Optimize Fire Protection Systems with Vertical Multistage Fire Pumps

Flow: 14-2700 GPM
Head: 12-80 meter
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.

Diesel engine fire pump is mainly composed of diesel engine, fire pump, coupling, fuel tank, radiator, battery pack, intelligent automatic control panel, etc. The company’s products are designed and optimized by computer. Our company has strong technical force, rich production experience and perfect testing methods to ensure the stability and reliability of product quality. The diesel engine fire pump adopts international advanced technology, sliding bearing, plate-fin air cooler, upper heat exchanger, spin-on oil filter and dual cooling system. The smoke and noise indicators reach the national high-quality product, and the fuel consumption is lower than the national standard high-quality product of 2.1g/kW.h.

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.

A fire pump is a crucial component of a fire protection system that provides the required water pressure to deliver water to the fire sprinkler system or other firefighting equipment, ensuring an adequate supply of water in case of a fire emergency.

·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: 14-2700 GPM
Head: 12-80 meter
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.

Fire pumps are designed to adapt to varying water supply conditions, such as fluctuating pressures or varying water levels in a reservoir. They achieve this through features like variable speed drives, which adjust the pump’s speed to maintain consistent water pressure and flow, regardless of changes in the supply.

The diesel engine fire pump needs to be aimed at the occasion of large flow and high head fire water material supply, and it has good characteristics of the starting system for diesel automobile engines, fast starting development speed, strong overload capacity, no need for standby operation, and effective energy saving. Diesel engine firefighting pumps have complete performance and a wide range. Single-stage single-suction pumps, multi-stage single-suction pumps, self-priming pumps, long-axis pumps and other pumps can be used, and they can also be used in combination and in parallel. The flow and pressure ranges are wide. Diesel fire-fighting pumps are widely used in fire-fighting system water supply in various occasions of industrial and mining production enterprises such as data warehouses, docks, airports, petrochemicals, and power plants.

Fire pump controllers are devices that monitor and control the operation of fire pumps. They ensure that the pump starts automatically during an emergency, regulate pressure, and provide safety features. Controllers play a crucial role in the overall functionality of the fire pump system.

The ED Dual-Power Fire Pump System combines electric and diesel engine pumps to ensure uninterrupted fire protection and a reliable water supply. In the event of power outages or electrical failures, the diesel engine pump seamlessly takes over, guaranteeing continuous operation of the fire protection system. This dual-power configuration offers both reliability and flexibility, providing comprehensive coverage for fire safety needs. With smart controls and automatic switching mechanisms, the transition between electric and diesel engine pumps is seamless, minimizing system downtime. Equipped with advanced safety features, including monitoring and alarm systems, real-time status updates allow for prompt action in case of any irregularities.

Diesel engine fire pumps are often used for emergency water supply in high-rise buildings, water companies, steel plants, wineries, chemical plants, hotels, hospitals, and other large-scale projects. Diesel engine fire pump is suitable for unattended emergency water supply system. The product has the characteristics of advanced technology, high degree of automation, superior performance, complete protection functions, reasonable structure, simple installation, and high cost performance. net pressure. Diesel engine fire pumps are selected according to different working conditions: single-stage single-suction centrifugal pumps, high-pressure multi-stage pumps, double-suction split pumps, etc.

1. Increase the suction head: Increasing the suction head, or the vertical distance between the suction inlet and the centreline of the impeller, can reduce the chances of cavitation.

2. Increase the impeller speed: Increasing the impeller speed can also reduce the chance of cavitation.

3. Install an air separator: An air separator in the suction line can help remove any entrained air from the system, thus reducing the chance of cavitation.

4. Install a venturi: A venturi installed in the suction line can help create an area of low pressure, which can reduce the chance of cavitation.

5. Install a priming valve: A primer valve can help reduce the suction head and thus reduce the chance of cavitation.

6. Install a vacuum breaker: A vacuum breaker can be used to reduce the pressure in the suction line, thus reducing the chance of cavitation.

7. Improve the suction piping: Improving the suction piping, such as using larger pipes, can reduce the chance of cavitation.

8. Inspect the pump and suction line: Inspecting the pump and suction line for any signs of wear or damage can help reduce the chance of cavitation.

Diesel engine fire pump is simple in structure, reliable in performance, small in size, light in weight, good in corrosion resistance, low in power consumption, easy to use and maintain, suitable for urban environmental protection, construction, fire protection, chemical industry, pharmaceuticals, dyes, printing and dyeing, brewing, electricity, electroplating , papermaking, petroleum, mining, equipment cooling, tanker unloading, etc. Diesel engine fire pumps are used in warehouses, wharfs, airports, petrochemicals, power plants, liquefied gas, textiles, ships, tankers, enterprise backup and other fire-fighting water supply in various occasions, and can also be used for domestic water supply.

