Comparison of two self-inspection methods for fire pumps

Mutistage EEJ Fire Pump Set comprises a combination of two sets electric motor driven pump and jockey pumps that supply for fire suppression systems.

·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

Diesel engine fire pump is a kind of fire-fighting equipment that we often see and use in our life. The diesel engine fire pump has the characteristics of good starting performance, strong overload capacity, compact internal structure, convenient maintenance, simple operation and high degree of automation. It is a very reliable fire fighting equipment.

Fire pump equipment has the characteristics of mature technology, high degree of automation, protection function, reasonable structure and easy installation. At the same time, in order to meet the different needs of users and reasonable investment, the products are divided into fire pump, industrial emergency pump, agricultural pump and other application series, can be linked with the electric fire pump switch use.

UL fire pump, certificate number EX28132,
meet UL 448 standard for pumps for Fire-Protection Service
Flow 200-2000 GPM
Rated pressure: 103-224 PSI
Speed： 2950-3550 RPM (50hz or 60hz)
Maximum working pressure: 280 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.

The fire pump unit can be classified according to the following rules:
1 according to the form of power source, it can be divided into:
A) diesel engine fire pump unit
Motor fire pump unit
C) gas turbine fire pump unit
D) gasoline engine fire pump unit
(2) it can be divided into:
A) water supply fire pump unit
Stabilized pressure fire pump unit
C) hand lift motorized fire pump unit
3. According to the auxiliary characteristics of the pump unit, it can be divided into:
A) common fire pump unit
Deep well fire pump unit
C) submersible fire pump unit
The above is the basic classification, but various types can be combined with each other, such as medium and low pressure fire pumps, high and low pressure vehicle fire pumps, ordinary fire pump sets, electric submersible fire pump sets, etc

Industrial manufacturing plants often deal with hazardous materials, heavy machinery, and complex processes, making fire safety a critical concern. Fire pumps are essential in these facilities for delivering sufficient water pressure to fire suppression systems like sprinklers, standpipes, and specialized suppression systems, such as foam or gas-based systems used for chemical fires. Jockey pumps help maintain pressure in these extensive systems, ensuring they are always ready to activate immediately. In many industrial plants, fire pumps need to handle large volumes of water to cover expansive areas like production floors, storage facilities, and hazardous material zones. Additionally, fire suppression systems must be designed to address specific risks, such as oil-based fires, electrical hazards, or flammable chemicals. Fire pumps in these environments require regular maintenance and testing to ensure they remain reliable, especially given the high risk of equipment malfunction or accidents in such settings. Integrating the fire pump system with automated fire detection systems, alarms, and emergency response protocols is critical for minimizing damage and protecting workers in the event of a fire.

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.

The large-scale EDJ electric diesel dual-drive fire pump is a fire-fighting water supply equipment with dual drive of electric power and diesel engine designed and manufactured by Youbeide Technology Co., Ltd. according to the standard of <>, and has obtained 3CF certification. There are many models of Better dual-power fire pumps, which can be customized according to needs.

Fire pump system is made of Diesel+Jockey pump
1. Diesel engine pump, can use single stage pump, horizontal split case pump, end suction pump, multistage pump, material can be cast iron, stainless steel, and bronze impeller , with fuel tank, water tank，fan, control box
2. Jockey pump, horizontal or vertical, capacity will be small, but head should be higher than electric and diesel engine pump
Jockey material casing: cast iron, shaft and impeller: SS304

The minimum rated pressure of small fire fighting package set water supply equipment is 3 bar, and the minimum rated capacity is 25 GPM.EDJ 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 instrunnents, control cabinets, outdoor rain cover, etc.

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

·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 should be inspected and maintained in accordance with local regulations and standards, but typically, they should be inspected at least annually and undergo a more comprehensive test every three years.

Safety precautions include wearing appropriate protective gear, ensuring proper ventilation when operating gasoline or diesel-powered pumps indoors, following proper procedures for fueling and starting the pump, and maintaining a safe distance from flames and hazardous materials.

