How do you troubleshoot common issues with fire pumps?

EEJ Fire pummp set
Fire pump system is made of E+E+J
Operation: 1 Duty (electric) + 1 standby (electric) + 1 Jockey
Capacity: 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.

Diesel engine fire pump is a kind of mechanical and electrical integration equipment that is directly driven by diesel engine fire pump and can start and complete water supply in a short period of time. Diesel engine pumps are driven by diesel and do not need an external power supply. Diesel engine water pumps are suitable for various fire water supply occasions such as agricultural irrigation, emergency rescue, smelting, hangars, petrochemical oil depots, power plants, liquefied gas stations, textiles, etc., especially where there is no electricity, When the power grid is not satisfactory, it is the safest choice to use a diesel engine to drive the water pump.

With the continuous development of society, people have higher requirements for the quality of life, and the safety of diesel engine fire pumps is more important. All places need to be equipped with fire-fighting facilities, and fire pumps are water intake equipment for fire-fighting facilities. A fire pump Our commonly used fire pumps are electric fire pumps and diesel engine fire pumps. The difference between them is that electric fire pumps need power system supply. In the event of a power failure, the diesel engine fire pump can be started at any time to make up for the original position of the electric fire pump.

The electric pump of the EDJ fire pump group is the main pump, the diesel engine pump is the backup pump, and the jockey 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 electricity from the The signal from the contact pressure gauge will start the diesel engine pump within 5 seconds, and reach the rated working condition within 20 seconds to ensure the normal operation of the fire extinguishing work.

The fire pump is mainly used for pressurizing water supply in the pipeline of the fire fighting system. It can also be used in industrial and urban water supply and drainage, high-rise buildings and 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.

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.

Firefighting pumps are often integrated with other firefighting equipment and systems, such as fire hoses, fire hydrants, sprinkler systems, and fire suppression systems. This integration ensures a coordinated and comprehensive approach to fire protection and emergency response, enabling firefighters to work together seamlessly to combat fires and protect communities.

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.

Discuss the importance of regular fire pump testing to ensure system readiness in case of an emergency. Describe weekly churn tests and annual flow tests, explaining how these tests verify the pump’s performance, check for potential issues, and maintain compliance with NFPA and insurance requirements. Include a checklist to make testing straightforward and encourage record-keeping.

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.

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.

Strategies include:

Water Recycling: Implement systems to recycle water used during pump testing, minimizing wastage.
Eco-Friendly Testing Methods: Use methods that reduce water consumption, such as flow meters that simulate flow conditions without discharging large volumes of water.
Regular Maintenance: Keep the pump in good working order to reduce the frequency and duration of testing needed.
Environmental Monitoring: Monitor and manage the environmental impact of testing activities, ensuring compliance with local environmental regulations and standards.

The diesel engine (can be equipped with a clutch) is combined with the fire pump through a highly elastic coupling to form a fire pump unit. The unit also includes diesel tanks, cooling water tanks, fans, control panels (for automatic units) and other components.
When the unit is automatically controlled, the split or diesel engine automatic control cabinet (programmable) realizes the automatic start, input, and automatic switching of the system (switching from the electric pump group to the diesel engine pump group or from this group of diesel engine pump groups to another group of diesel engines) pump set), automatic protection (diesel engine overspeed, low oil pressure, high water temperature, three start failures, low oil level, low battery voltage and other alarm shutdown protection) and other functions, and can also interface with the user’s fire center or automatic fire alarm device, Realize remote monitoring.

A multistage pump refers to a pump with two or more impellers, which can absorb and press water in stages and multiple stages, so as to lift the water to a high position, and the lift can be increased or decreased according to the needs of the pump impeller. The multistage pump can be equipped with a four-stage motor by increasing the number of impellers when the single-stage pump head needs to be equipped with a two-stage motor, which can improve the service life of the pump and reduce the noise of the unit. It is placed flat on the ground, with better stability, large flow and head, and wider application.

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.

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.

The fire pump is mainly used for various fire hydrants and spray fire main pumps. It is also suitable for various fire booster and pressure stabilizing pumps. It is also suitable for various villas, residential areas and other fire protection systems, industrial and civil The building fire protection system is also suitable for various oil depots, oil loading and unloading docks, logistics parks and other places with high fire protection requirements.

DJ series fire pump set consists of 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.

Fire pumps work by drawing water from a water source (such as a dedicated water tank or municipal supply) and pressurizing it before delivering it to the fire sprinkler system or hose lines.

The EDJ （Diesel Pump:IS, Electric Pump:ISW）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.

1. Knowledge of Fire Pump Design and Components: Fire pumps are complex pieces of machinery, and technicians must be familiar with its components, including the electric motor, reservoir, impeller, and check valves.

2. Electrical Troubleshooting: Electric motor control centers, circuit breakers, and other electrical components must be understood by technicians in order to properly maintain fire pumps.

3. Instructions for Proper Maintenance: Technicians must be able to read and understand manufacturer’s instructions for inspection and required maintenance, such as oil and filter changes.

4. Record Keeping: Accurate records of maintenance must be kept in order to ensure that fire pumps are in peak working condition.

5. Diagnose and Repair of Pump Malfunctions: Technicians must have the ability to diagnose and fix common pump problems such as bearing wear, corrosion, and bearing failure.

6. Troubleshoot Accessories and Peripherals: Technicians should be familiar with fire pump accessories such as pressure switches, gauges, and houseline piping.

7. Handle Power Sources: Technicians must have the knowledge to recognize safe levels of power sources, such as AC or DC, to ensure fire pump operations.

8. Pressure Testing: Technicians must understand and follow safety procedures when pressure testing fire pumps and their related houselines.

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.

Sizing diesel fire pumps involves evaluating factors such as the building’s occupancy classification, area of coverage, hazard level, and required flow rates for firefighting purposes. Hydraulic calculations are typically performed to determine the water demand and pressure requirements, which are then used to select a diesel fire pump with the appropriate capacity and performance characteristics. It’s essential to work with qualified engineers or fire protection specialists to ensure that the pump is sized correctly for the specific application.

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.

Electric fire pumps are used in various water environments, not only to meet the general water supply but also to be a good helper for fire-fighting water. The electric fire pump is manufactured with good structure and workmanship. It has a wide range of performance, and is easy to use and operate for a long time. The electric fire pump is aimed at various fire water environments, so the selection should also be based on the actual demand environment, performance parameters, etc.

This fire fighting equipment is an important part of building fire protection system. Its
routine inspection and daily maintenance are very important for each dual-power. If the fire
pump or booster pressure stabilizer pump in the dual power system fails, the fire accident
will lead to great losses of buildings and so on. It is the responsibility of the enterprise to
ensure that all equipment is regularly maintained and inspected, including the maintenance
and maintenance of all fire fighting systems

1.Flow: 50-5000GPM
2.Head: 3-20Bar
3.Speed: 740-2900r/min
4.Power: Electric pump: 1.5-710 kw, Jockey pump: 0.55-160kw
The EEJ Fire Pump System includes two electric pumps and a jockey pump.With exceptional performance and efficiency, the EEJ Fire Pump System delivers high pressure and large flow capacity, enabling rapid and effective fire suppression.
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.

EDJ is our flagship product:
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.

EDJ Multistage Fire Pump Set is electric fire pump+diesel fire pump+jockey pump.It can meet 120GPM~3000GPM with 100m~660m.

Fire pumps should be tested regularly to ensure their proper functioning. Monthly tests for a short duration and an annual full-load test are common practices. Regular testing helps identify and address any issues promptly.