What is an EDJ Fire Pump Set?

Provide a comprehensive guide on fire pump regulations, such as NFPA 20 (Standard for the Installation of Stationary Pumps for Fire Protection), local building codes, and UL/FM certification requirements. Discuss how these regulations impact the design, installation, and maintenance of fire pumps, why they’re essential for safety, and how to ensure your fire protection system meets all necessary legal and insurance requirements.

In the fire fighting pipeline pump, according to the different installation methods can be divided into vertical fire pumps and horizontal fire pumps, many people have questions about these two common pumps, what is the difference between the two? Shanghai Xizhiquan will explain the difference between horizontal and vertical pumps.

Obviously, different installation methods take up different space. Vertical pipeline pumps are installed vertically, covering a relatively small area, and vertical fire pumps do not require a foundation, while horizontal fire pumps need to be equipped with a base.

According to the different structures of the two pumps, it can be concluded that there is also a certain difference in the ease of maintenance of the two types of fire fighting pipeline pumps. The impeller of the vertical fire pump needs to be dismantled from top to bottom, which makes maintenance more difficult; the horizontal fire pump only needs to have the inlet pipe removed so that the impeller can be overhauled, which is relatively simple.

Due to the different inlet and outlet pipe directions, the pipeline connection between vertical and horizontal is also different. As the vertical pump is a bottom-up structure, while the horizontal fire pump is longitudinally arranged on the base, so the motor of the vertical pump and the pump body are connected in the form of sub-mouth connection, while the horizontal pump needs to use couplings to connect with the motor, and the horizontal pipeline pump needs to be corrected regularly.

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·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

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.

The video displays EJ fire pump set is being tested. The system set is equipped with a priming tank and can do 2 to 3 meters negative suction.

EDJ multi-stage fire pump consists of electric pump, diesel engine pump and jockey pump. The electric pump is the working pump, and the diesel engine is the backup. The more impellers used in the multi-stage electric pump, the higher the lift. This product can run in the event of a power failure and is suitable for any emergency firefighting occasions, mainly used for the top of high-rise buildings or towers water supply, etc.

The complete fire pump system consists of pumps, drivers, controllers and accessories installed on a universal base, and is suitable for fire water supply and emergency water supply in warehouses, storage yards, airports, petrochemicals, liquefied gas in power plants, textiles, ships, oil tankers, etc. This pump set is ideal for firefighting or voltage stabilization in houses or small buildings. We customize it to NFPA 20 and UL standards.

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.

Yes, modern fire pumps typically come with safety shutoff features to prevent damage from overheating, low oil pressure (for diesel pumps), or running dry. These features are designed to protect the equipment and prolong its life, though in critical applications, it’s vital that shutoff mechanisms do not compromise firefighting capabilities.

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.

EDJ fire pump set is composed of electric pump + diesel pump + jockey pump. The pump set has reasonable layout, firm installation, reliable connection, compact and neat structure, and convenient maintenance. And can run in the case of power failure, suitable for any emergency fire occasions.

As a fixed fire-fighting equipment, the diesel engine fire-fighting pump set has been widely used in fire-fighting diversion, especially for fire-fighting water supply in unexpected situations such as no power supply or abnormal power supply (mains power). The water pumps in the unit are horizontal single-stage and multi-stage fire pumps produced by our company, which are mainly composed of diesel engines, fire pumps, coupling devices, fuel tanks, radiators, battery packs, intelligent automatic control panels, etc.

The diesel engine equipped with the equipment is made of domestic or imported products. It has the characteristics of good starting characteristics, strong overload capacity, compact structure, convenient maintenance, simple use, and high degree of automation. It is an advanced and reliable fire-fighting equipment.

Better technology specializes in the production of fire pump, novel product design, excellent performance, fast water flow, high head, complete varieties; The company independent research and development of fire pump production more than 15 years, and won a number of certification certificates.

DJ fire pump set 30gpm at site
diesel engine fire pump 30gpm, 3bar with 10gpm, 4bar with controller and accessories.

At higher altitudes, the atmospheric pressure is lower, which can reduce the performance of fire pumps. To compensate for this, fire pumps may need to be oversized or specially configured to deliver the necessary pressure and flow in high-altitude environments. Proper planning and design are essential to ensure that the system functions effectively under these conditions.

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.

1.Flow：30-9000 GPM
2.Head： 3-20 Bar
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.

EDJ fire pump set is composed of electric pump + diesel engine pump + jockey pump. The fire pump set has the characteristics of high efficiency and energy saving, reliable quality, strong overload capacity, compact structure, convenient maintenance and high degree of automation. Suitable for any emergency firefighting occasion.

Safety measures include regular training for personnel, ensuring proper ventilation in pump rooms, and following manufacturer guidelines for maintenance and operation.

