EDJ fire pump is the first choice for emergency situations

Flow testing is a critical aspect of fire pump maintenance and compliance with safety standards. This article explores the fundamentals of fire pump flow testing, including procedures, equipment, and the significance of accurate testing to verify system performance. It discusses the relationship between flow testing and water distribution and highlights the need for regular testing to ensure optimal fire protection.

Electric pump + diesel pump + joceky 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 video displays detailed analysis of fire pump set test. Fire pump sets manufactured by our factory are tested before delivery.

Fire pump system is made of Electric Pump + Diesel Engine Pump+Jockey Pump+Accessories

Operation: 1 Duty(electric pump ) + 1 stand by(diesel engine pump ) + 1 Jockey fire pump

Capacity: 100GPM, 150GPM, 200GPM, 300GPM, 400GPM, 500GPM, 750GPM, 1000GPM, 1250GPM…GPM with Pressure 4Bar, 5bar, 6Bar, 10Bar, 15Bar… Bar.

Fire pump systems play a crucial role in fire protection. When selecting a system, it is essential to consider factors such as building size, flow requirements, head pressure, and power source to ensure stable water supply in emergencies. Properly matching the pump model not only prevents overload or mismatches but also extends the equipment’s service life. Additionally, focus on product quality, manufacturer credentials, and compliance with national and international standards. Regular maintenance and inspections after installation further enhance the system’s overall safety and reliability.

In challenging environments such as high temperatures, freezing cold, high humidity, or dusty industrial zones, conventional fire equipment often fails to perform reliably. To meet these demanding conditions, we proudly present our Heavy-Duty Diesel Fire Pump Set — a robust solution specifically designed for extreme working scenarios.

Powered by an industrial-grade diesel engine, this unit offers strong torque and excellent start-stop response. It is equipped with a high-flow, high-head end suction or split-case fire pump, delivering steady water pressure even under the most adverse conditions. Built on a solid steel base, the unit is resistant to vibration and corrosion, making it ideal for long-term continuous operation.

Its intelligent control system supports automatic start/stop, remote monitoring, and alarm linkage, ensuring safe and efficient performance even in unattended situations. Optional features include dual power switching, automatic battery charging, and preheating for rapid startup and stable operation.

Whether deployed in petrochemical plants, power stations, mining fields, or offshore platforms, this heavy-duty diesel fire pump set stands as a reliable line of defense for life and property.

Diesel fire pumps are ideal for applications where a separate pump room already exists or where the pump room is located on an exterior wall. Facilities using diesel fire pumps include warehouses, aircraft hangars and industrial facilities. Since they have a larger footprint than electric fire pumps, they are not suitable for installations where space is small. Unlike diesel pumps, electric fire pumps can be located inside buildings. Office buildings and apartments are often equipped with electric fire pumps. In addition, upper floors sometimes install an additional electric fire pump above ground or basement to increase water pressure.

The minimum fire rated pressure of ED small fire fighting package set water supply equipment is 3 bar and the minimum fire rated capacity is 25 GPM. ED small fire fighting package set water supply equipment includes at least two power or power source driven pumping units, pressure tanks, pipes, valves and accessories, measurement and control instruments, control cabinets, outdoor rain cover, etc.
Motor: Three-phase asynchronous squirrel-cage motor independently developed and manufactured by our company, which can be controlled in production time and greatly shorten the whole set production time.
Diesel Engine: According to the different parameters of customers, we will choose diesel engines with high cost performance ratio. The main brands are QuanChai, Weichai, ShangChai, FAWDE, Cummins, etc.
Electric Pumps: Electric pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Diesel Pumps: Diesel pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Electronic Components: The main electric components is CHNT, if Schneider or other brand electrical are need, should mention it before place the order.
Safety Valve plays a safety protection role in the system. When the system pressure exceeds the prescribed value, the safety valve opens, and a part of the gas/fluid in the system is discharged into the atmosphere/pipeline, so that the system pressure does not exceed the allowable value, so as to ensure that the system does not cause accidents due to excessive pressure.
Pressure Tank: Water is a non-compressible medium. Generally speaking, the pressure drop of fire-fighting pipe network is normal. However, the pressure drop is very slow, the total loss of water in the pipe network isnot large, and the frequent change of pressure in the pipe network leads to frequent start-up and shutdown of pumps. Especially when the power of equipment is high, it will cause great impact on pressure sensors, relaysand motors, thus affecting the performance and life whole equipment. Therefore, it is necessary to choose the right volume of the pressure tank.

Diesel engine fire pump is also called “engineering diesel engine fire pump set”. Its national standard model is XBCL/Q, where L and Q represent the lift value and flow value of the fire pump respectively. This type of diesel engine fire pump set has good starting performance, compact structure, humanized design, convenient maintenance, simple and convenient use, and high degree of automation. It is a very good fire pump.