Applications:
High-rise hotel, high public places;
High-rise office buildings, high-rise residential;
Chemical, oil refining, metallurgical, enterprises;
Energy, medicine and military, enterprises.

A diesel engine fire pump is a type of fire-fighting equipment with reliable performance. Even so, when using the equipment, we must still adhere to its prescribed safety operating procedures to avoid any unnecessary issues.

We can manufacture fire pumps that are NFPA20 compliant and UL listed.
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.

When customers choose a fire pump, they must choose the fire pump with the appropriate specifications according to their own needs, so that the fire pump can play its best role. And when choosing a fire pump, you must choose a fire pump produced by a regular manufacturer. Such a fire pump has more quality assurance, and the manufacturer will also provide customers with better after-sales service. When choosing a fire pump, don’t be blinded by those ultra-low-priced fire pumps on the market. Behind the ultra-low price, there are bound to be some quality defects hidden.

·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

Yes, fire pumps can be essential in remote or rural areas where a dedicated water supply for firefighting may not be readily available. They can draw water from natural sources or dedicated water tanks.

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.

With the advent of the information age, people have higher requirements for the quality of life, and fire safety is particularly important for high-rise buildings. The state attaches great importance to fire safety work. All workplaces require us to be equipped with fire safety facilities, and fire pumps are necessary water intake equipment for fire infrastructure. The commonly used fire pumps in my country are electric fire pumps and diesel fire pumps. The difference between the two is that electric fire pumps require a power system, and diesel engine fire pumps can be started at any time to fill the original position of electric fire pumps.

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.

1.Flow：30-9000 GPM
2.Head： 3-20 Bar
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.

The kit includes a main pump connected to the electric motor, a backup pump connected to the diesel engine, jockey pump, pressure vessel, controller for manual or automatic operation of the system and standard accessories on the base. Fire pumps shall be end-suction or single-stage horizontal split or horizontal multi-stage centrifugal, depending on system capacity and head requirements. The electric fire pump is flexibly coupled with the motor. The diesel engine is fixed on the base with an anti-vibration rubber pad, and the pump is directly coupled with the diesel engine through an elastic coupling, according to the power output of the engine.

First, what’s a water pump? It’s a device used to transport liquid, pressurize the liquid, and make the liquid from the first liquid position to the high liquid position. The first water pump constructed by the Chinese is called” water windmill”. latterly, around 300 BC, the emergence of the” Archimedes screw pump” is more analogous to ultramodern pumps. In addition, the following introductory knowledge points are what you must understand.
1. Centrifugal pump

Centrifugal pump is the most common type of pump. In simple terms, the working principle of centrifugal pump is to rotate the impeller to drive the liquid under the action of centrifugal force. The liquid leaves the impeller and enters the volute. As the inflow passage of the volute gradationally expands, the fluid haste slows down, and the pressure rises continuously, and eventually it’s discharged through the conduit.
2. Impeller
The impeller is one of the main factors in the water pump, and it’s the core element that transmits mechanical energy to the liquid. The impeller is substantially divided into three types open type,semi-open type and closed type. The material conditions for the impeller are high, wear resistance is needed, and the manufacturing process is good.

3. Cavitation

Cavitation is the conformation of numerous bitsy recesses when the liquid connections the liquid under high- speed inflow and pressure, and gradationally expands into grottoes when serious, and cavitation frequently occurs in the impeller and pump covering.

It’s the 3D Display of Fire Pump Set and its working principle. The fire pump set is usually consisting of jockey, electric&diesel engine pump along with control panel and accessories.

The electric fire pump set is a medium and low pressure fire pump product developed by our company in strict accordance with the technical requirements of the national standard GB6245-2006 (fire pump) and the National Fire Protection Association NFPA20 (installation of centrifugal fire pumps). The product has passed the type inspection of the National Fixed Fire Extinguishing System and Refractory Component Quality Inspection Center.