The EDJ 2000kw 10kv 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.

small flow fire pump set ready to dispatch
100gpm 5bar ED fire pump set

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 EDJ model is basically a combination of Electric, Deisel and Jockey pumps. They mainly consist of an electric motor driven end suction pump and a backup pump of a diesel engine driven end suction pump. It is also combined with a jockey pump for maintenance to form a complete skid.
The complete EDJ style skid is assembled with all discharge line fittings and connected to the skid mounted control panel.

·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

Fire pump package comprises a combination of electric motor driven pump, diesel engine driven pump and electric motor driven jockey pumps that supply for fire suppression systems.

Common Causes of Fire Pump Motor Failures:

Electrical Issues: Faulty wiring or power supply problems can lead to motor failure.
Overheating: Insufficient cooling or blocked ventilation can cause overheating.
Mechanical Failure: Worn bearings or misalignment can result in motor damage.
Lack of Maintenance: Neglecting routine maintenance can lead to premature failures.
Corrosion: Exposure to moisture and chemicals can damage components.

Zhejiang Better Technology Group Co., Ltd. mainly produces various industrial pumps, electric motor fire pumps, diesel engine fire pumps, fire-fighting special water supply equipment, fire-fighting dual-power water supply equipment, general-purpose fire-fighting gas top pressure water supply equipment, fire pump control cabinets, fire-fighting frequency conversion automatic Inspection cabinets, fire protection dual power supply cabinets, submersible sewage pumps, pipeline pumps, chemical pumps, oil pumps, slurry pumps, vacuum pumps and complete sets of vacuum equipment, non-negative pressure water supply equipment, frequency conversion constant pressure water supply equipment and water tanks of various materials, fire protection, Domestic pump room control cabinets, etc., products are widely used in agriculture, machinery, chemical industry, papermaking, medicine, food, sugar, electronics, metallurgy, ceramics, water diversion, printing and dyeing, building materials and other fields.

50gpm8bar ED fire pump set

two sets 50gpm 8BAR EDJ fire pump after finish product

The general fire water supply environment is equipped with one electric and one diesel fire pump as the reserve water pump to ensure sufficient emergency water consumption. The main components of the electric motor fire pump set are the motor and the pump body. The subdivision of the pump body is the pump casing, impeller, pump shaft, bearing, coupling, sealing form, water pipe, etc. The specific fire pump model is determined according to the environment and performance requirements. At the same time According to the material quotation required by the customer, accurate selection is conducive to on-site use and reduces failure problems.

1. When the pipeline fire pump noise occurs, the most likely fault is the imbalance of the fire pump rotor. Since the water output of the fire pump mainly depends on the high-speed rotation of the rotor, when the rotor is unbalanced for some reason, it will cause the fire pump to deviate from the original rotation track during the rotation process, resulting in the fire pump appearing in the pipeline. When judging the failure of the rotor, it is mainly to replace the rotor of the pump or make a balance hole on the rotor blade of the pump to find out the balance difference.

2. The production noise of the fire pump pipeline has a certain effect. For example, forcing a small flow of a pipe “fire pump” to increase power to increase the original flow will create vibrations in the fire pump. Therefore, whether you use a pipeline fire pump or other types of water pumps, you should follow the water pump use standards to prevent the water pump from making noise, which will affect the service life of the water pump. The solution is to use the pump according to the instructions. If the efficiency of use is affected, it is recommended to replace the appropriate pipeline “fire pump” for use.

3. The installation did not meet the standards, resulting in abnormal noise from the pipeline fire pump. Fire pumps and fire hydrant pumps vibrate at a high frequency during operation, so they must be fixed during installation. If the bolt between the pump body and the base or between the base and the base is loose when installing the pipe fire pump, the transmission shaft between the pump body and the motor of the pipe pump will be bent. It lowered the concentricity and caused an imbalance in the fire pump rotor. This is one of the noise phenomena of fire pumps. In order to improve this phenomenon, the pump shaft of the fire pump needs to be balanced and then reinstalled. Finally, the base of the pump was reinforced.

4. Blockage of the impeller passage can also cause fire pump noise. When the internal flow channel of the fire pump is blocked by foreign matter, it will cause uneven resistance of the fire pump impeller and vibrate the fire pump. Therefore, it is necessary to regularly disassemble and maintain the fire pump to prevent foreign matter from blocking the pipeline.

5. The bearing of the fire pump is damaged. Bearing damage generally does not occur on the main body of an in-line fire pump. If there is a problem with the quality of the pump, or because some hard objects enter the pump body of the tube pump, the bearing is damaged, and the rotor is unstable at first. Causes noise from pipeline fire pumps.

6. Finally, cavitation, cavitation occurs in any type of pump, but some are obviously not noticeable. If cavitation occurs, consider raising the fire pump or increasing the pressure in the piping. If the cavitation phenomenon cannot be changed, the fire pump model needs to be redesigned and replaced.