Assembling the EJ Fire Pump Set

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.

Fire Pump Packages
Fire pump package comprises a combination of electric motor driven pump, diesel engine driven and electric motor driven jockey pumps that supply for fire suppression systems.
Fire pump package is required to comply with Local Civil Defense Authority regulations and International Codes of Practice e.g. National Fire Protection Association (NFPA).

Types of pumps used for fire service include: end suction, horizontal split case, vertical split case, vertical inline and vertical turbines.

The pump will start to work when the pressure in the fire extinguishing system pipeline of EDJ small Fire Fighting water supply equipment drops suddenly. The first triggered pump is the jockey pump(pressure stabili-zation pump). The pressure stabilization pipeline of the jockey pump is allowed to start frequently within a certain range. In general, the pressure of the jockey pump is 1-1.5 bar higher than that of the main pump.

The ultimate in tailor made fire protection pump packages are the SPP Pumps pump house packages, housing pumps, control systems and pipework. After simply connecting the water and power supplies on site, the unit is immediately operational.

The lifespan of a fire pump depends on factors such as usage, maintenance, and environmental conditions. Regular inspections and proper maintenance can extend the lifespan of a fire pump, and replacement may be necessary if it no longer meets safety standards.

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 EDJ fire pump set is composed of a fire pump, a dual-shaft extension motor and a diesel engine. One end of the output shaft of the dual-shaft extension motor is connected to the input shaft of the fire pump, and the other end of the output shaft of the dual-shaft extension motor is connected to the input shaft of the fire pump. One end of a clutch is connected, and the other end of the clutch is connected with the output shaft of the diesel engine. The fire water pump, the double-shaft extension motor, the clutch and the diesel engine are all fixed on the base. The double-shaft extension motor, the clutch and the diesel engine are respectively electrically connected with a control circuit through the action driving circuit. With dual-power fire pump, there is no need to configure a second fire pump, reducing floor space and manufacturing costs.

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.

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

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.

The EDJ series fire diesel electric fire pump unit (fire dual power pump unit) is based on the traditional fire protection system of GEM, which combines electric fire pump, booster regulator pump, diesel fire pump, regulator tank and supporting valves, Piping is combined on the same skid-mounted common base. The pump set can provide safety guarantee for fire emergency, and the diesel engine has the function of speed regulation, which makes the use and adjustment range of the unit equipment more extensive.

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.

The motor fire pump unit is powered by an electric motor to drive the fire pump and output pressure water for fire fighting. The pump unit is mainly composed of a motor, a water pump, a transmission device, a common base and an instrument table. The starter cabinet is installed near the pump unit for starting the motor.
The electric fire pump set has the advantages of quick start, reliable water diversion, stable operation, high degree of automation, wide range of pressure and flow, etc. It is an advanced and reliable fixed fire-fighting equipment.

The product is EJ fire pump set. The EJ fire pump set has one electric pump and one jockey pump. The electric pump in the picture is ISW pump. ISW series horizontal single-stage single-suction centrifugal pump is a new generation of energy saving, environment friendly horizontal centrifugal pump researched and developed by our company, which absorbs advanced technology of similar products abroad and adopts domestic
general performance parameters of centrifugal pumps. In addition, according to different operation temperatures and mediums, we developed the hot-water pump (ISWR), corrosion-resistant chemical pump (ISWH) and oil pump (ISWB).

The jockey pump of the jockey fire water supply system must be kept running at ordinary times to maintain the pressure of the pipe network. When a fire occurs, it should still be able to run for a period of time until the main fire pump is started. It must be set according to the main and standby pumps. pressure pump. Due to the need for the stabilizing pump to keep running, energy is wasted, and the stabilizing pump is in working condition for a long time.

The motor of this fire pump set is directly connected to the fire pump, which simplifies the intermediate transmission structure and enhances the stability of operation. The equipment occupies a small area, saves costs, and is a cost-effective fire pump set.

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.

Firefighting pumps are often integrated with other firefighting equipment and systems, such as fire hoses, fire hydrants, sprinkler systems, and fire suppression systems. This integration ensures a coordinated and comprehensive approach to fire protection and emergency response, enabling firefighters to work together seamlessly to combat fires and protect communities.

The EJ model is basically a combination of an electric drive and a jockey pump. They consist primarily of an end suction pump driven by an electric motor, with no backup pump. It is also combined with a jockey pump for maintenance to form a complete skid.

The complete EJ-style skid is assembled with all discharge line accessories and connected to the skid-mounted control panel.

This is a set of EDJ fire pump set, which consists of electric pump + diesel pump + jockey pump. The three pumps are automatically started and stopped. When the joceky pump detects that the electric pump cannot operate normally, the diesel engine pump will start automatically. Can also be used, the fire pump set is widely used in various emergency firefighting occasions.

Electric fire pumps are suitable for pressurized water delivery in fire pipelines. It is used to pressurize water or other liquids whose physical and chemical properties are similar to water. The temperature of the medium used does not exceed 80°C. It is suitable for industrial and urban water supply and drainage, pressurized water supply for high-rise buildings, garden sprinkler irrigation, long-distance water supply, heating, bathroom and other cold and warm water cycle pressurization and equipment matching, etc.

– Diverse Area Coverage: Ensuring comprehensive coverage for offices, retail spaces, dining areas, and other facilities.
– High Occupancy Management: Implementing systems that handle high occupancy and prioritize occupant safety.
– Integration with Building Management Systems: Coordinating with HVAC, security, and other building systems for comprehensive safety.
– Compliance with Commercial Building Codes: Adhering to fire safety regulations specific to multi-purpose commercial buildings.

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. Make sure all valves are open and the system is in good working order.

2. Check the fuel filter for any debris, and replace as needed.

3. Adjust the governor control to reduce the RPM of the engine, and limit fuel consumption.

4. Regularly inspect, clean and replace the air filter to ensure maximum efficiency.

5. Maintain the fuel injection system to minimize fuel wastage.

6. Use synthetic oil instead of petroleum-based engine oil.

7. Reduce the demand on the fire pump by using water pressure regulators or other available techniques.

8. Use the most efficient fuel type for the engine.

9. Use the most efficient nozzle size for the fire pump.

10. Use a variable frequency drive to reduce the engine speed and conserve energy.

It’s a customized EJ fire pump set consisting of electric pump, jockey pump along with control panel, and accessories. It is equipped with priming tank for doing negative suction.

The water source for fire pumps should be reliable, with adequate capacity to meet the demands of firefighting. It can include dedicated water tanks, connection to a municipal water supply, or other approved water sources. Regular checks ensure the availability and quality of the water source.

In large industrial complexes, fire pumps are vital in supporting firefighting efforts by providing a reliable water supply to extensive fire protection systems, including sprinklers, hydrants, and hose reels. These facilities often have complex layouts and multiple hazards, requiring robust fire pumps capable of delivering high water flow rates and pressure over long distances. Fire pumps in these settings are typically part of a comprehensive fire protection strategy that includes redundant pumps, emergency power supplies, and advanced control systems to ensure continuous operation even if one component fails. By delivering a consistent and adequate water supply, fire pumps help ensure that firefighting efforts are effective, minimizing damage and protecting both personnel and assets.

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.

150gpm 150 psi EJ fire pump set ready dispatch

The fire pump is mainly used to pressurize and send water to the fire system pipeline. It can also be applied to industrial and urban water supply and drainage, pressurized water delivery for high-rise buildings, long-distance water delivery, heating, bathroom, boiler cooling and heating cycle pressurized air-conditioning refrigeration system water delivery and equipment matching, etc.