Diesel Multistage Pump

Diesel engine fire pump sets are mainly suitable for fire water supply and foam fire extinguishing systems in petrochemical, natural gas, power generation, cotton and linen textiles, warehouses, airports, docks, high-rise buildings and other industries. It can also be used in occasions such as water ships, offshore oil tankers and fire fighting ships. The unit adopts imported diesel engine and fire pump. It has the characteristics of quick start, reliable water diversion, reasonable power reserve, stable operation, high degree of “three modernizations”, wide range of pressure and flow, etc. It is an advanced and reliable fire-fighting equipment.

EEDJ Fire Pump Package ,The equipment is designed to have 2 electric pumps. one duty and one standby and one diesel pump stand by function. The main pump runs normally, and the standby pump starts automatically after the main pump fault . The Jockey pump will start and stop based on the pipe pressure, Control panel site start.

Explain the unique advantages of UL-listed fire pumps, including verified performance, enhanced safety through rigorous testing, and compliance with international standards, which is essential for securing building permits and insurance. Outline how UL-listed pumps often offer greater reliability during emergencies and ensure easier maintenance and support, making them ideal for facilities requiring dependable fire protection.

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.

– Specialized Fire Suppression Systems: Implementing fire suppression systems designed for hazardous waste materials.
– Explosion-Proof Equipment: Using explosion-proof equipment to prevent ignition of flammable or explosive materials.
– Regular Maintenance and Inspections: Conducting regular maintenance and inspections to ensure system reliability.
– Compliance with Environmental Regulations: Adhering to stringent environmental and safety regulations specific to hazardous waste handling.

DJ fire pump group is mainly composed of diesel engine and regulator pump, can be selected in the state of no power supply.

1. Better is a professional fire pump manufacturer with 18 years of industry experience

2. Professional sales team and R&D team, strong technology, self-produced control system

3. The motor is self-produced, which can produce 50/60Hz

Diesel engine fire pumps are usually used as a backup facility, and will only start automatically when the electric water pump fails or the power is cut off when the fire signal comes. When equipped with an ultra-low pressure pump starting device, the matching electric pump control cabinet should also be equipped with an ultra-low pressure pump starting device, and the lower limit of pump starting should have a certain pressure difference. Of course, it is also possible to design a control system that is more suitable for customer needs according to customer requirements.

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 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.

1. Verify that the fire pump is correctly sized for the building’s fire protection system.

2. Ensure that the fire pump is installed in a location that is accessible for maintenance and operation.

3. Ensure that the fire pump is properly electrically grounded and has a dedicated power source.

4. Verify that the fire pump is connected to the water supply system in accordance with local codes and regulations.

5. Ensure that the fire pump is installed in accordance with the manufacturer’s instructions.

6. Install a controller to automatically start and stop the fire pump as needed.

7. Ensure that the fire pump is tested to meet local codes and regulations.

8. Verify that the fire pump is properly maintained and inspected on a regular basis.

The EDJ （Diesel Pump: XA pump, Electric Pump: XA pump ）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.

The function of diesel fire pump is very powerful, we can set the control time during use, for example: preheating in advance, preparatory lubrication or timing start. The use of high-tech has made some complicated and time-consuming things easier in the past. The preheating setting greatly reduces the preparation time for rescue, allowing firefighters to rescue the first time. In the face of disasters, time is money and time. is life.

This fire pump set is composed of diesel pump and stabilized pump. It adopts IS pump, which has advantages in price and is not affected by mains electricity. It is suitable for warehouses, docks, airports, petrochemicals, power plants, liquefied gas, textiles, ships , oil tankers and other fire-fighting occasions.

EEJ Fire Pump Set is 2 electric pumps and a jockey pump. It can meet 120~1500GPM . The head is less than 150m.

Before starting the electric motor fire pump set, the inspection work is indispensable. Check the condition of the power supply and motor, whether the water volume of the reservoir is sufficient, and whether the water inlet and outlet are normal. The inspection is normal and then starts; after the fire pump is started, attention should be paid to the vibration and temperature rise. It is necessary to set the maintenance time period to ensure the stable performance of the fire pump. According to the needs of system operation control and maintenance management, the electrical control cabinet of the fire pump mainly has the functions of starting and stopping the pump, switching between the main and standby pumps, manual automatic switching, dual power switching, patrol inspection, Protection, feedback mechanical emergency start and other functions.

·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

A typical firefighting pump system consists of the pump itself, intake and discharge hoses, nozzles, strainers or filters to prevent debris from entering the pump, and sometimes additional accessories like foam injection systems for enhanced fire suppression capabilities.

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.

·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

In high-rise buildings, fire pumps and jockey pumps are critical components of the fire protection system, ensuring that water is delivered to the upper floors with sufficient pressure. Due to the height of these buildings, gravity significantly reduces water pressure as it travels upwards, making it essential for fire pumps to boost pressure to maintain effective firefighting capabilities. Jockey pumps maintain system pressure in between fire pump activations, compensating for minor leaks and ensuring the system is always primed. The design of these pumps in high-rise buildings often includes considerations for redundancy, with multiple pumps and backup power supplies to ensure continuous operation even during power outages or pump failures. This redundancy is vital in high-rise buildings, where a delay or failure in water delivery could have catastrophic consequences.

EDJ fire pump set is composed of diesel engine pump + electric pump + vertical jockey pump. Diesel fire pumps are typically used where there are potential reliability issues with the local power grid, with available flows of 50-5000GPM.

The electric fire pump can supply fire water supply in general occasions. It has complete performance and a wide range of models. It can use single-stage single-suction pumps, multi-stage single-suction pumps, self-priming pumps, long-axis pumps and other pumps, and can also be combined in parallel. Wide range of flow and pressure. Electric fire pumps are widely used in fire water supply in warehouses, docks, airports, petrochemical, power plants and other industrial and mining enterprises. Larger flow and head. The temperature of the conveying medium can reach 80°C.

The vertical multistage centrifugal pump set cooperates with the main pump to take water from the pool and transport it to the system to maintain the system pressure.
The pressure stabilizer pump of the “stabilized high pressure” fire water supply system must be kept in operation at ordinary times to maintain the pressure of the pipe network. In the event of a fire, it should still be able to run for a period of time until the main fire pump is started. Set up the booster pump. Because the constant pressure pump needs to keep running all the time, which wastes energy, and the constant pressure pump is in working state for a long time, it has high requirements on its service life, so this method is no longer used in the project.

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.

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. 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.

Diesel engine fire pumps are fire-fighting equipment produced by our company for many years to meet the actual needs of users and the requirements of modern fire-fighting technology. Manufactured with mature control technology and reliable components. The system has the advantages of high technical content, high degree of automation, and perfect performance, all of which meet the relevant requirements of national 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 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.

Flow-500gpm
Head-8bar
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.

The pump and the motor are coaxial, which simplifies the connection of the pipeline. The pump inlet and outlet are on the same horizontal axis, and the diameter and specifications are the same. The pump is provided with a mounting base, which is easy to install and increases the stability of the pump operation. The pump seal adopts mechanical seal, which has the characteristics of reliable sealing and no leakage.