Multistage electric fire pumps have a wide range of applications

Fire pumps are part of the water supply to a fire sprinkler system and are powered by electricity or diesel. The pump inlet is either connected to a public groundwater supply or to a static water source (e.g. tank, reservoir, lake). This pump provides higher pressure water flow to sprinkler system risers and hose risers.
Our factory can manufacture NFPA20 compliant fire pumps.
Fire pumps can function with electric motors or diesel engines, and if local building codes require electricity independent of the local grid, pumps using electric motors can use the installation of an emergency generator when connected through a transfer switch listed.

A fire pump is part of the water supply for a fire sprinkler system and is powered by electricity, diesel or steam. It uses water from an external source to increase water flow and pressure. The pump inlet is either connected to a public groundwater supply line or to a static water source. The pump provides higher pressure water flow to the sprinkler system risers and hose risers. Fire pumps must be tested monthly and annually to ensure they are operating as designed. These two different tests are called the monthly “churn” test and the annual flow test.

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.

Fire pumps are rated based on their capacity and pressure performance. The two key ratings are:

Gallons Per Minute (GPM): This rating indicates the pump’s flow capacity and how much water it can deliver per minute. It is essential to ensure that the fire pump can meet the specific flow requirements of the fire protection system.

Pressure (PSI): The pressure rating specifies the force with which the pump can deliver water. Sufficient pressure is critical for effectively propelling water through the fire sprinklers and hoses.

Understanding these ratings is vital when selecting a fire pump for a facility, as it ensures that the pump can meet the specific needs of the fire protection system.

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.

1. Electric fire pump: various end suction pumps and split pumps.
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.

Diesel engine fire pumps have been widely used in fire diversion as fixed fire extinguishing equipment, especially in the case of sudden fire water supply such as lack of power supply or abnormal power supply, fire pumps equipped with units are horizontal single-stage, multi-stage special fire pumps, mainly composed of diesel engines. , fire pump, connecting device, fuel tank, radiator, battery pack, intelligent automatic control screen, etc. Diesel engine fire pump products have the characteristics of leading technology, high degree of automation, excellent performance protection function, reasonable structure, simple installation and high cost performance. At the same time, in order to meet the different needs of users and reasonable investment, the products are divided into multiple application series such as fire pumps, industrial emergency pumps, agricultural pumps, marine pumps, trailer-type mobile water pump stations, etc., which can be used together with electric fire pumps.

DJ (diesel pump + jockey pump) Fire Pump Set
DJ Fire Pump Set The fire pump set consists of a pump connected to the diesel engine, pressure jockey pump, pressure vessel, controller for manual or automatic operation of the system and standard accessories mounted on the base. The fire pump system can be customized for different uses, such as high-rise buildings, facilities, hospitals, supermarkets, shopping malls, villas, apartments, etc.

Diesel engine fire pumps can be used for fire water supply in warehouses, docks, airports and other places. We usually choose the appropriate diesel engine fire pump model application according to the head, flow rate, power, medium properties, required materials, etc. provided by the user. In order to avoid mistakes, the loss caused by the installation environment will also be considered comprehensively to ensure stable and reliable efficiency.

This equipment is an EEJ fire pump set customized by a Greek customer with a frequency of 50Hz. The electric pump adopts an XA pump.This pump combines the advantages of similar products in China and abroad, and is designed with excellent hydraulic model.

The EEJ fire pump set is composed of two electric pumps + one jockey pump. The motor of the electric pump is directly connected to the ISW pump head. The jockey pump adopts CDL pump, adopts high-quality NSK bearing and wear-resistant mechanical seal, which is suitable for any emergency firefighting occasion. . Products can be customized according to their own needs.

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.

What kind of terrain to choose what kind of water pump

This problem, in short, is the selection of water pumps. The following are the applicable way for you to choose water pumps from zjbetter. I hope they can help you choose water pumps and help you better. Choose the water pump that suits your design.
1. Confirm the use terrain
First understand the terrain in which the outfit is used, including temperature, moisture, air pressure, air cattiness, dustproof and leakproof conditions, and the position of dangerous areas.
2. Confirm operating conditions
Refers to the liquid face pressure( absolute) on the suction side of the liquid, the liquid face pressure on the discharge side, intermittent or nonstop work, fixed or mobile position, and the convenience of installation and conservation.
3. Confirm the nature of the medium
Medium temperature, viscosity, density, impregnated vapor pressure, solid flyspeck periphery and content, gas content, cattiness, volatility, trap, toxin.
4. elect the material of the pump bathe corridor
According to the physical and chemical parcels of the pumped medium above, the material of the inflow- passing corridor is determined.
5. Determine performance parameters
The performance parameters of the water pump can be determined by computation, analogy, test and other styles.
6. Determine the installation type
The installation of the channel is determined by the layout of the channel and the installation point, and there are direct connection, perpendicular and other types.
8. Determine the number of pumps
In general, spare pumps, especially fire pumps, are set up, and the number of pumps is named according to different situations.

