel engine pump and a jockey pump, designed for fire safety in the construction and industrial sectors. This system utilizes the powerful power output of the diesel engine pump, ensuring reliable operation even in the event of a power outage. The jockey pump maintains a constant water pressure, optimizing the performance of the fire suppression system. The DJ Fire Pump Set offers a reliable and efficient solution for prompt response to fire incidents, making it an essential component for protecting property and ensuring occupant safety.

Fire pump set consists of one main pump coupled to electric motor, one stand by pump coupled to diesel engine, jockey pump, pressure vessel, controller for manual or automatic operation of system and standard accessories mounted on base frame.

EDJ fire pump small flow capacity: 50gpm, pressure: 5bar

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.

After receiving the fire/pipe network pressure/power failure/other start signals, the diesel engine fire pump can automatically start and enter full load operation within 5 seconds. The battery can be automatically charged by the main power supply or the diesel charging motor to ensure the smooth start of the equipment; automatic alarm protection for low oil pressure, high water temperature and other faults of the diesel engine, overspeed alarm and shutdown; the diesel engine fire pump is in a hot engine standby state to ensure emergency work. The diesel engine fire pump adopts the direct connection technology between the diesel engine and the water pump. Through the elastic coupling, the failure points are reduced, the start-up time of the unit is greatly shortened, and the reliability and emergency performance of the unit are improved.

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.

Fire pump installations must consider factors such as temperature, humidity, and potential flooding. Pumps should be installed in environments that protect them from extreme conditions to ensure reliable operation.

The outdoor fire pump can be used outdoors. There is a complete set of fire pump equipment. It does not need to build a pump station, saves costs, saves space, and is suitable for any fire protection occasions.

Fire pumps should be tested regularly to ensure their proper functioning. Monthly tests for a short duration and an annual full-load test are common practices. Regular testing helps identify and address any issues promptly.

The diesel engine fire pump set has the characteristics of good starting characteristics, strong overload capacity, compact and reasonable structure, convenient maintenance, simple and reliable use, etc. The unit is equipped with protection functions such as overspeed, low oil pressure, failure to start three times, high water temperature, low oil level, and low battery voltage. At the same time, it can be connected with the customer’s automatic fire alarm device or the centralized control cabinet of the fire protection system produced by our factory to realize the function of remote monitoring.

1. Diesel pump: the flow rate is the same as that of the electric pump. It connects pump sets with highly elastic couplings or universal joints.
2. jockey pump: vertical, small flow, higher lift than electric or diesel pumps.
3. Control panel: Automatically control the water pump with overload and overcurrent protection.
4. Accessories: suction pipe, discharge pipe with flange, battery, gate valve, check valve, flexible expansion joint, pressure switch, pressure gauge, base, etc.

1. Choose a fire pump with good performance and reliable quality.

2. The fire pump should be suitable for the working pressure and flow rate required by the fire fighting system.

3. Pay attention to the safety performance, reliability and stability of the fire pump.

4. Check whether the fire pump meets the requirements of the relevant national standards.

5. Pay attention to the after-sales service of the fire pump manufacturer.

6. Consider the cost performance of the fire pump.

7. Choose a fire pump from a qualified manufacturer.

·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

Flow: 30-9000GPM
Head: 3-20Bar
Speed: 740-2900r/min
Frequency: 50 HZ or 60 HZ

The ED Fire Pump Set combines electric and diesel engine pumps to ensure uninterrupted fire protection and a reliable water supply.
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.

Electric fire pump: It is an important part of the fire water supply system. Divided into ordinary type and foam type. The ordinary type is used for general fire water supply; the foam type is equipped with an adjustable proportion mixer and a cam pump, which can deliver the mixed liquid to various foam launching devices to extinguish various oil fires. The electric fire pump consists of two parts, the motor and the pump. The pump and the motor are coaxial. The pump structure includes pump body, rotor, pump cover, mechanical seal and other components.

This fire pump features an outstanding energy-saving hydraulic design, which not only significantly reduces operational energy consumption but also ensures continuous high-performance water flow during emergencies. Its internal structure is meticulously optimized to minimize fluid resistance while enhancing flow and pressure output, resulting in lower energy usage and improved efficiency. Whether used in industrial settings or commercial buildings, this fire pump delivers stable and powerful hydraulic support while reducing operational costs, providing an uncompromising safeguard for fire safety.

When installing fire pumps and jockey pumps, environmental considerations are increasingly important to minimize ecological impact and comply with regulatory standards. This includes choosing energy-efficient models that reduce power consumption and greenhouse gas emissions, which can be particularly significant for systems that operate continuously or frequently. Additionally, it is important to consider the water source for fire pumps, ensuring that they do not deplete local water supplies or adversely affect nearby ecosystems. Using sustainable materials and manufacturing processes for pump components can also reduce environmental footprints. In some cases, fire pump systems can be integrated with rainwater harvesting or greywater recycling systems to utilize alternative water sources, further minimizing environmental impact.

No, a fire pump should never run without water. Running a fire pump dry can cause significant damage to the pump’s internal components, leading to overheating and failure. Ensuring the water supply is reliable and monitored is essential for proper fire pump operation.

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℃.

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.

·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

EDJ series fire pump sets are mainly installed in fire trucks, fire extinguishing systems or other fire fighting facilities, and are special pumps used to transport liquids such as water or foam solution.
The fire pump set includes a main pump connected to the electric motor, a backup pump connected to the diesel engine, jockey pump, pressure vessel, controller for manual or automatic operation of the system and standard accessories mounted on the base.

Benefits of Using VFDs:
Energy Savings: Adjusts pump speed based on demand, reducing unnecessary energy consumption.
Reduced Wear and Tear: Minimizes pressure fluctuations, extending pump lifespan.
Stable System Pressure: Helps maintain consistent pressure in fire suppression systems.
Implementation Tips:
Ensure NFPA 20 Compliance: VFDs for fire pumps must be UL-listed and designed to function under emergency conditions.
Use Bypass Mode for Emergencies: A bypass circuit ensures the pump runs at full speed if the VFD fails.
Monitor Performance: Install sensors to track speed, pressure, and energy usage.

Learn how to troubleshoot common fire pump issues, including low pressure, cavitation, and motor failures.