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.​​

This fire pump features advanced hydraulic design and high-efficiency motor technology to maximize energy utilization. Its optimized impeller and flow passage structure reduce energy loss, improving hydraulic efficiency while lowering unit energy consumption. The intelligent control system automatically adjusts operating conditions based on demand, preventing unnecessary energy waste while ensuring stable and reliable water supply performance. Additionally, the low-noise and low-vibration design minimizes operating costs and extends service life. With its high efficiency and energy-saving advantages, this pump is an ideal choice for various fire protection systems, providing stable and reliable water supply when it matters most.

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.

DJ Fire pump package set
Fire pump system is made of Diesel+Jockey pump
The pump model is the OTS series.
Pump: Horizontal split case type pump

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 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.

·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 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.

500gpm8bar EDJ waiting for dispatch

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.

The pressure stabilizer pump is a kind of fire pump. It is used to stabilize the pressure of the automatic sprinkler system and the fire hydrant water supply system, so that the water pressure of the system is always in the required pressure state. Water volume and water pressure.

High quality and low price fire pump, factory direct sales, professional production and sales team, actively and properly solve customer feedback after-sales problems.

This integrated electric fire pump set is specially designed for modern urban fire protection systems. It combines the control cabinet, fire pump, piping system, and pressure gauges into one compact unit, making installation easy and space-efficient. Powered by a high-performance electric motor, the pump offers stable operation and fast response, ensuring reliable water supply during fire emergencies in high-rise buildings, industrial zones, and commercial complexes.

The smart control system features automatic start/stop and fault alarms, significantly enhancing operational safety and reliability. With its compact structure and intelligent design, this pump set is the ideal choice for advancing urban fire protection into a smarter and more efficient era.

The diesel engine fire pump set has good starting performance, compact structure, humanized design, convenient maintenance, simple and convenient use, and high degree of automation. It is a very good fire pump. The diesel engine fire pump has the advantages of long head and wide application range, and can meet the fire water supply in multiple places such as warehouses, docks, airports, power plants, liquefied gas stations, and petrochemical industries.

EDJ fire pump set is composed of electric pump + diesel pump + jockey pump. The pump set adopts ISO pump,ISO series centrifugal pump is a single-stage single-suction centrifugal pump developed by China Better Technology Co., Ltd. with reference to international similar products using modern fluid mechanics to meet the international standard ISO9908 secondary energy efficiency standard.
This product combines the strengths of similar products in China and abroad and is designed with excellent hydraulic models, therefore, its excellent hydraulic performance and structural features ensure that the user can effectively reduce the operating cost of the pump in various applications.

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, high-rise building underpressure water supply, long-distance water supply, heating, bathroom, boiler cold and warm water circulation pressurized air conditioning refrigeration system water supply and equipment matching and other occasions. The fire pump produced by Better Technology Group Co., Ltd. has the advantages of simple structure, stable performance, high speed, small size, light weight, high efficiency, large flow, easy operation and maintenance, 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

EEJ fire pump set is an electric-driven fire water supply equipment designed and manufactured by Better Technology Co., Ltd. according to the standard of <>, and has obtained 3CF certification. Better produces many types of fire pumps, which can be customized according to needs.

This diesel engine fire pump set is engineered to perform in challenging and unpredictable environments. Completely independent of the power grid, it delivers exceptional operational reliability, ensuring continuous water supply in critical moments. Powered by a world-class diesel engine, it features rapid start-up, robust torque, and consistent performance during power outages, extreme weather, or emergencies—making it ideal for mines, chemical plants, airports, and high-rise buildings.

The unit comes equipped with an intelligent control panel offering automatic start/stop, fault alarms, and real-time monitoring for simplified operation and easy maintenance. Its compact design allows it to fit into space-constrained installations. Whether in high-temperature, high-humidity, or freezing conditions, this diesel fire pump system delivers stable and efficient performance—an ideal solution for industrial-grade fire protection.

Assess the facility’s size, layout, and potential fire hazards to determine required flow and pressure. Consider the water supply available, pump type (electric, diesel), and specific applications. Consulting with a fire protection engineer can also help ensure compliance with local regulations and standards.

EDJ series fire pump set consists of Electric pump + Diesel pump + Jockey pump and all accessories.
The pressure switch and control cabinet can automatically turn on/off three pumps-the electric pump and jockey pump operate when there is electricity and the diesel pump activates when the power cuts.
Flow Capacity Range:50-5000 GPM
Pressure Range:4-14 Bar
Power Range：4-325 KW

Last month our customer from Ecuador ordered 2 sets EDJ fire pump set from our factory. The gpm and bar he needs is 350gpm@135psi, and he will use these two fire pump system in his factory.