Structural characteristics of electric multistage pump sets

In cold climates or areas prone to extreme weather, fire pumps face unique operational challenges that require careful design and maintenance. Freezing temperatures can cause water to freeze in the pipes, potentially damaging the fire pump and other components of the fire suppression system. To mitigate this, fire pumps may be installed in heated enclosures, and antifreeze solutions or dry-pipe systems are often used to prevent freezing. Jockey pumps help maintain system pressure, but in extreme weather, they must be monitored closely to ensure they don’t overcompensate for changes in pressure caused by temperature fluctuations. High winds, flooding, or snow accumulation can also impact the performance of fire pumps, especially in outdoor or exposed installations. Ensuring that fire pumps have robust weather protection, backup power supplies, and regular winterization procedures is critical for maintaining their reliability in harsh conditions. Additionally, these pumps should be designed with durable, weather-resistant materials to withstand long-term exposure to extreme environmental factors while still delivering dependable fire protection.

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

Flow: 30-9000GPM
Head: 3-20Bar
Speed: 740-2900r/min
Frequency: 50 HZ or 60 HZ
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.

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.

A fire pump starts when the pressure in the fire protection system drops below a set threshold, indicating water flow caused by sprinkler activation or manual use of a fire hose. The pressure drop is detected by pressure-sensing devices, triggering the fire pump to activate and provide adequate water pressure.

The EEJ Fire Pump System is an innovative solution designed to enhance fire safety in various settings. With exceptional performance and efficiency, the EEJ Fire Pump System delivers high pressure and large flow capacity, enabling rapid and effective fire suppression. Its intelligent features, including real-time monitoring and remote control capabilities, contribute to the system’s reliability and ease of operation. Overall, the EEJ Fire Pump System is a reliable choice for safeguarding lives and properties, making it an ideal fire protection solution for commercial buildings, industrial facilities, and residential areas.

Fire-fighting package set water supply equipment manufactured by is referred to as
“dual-power”, “Fire Pump Set” hereinafter as “dual-power”, “Fixed Fire Pump Installation
Standard” and “Standard for the Fixed Fire Pump Installation Standard” of the
American Fire Protection Association in accordance with China Standard GB27898.5-2011
Fixed Fire-fighting Water Supply Equipment Part 5 “Fire Dual-power Installation of
Stationary Pumps for Fire Protection -2016 design and manufacture. Comply with the
latest Chinese national standard CCCF certification requirements and obtain the
certificate. Dual power is one of the reliable products in fire fighting water supply equipment.

Instructions for use of fire pump set:
Altitude: ¡Ü 1000m;
Ambient temperature: +5 ¡ãC ~ +40 ¡ãC;
Relative humidity: <= 90%. Scope of application of fire pump set: Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service.

·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

Ignite a new level of fire protection with the Outdoor Fire Pump Set. This versatile and reliable pump set is designed to enhance fire safety in various applications. From powering fire hydrants and stabilizing sprinkler systems to safeguarding residential areas, industrial buildings, and high-risk environments, the Outdoor Fire Pump Set delivers optimal performance and unmatched reliability. Elevate your fire safety standards with this powerful solution and gain peace of mind knowing that your property and lives are protected. Choose the Outdoor Fire Pump Set and experience the ultimate fire protection solution.

Using Instruction:
Altitude: ¡Ü 1000m;
Ambient temperature: +5 ¡ãC ~ +40 ¡ãC;
Relative humidity: <= 90%. Scope of application of fire pump set£º Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service.

The diesel engine fire pump and the electric fire pump are “one standby and one use”. The control boxes of the diesel engine fire pump and the electric fire pump should be kept independent of each other, and the diesel engine fire pump must be used as the backup pump of the electric fire pump, and cannot be used as backup for each other.

The pump start signal in the fire extinguishing system is directly connected to the electric fire pump control box, and it is not suitable to be connected to the diesel engine fire pump control box at the same time. The pump start fault signal of the electric fire pump control box and the pump start signal in the fire extinguishing system are used as the automatic start pump start signal of the diesel engine fire pump control box, and the line is connected to the control box of the diesel engine fire pump. The pump start failure signal of the diesel engine fire pump control box received an alarm from the fire control center. After receiving the alarm, the authorized personnel rushed to the pump room to force the diesel pump to start in an emergency.

1.Electric 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
2.Diesel engine pump, with capacity and head equal to electric pump, with fuel tank, water tank,fan
3.Jockey pump, horizontal or vertical, capacity will be small, but head should be higher than electric and diesel engine pump, this jockey pump is optional
4.Control panel: Auto Control for all pumps with overload, over current protection.
5.Accessories: valves, pressure vessel, Pressure Gauge, Pressure Sensor, Common Base plant

1. The fire pump packing seal should be able to form a reliable seal without leaking, and it should have good wear resistance.

2. The packing seal should have good elasticity and flexibility in order to accommodate the thermal expansion and contraction of the pump.

3. The packing seal should be able to maintain its shape and flexibility over time, and it should also be resistant to corrosion from the pump’s fluids.

4. The packing seal should be easy to install and remove, and it should be able to withstand high pressures and temperatures.