1. Ensure that you understand the manual or instructions that accompany the fire pump and water pump.
2. Follow the manufacturer’s instructions and recommendations for installation and operation.
3. Make sure that the power supply used is in good condition and always isolated from the power when setting up the pump.
4. Make sure that the pump and its parts are maintained in perfect condition all times.
5. Test the readiness of the pump for use and ensure that it is in top working condition before putting it to use.
6. Determine the exact amount of water needed and make sure that the pump is operated within the recommended pressure limits and flow rates.
7. Do not operate the pump for longer periods of time than prescribed in the manual.
8. Use the proper safety equipment and clothing when operating the pump.
9. Ensure that the water is discharged in a controlled way.

Although the electric fire pump has the advantages of simple operation and maintenance, the design specifications of most fire protection systems stipulate that when using the electric fire pump set, it should have the condition of double circuit power supply, and usually should have the diesel engine fire pump set as a backup pump set. Electric fire pump sets are driven by electric motors, and there are many varieties with different structures such as horizontal and vertical. The electric fire pump set has a small footprint, light weight, low noise, and good start-up and operation performance.

1. The fire pump pump room should be located close to the water source.

2. The location should allow easy access for maintenance and repair.

3. The area should be well-ventilated and protected from extreme weather conditions.

4. The room should be suitable for operation and maintenance of the fire pump system.

5. The pump room should be protected from unauthorized access.

6. The area should not be subject to flooding.

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.

This diesel-powered fire protection system is specifically engineered for industrial and commercial buildings, delivering an efficient, stable, and continuous water supply during firefighting operations. Utilizing a high-performance diesel engine to drive a multi-stage pump assembly, the system quickly achieves the required head and flow rate under various conditions, ensuring ample water pressure is available in the early stages of a fire.

Designed with an integrated modular approach, the system features an intelligent control panel, real-time monitoring instruments, and remote alarm functions that significantly enhance automation and operational safety. Its compact design makes installation simple and space-efficient, making it ideal for industrial workshops, warehousing centers, and high-rise commercial buildings with limited space. Rigorously tested to comply with multiple international and domestic fire safety standards, this system provides a robust and reliable fire protection solution for critical projects.

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.

A fire pump is a device that increases water pressure for fire protection systems, while a fire hydrant is an external water supply point for firefighters to connect hoses. Fire pumps are often used within buildings, while fire hydrants are located externally for access by firefighting teams.

The EEJ Pump Set is designed according to the customer’s specifications which is including 2 electric pumps, 1 jockey pump and 1 control panel.

Controllers ready to dispatch
This is the controller for jockey pump, electric pump and fire pump set

Fire pumps are more commonly used in commercial and industrial settings. Residential buildings often rely on municipal water pressure for fire protection. However, in some cases, residential structures with specific design requirements may incorporate fire pumps.

Integrated diesel engine fire pump system with compact design, high reliability, and smart control—ideal for industrial, high-rise, and off-grid fire protection.

Diesel engine fire pumps are suitable for use in high lift and high flow fire water supply environments or as backup fire water supply pumps. The reason is that the diesel engine has strong power and can be used with large flow fire deep well pumps, and the diesel engine fire pumps have the characteristics of self-starting when power is off. Emergency water supply available.

1.Flow：30-9000 GPM
2.Head： 3-20 Bar 40-300 psi
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.

Diesel engine fire pumps are widely used in water supply and firefighting work in the field of firefighting, such as building firefighting, fire fighting, rural firefighting, etc. The diesel engine fire pump has the advantages of quick start, stable operation, large water flow, long service life, etc., and can meet the fire protection needs of different occasions.

ZJBetter provide three types of fire pump system, such as diesel engine fire pump set, electric driven fire pump set, EDJ fire pump set.

In urban areas, where water supply systems may be complex and highly interconnected, fire pumps play a crucial role in ensuring resilience and reliability. These pumps help maintain adequate water pressure and flow across different zones within the city, especially during peak demand periods or in the event of a fire. Fire pumps are often integrated into municipal water systems, providing additional pressure support for firefighting efforts and ensuring that water can be delivered quickly to where it is needed most. In some cases, fire pumps are also used to support the overall stability of the water supply network by compensating for pressure drops caused by infrastructure issues or increased usage.

·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