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.

EEDJ fire pump set consists of two electric pumps + diesel pump + jockey pump, which is manufactured according to customer requirements. All fire pumps use ISW pumps. The advantages of this fire pump set are easy installation, high cost performance, and suitable for any fire fighting. In emergency situations, it is equipped with a diesel engine pump, which can run even when the power is cut off.

Flow-500gpm; Head-125psi
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.

Best practices for maintaining diesel fire pumps include following the manufacturer’s recommended maintenance schedule, conducting regular inspections of critical components such as belts, hoses, seals, and bearings, performing routine lubrication and fluid checks, and keeping detailed records of maintenance activities and any repairs or replacements performed. Additionally, it’s essential to address any issues promptly and to ensure that all maintenance personnel are adequately trained and equipped to perform their duties safely and effectively.

The biggest difference between a diesel engine fire pump and an electric water pump is that it has its own independent power supply system, which ensures the normal operation of the project without power or power supply. Its role is self-evident, and it can be said to be a great helper in fire emergency .
In terms of industrial applications, diesel engine fire pumps are widely used in emergency water supply for large-scale projects such as high-rise buildings, steel plants, chemical plants, hotels, and water works.

Diesel engine fire pump is also called “engineering diesel engine fire pump set”. 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, three start failures, high water temperature, low oil level, and low battery voltage. It can completely meet the fire water supply in various occasions of warehouses, docks, airports, petrochemicals, power plants, liquefied gas stations, textiles and other industrial and mining enterprises.

The diesel engine fire pump has automatic, manual and fault self-checking functions. It can monitor the working state of the whole process, restore the function of failure start, automatic pre-lubrication and automatic restart of preheating, so that the equipment start-up is safer and more reliable. It has the functions of central control room remote control, remote control and field bus connection. The battery is fully automatic floating charge (constant current, constant voltage, trickle charge) mode to ensure that the battery is in a standby state at any time. Diesel engine fire pump is easy to use, equipped with remote instrument and instrument, which can be connected to the control center as needed, easy to install and use, and easy to maintain.​​

EDJ series fire pump set consists of electric pump + diesel pump + jockey pump and all accessories.
The pressure switch and the control cabinet can automatically turn on/off the three pumps, the electric pump and the pipeline pressure pump work when there is electricity, and the diesel pump is started when the power is off.

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. It is mainly used in fire water supply and foam fire extinguishing systems in industries such as petroleum, chemical industry, natural gas, power plants, textiles, wharves, gas stations, storage, high-rise buildings, etc.

Explore alternative uses for fire pumps, such as irrigation or industrial water transfer. Explain which adjustments may be required, including changes to pressure settings, and discuss any limitations, such as pump durability when used for non-fire applications. Emphasize that while possible, it’s essential to consult professionals to ensure safe modifications.

Fire pumps are mainly used for pressurized water delivery in firefighting system pipelines, and can also be used in industrial and urban water supply and drainage, high-rise building depressurized water delivery, long-distance water delivery, heating, bathrooms, boiler cold and warm water circulation pressurized air conditioning refrigeration system water delivery and equipment matching, etc.

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 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.

ED Fire pump system is made of Electric pump +Diesel pump
Operation: 1 Duty (electric) + 1 standby (diesel engine)
Capacity: 25, 30, 50, 100, 150, 200, 300, 400, 500, 750, 1000…GPM with pressure 4, 5, 6, 8, 10… Bar.
Pressure vessel 25, 50, 75, 100…liters, pressure will be 0.6mpa, 1.0mpa, 1.6mpa, select according to pump head.

Flow: 30-9000 GPM
Head: 3-20Bar
Speed: 740-2900r/min
Material: HT200, SS304, Bronze

The EJ Fire Pump Set is combined an electric pump and a jockey pump.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.

With the characteristics of full sealing, no leakage and corrosion resistance, fire pumps are widely used in environmental protection, water treatment, fire protection and other departments. They are ideal pumps for building non-leakage, non-pollution civilized workshops and civilized factories. Our commonly used fire pumps are electric fire pumps and diesel engine fire pumps. The difference between the two is that the electric fire pump needs power system supply. If the power is cut off, the diesel engine fire pump can be started at any time to make up for the original position of the electric fire pump.

Flow: 120~1500GPM
Head: H＜150m
Speed:2950-3550RPM