There are many types of fire-fighting equipment. Fire hydrants and fire extinguishers are the most common types. The other is the fire pump, which is the heart of the fire-fighting system and plays an important role in pressurizing the fire-fighting system. Among the numerous fire pump products, fire pumps can be divided into multi-stage and single-stage fire pumps.

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.

Handling such systems involves:

Zoning: Implement zoned fire protection systems tailored to the specific needs of different areas within the building, such as residential, commercial, and industrial spaces.
Custom Design: Design custom fire pump setups to meet the diverse requirements of each zone, ensuring adequate pressure and flow rates.
Flexible Operation: Use control systems that allow flexible operation and adaptation to the varying fire protection needs of different building areas.
Unified Monitoring: Integrate the fire pump systems into a unified monitoring and control system to ensure coordinated response and management across the entire building.

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

The EDJ （Diesel Pump:XA, Electric Pump:XA）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 pump is suitable for high-lift and high-flow fire-fighting water supply environment or as a backup fire-fighting water supply pump. The reason is that the diesel engine has strong power and can be used with large-flow fire-fighting deep well pumps, and the diesel engine fire pump has the characteristics of self-start after power failure. It can provide emergency water supply and is a good choice in fire pumps.

The National Fire Protection Association (NFPA) has established standards and guidelines governing the installation and maintenance of fire pumps. NFPA 20, the Standard for the Installation of Stationary Pumps for Fire Protection, provides comprehensive requirements for fire pump design, installation, testing, and maintenance.

Compliance with NFPA 20 standards is essential to ensure that fire pump systems are installed and maintained in a manner that meets nationally recognized safety practices. These standards help ensure the reliability and effectiveness of fire pumps in protecting lives and property during fire emergencies.

Common issues with firefighting pumps include priming failures, leaks, clogs, engine or motor problems, and inadequate water supply. Troubleshooting steps may include checking for obstructions, inspecting hoses and connections, verifying fuel and oil levels, and consulting the pump’s manual for troubleshooting guidance.

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.

·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

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.

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 fire pump equipped in the unit is a horizontal single-stage and multi-stage fire-fighting special pump. It is mainly composed of diesel engine, fire pump, connection device, fuel tank, radiator, battery pack, intelligent automatic control panel, etc.

After several years of R&D testing and certification, Beide Technology Group Co., Ltd. has obtained FM/UL certification for its existing fire pumps after obtaining domestic 3CF certification, and joined the NFPA Fire Engineers Association. Beide Technology Group Co., Ltd. has been committed to providing human beings with more reliable, more energy-saving and safer pump products.

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.

High Pressure Fire pump set for 25m3/h, 270m head, and this is two multistage pump with one outdoor type controller

Choosing a good fire pump is crucial for ensuring the effectiveness and reliability of your fire protection system. Here are some key factors to consider when selecting a fire pump:

Flow and Pressure Requirements: Determine the required flow rate and pressure for your specific application. Consider factors such as the size of the protected area, the type of fire hazards, and any applicable fire safety regulations. Ensure that the fire pump you choose can meet these requirements.

Pump Type: Select the appropriate pump type based on your needs. The two common types of fire pumps are centrifugal pumps and positive displacement pumps. Centrifugal pumps are widely used due to their high flow rates and ability to handle large volumes of water. Positive displacement pumps, on the other hand, are better suited for applications that require high pressure but lower flow rates.

Performance and Efficiency: Look for a fire pump that offers high performance and efficiency. Consider the pump’s rated capacity, which indicates the maximum flow rate it can deliver. Additionally, check the pump’s efficiency rating to ensure it operates optimally and minimizes energy consumption.

Reliability and Durability: A good fire pump should be reliable and durable to withstand the demands of fire protection operations. Consider the quality and reputation of the manufacturer, as well as the pump’s construction materials. Look for features such as corrosion-resistant coatings, sturdy construction, and reliable seals and bearings.

Compliance with Standards: Ensure that the fire pump you choose complies with relevant industry standards and codes, such as the National Fire Protection Association (NFPA) standards. Compliance with these standards ensures that the pump meets essential safety and performance requirements.

Maintenance and Support: Consider the ease of maintenance and availability of support for the chosen fire pump. Look for pumps with accessible components, clear maintenance instructions, and readily available spare parts. Additionally, check if the manufacturer or supplier provides technical support and assistance.

Testing and Certification: Check if the fire pump has undergone rigorous testing and certification by reputable organizations. Look for certifications from recognized bodies that validate the pump’s performance, efficiency, and safety.

Budget and Cost Considerations: While it is essential to choose a reliable and efficient fire pump, consider your budget and cost constraints. Compare prices, warranties, and ongoing maintenance costs to find a balance between quality and affordability.

System Integration: Consider how the fire pump will integrate with your overall fire protection system. Ensure compatibility with other components, such as fire alarms, sprinklers, and control panels. Coordinate with system designers or consultants to ensure seamless integration.

Consult with Experts: If you are unsure about the specific requirements or complexities of selecting a fire pump, consult with fire protection experts, engineers, or consultants. They can provide valuable insights and recommendations based on your unique needs and circumstances.

Remember that selecting a good fire pump is a critical decision that requires careful consideration. By evaluating the factors mentioned above and seeking professional guidance, you can choose a fire pump that meets your requirements and ensures the safety of your property and occupants in the event of a fire.