Versatile and Efficient: ED Dual-Power Fire Pump Technology

·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

Air in a centrifugal pump usually occurs because of a suction issue. Air can be introduced into the pump either because of a piping issue, such as low water level, or an internal issue, such as incorrect impeller clearance. To prevent air from entering the inlet pipe and pump body, the piping should be checked to ensure it is properly sealed and the pump should be regularly inspected to check impeller clearance.

Key Factors to Consider:
NPSHa vs. NPSHr: The Net Positive Suction Head Available (NPSHa) must always exceed the Net Positive Suction Head Required (NPSHr) to prevent cavitation.
Elevation & Water Source: Pumps drawing from underground tanks or reservoirs need to account for elevation changes and friction losses.
Pipe Sizing & Layout: Use properly sized pipes and minimize bends to reduce suction losses.
Compliance with NFPA 20: Follow recommended practices for suction piping to ensure smooth operation.

Diesel engine fire pump sets are mainly suitable for fire water supply systems in petrochemical, natural gas, power generation, cotton and linen textiles, warehouses, airports, docks, high-rise buildings and other industries. It can also be used in occasions such as water ships, offshore oil tankers and fire fighting ships. The unit adopts imported diesel engine and fire pump. It has the characteristics of quick start, reliable water diversion, reasonable power reserve, stable operation, wide range of pressure and flow, etc. It is an advanced and reliable fire-fighting equipment.

Fire pump is one of the fire-fighting equipment, its function is mainly used to transport water or other fire-extinguishing liquid for fire-fighting. Pumping water with equipment such as fire pumps has a very high water delivery efficiency. There are many types of fire pumps, and the air pumping methods of different fire pumps are also different. Sprinklers, fire hydrants, and water cannons and window sprays commonly used in business have the same pump-starting principle, but the fire-fighting linkage principle is different.

The basis for the selection of fire pumps should be based on the process flow, water supply and drainage requirements, and be considered from five aspects, namely, liquid delivery volume, device lift, liquid properties, pipeline layout, and operating conditions. Fire pumps are mainly divided into vertical and horizontal types. The flow rate of the conveying liquid is one of the important performance data for pump selection. It is directly related to the production capacity of the entire device. The working conditions of the fire pump: flow rate: 2～1400m3/h, Head: 5～130m, maximum working pressure of the system: ≤1.6MPa, working temperature: -15℃～+80℃.

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

The fire pump is actually a pump that needs to be used in fire protection. According to different classification methods, it can be divided into different types of pumps. With its characteristics of full sealing, no leakage and corrosion resistance, it is widely used in environmental protection, water treatment, fire protection and other departments to pump various liquids. The pump types of the system are similar, but the head and flow are different. The selection basis of the fire pump should be considered from five aspects according to the technological process and water supply and drainage requirements. Fire truck fire pumps are used in fire protection, water treatment, environmental protection and other departments to pump various liquids.

Diesel engine fire pump has high efficiency, long operating life and high reliability. It can be used in independent fire water supply systems, and can be used in fire protection and living shared water supply systems. It can also be used in construction, municipal, industrial and mining, water supply and drainage, ships, field operations and other occasions .

1. Manual Operation: This method involves manually operating the fire pump by an operator who is trained to handle it.

2. Automatic Operation: This method uses an automatic sensing and control system to start and stop the fire pump when needed.

3. Pressure Control: This method uses a pressure switch to monitor the pressure in the system and activate the fire pump when necessary.

4. Flow Control: This method uses a flow switch to monitor the flow in the system and activate the fire pump when necessary.

5. Variable Frequency Drives (VFDs): This method uses a VFD to provide precise control over the speed and torque of the fire pump. This helps to ensure that the fire pump is operating optimally.

6. Remote Monitoring: This method uses a remote monitoring system to provide real-time data on the condition of the fire pump and to allow for remote operation if necessary.

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.

Electric motor fire pumps are used in various water environments, not only for ordinary water supply but also as a good helper for fire water. The electric motor fire pump is manufactured with good structure and technology, with a wide range of performance, simple operation and long-term use. The electric motor fire pump is aimed at various fire water environments, so the selection should also be based on the actual demand environment, performance parameters, etc.

Diesel engine fire pumps are relatively common in life, and their performance requirements are relatively high. In ordinary use, more attention should be paid to maintenance, so as to prolong the service life of the pump. Because diesel fire pumps are not omnipotent, there will be some problems in daily use, so when choosing equipment, we must pay attention to whether the quality of the equipment meets the national standards. As fire equipment, all kinds of equipment must be To ensure performance, avoid affecting use in disaster situations and delaying rescue.

Fire pumps are more expensive than ordinary water pumps because they must meet specific fire protection standards and are built to handle high temperature and pressure water. They also have additional features, such as larger motors, to rapidly provide the necessary flow rate to meet fire protection requirements.

The EE fire pump is composed of two electric pumps. According to the customer’s requirements, there is no jockey pump and control cabinet. It is a small fire pump set with competitive price. The fire pump set is being tested at the Better factory. , make sure the product is free of any problems.

UL Flow：50-3000 GPM
UL Head： 5-20 Bar (72.5-290 psi)

The EDJ Fire Pump Set includes diesel engine pumps, electric pumps and jockey pumps.
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.

Prior to installation, fire sprinkler systems are hydraulically calculated to ensure adequate water flow and that the system can reliably suppress a fire until fire crews arrive. When it is determined that there is insufficient flow from a municipal supply for the system to function properly, a fire pump is installed. The fire pump activates when the sprinkler system pressure falls below a certain threshold as a result of sprinkler head operation. To maintain the required operating pressure of the sprinkler system, the fire pump draws additional water from the municipal water supply or on-site storage tanks. Due to the size of piping systems and pressure loss, fire pumps are frequently required in high rise construction and large area buildings.

Fire pump refers to a clean water pump used for fire water supply, and a single water pump with a treatment medium temperature lower than 80 degrees and non-corrosive. The pump unit is a joint operation of multiple fire pumps to ensure the quantity and stability of water supply. The electric motor fire pump set adopts multiple fire water pumps powered by electric motors.

Diesel and electric fire pumps are the two primary types of fire pumps used in fire protection systems, each with its own advantages and considerations. Diesel fire pumps are powered by internal combustion engines and are typically used in locations where a reliable electric power supply is not available or where redundancy is needed to ensure continuous operation during a power outage. Diesel pumps are known for their reliability and ability to operate independently of the electric grid, but they require regular maintenance of the engine and fuel system, including fuel storage and periodic testing.

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

DJ fire pump set 30gpm at site
diesel engine fire pump 30gpm, 3bar with 10gpm, 4bar with controller and accessories.

DJ fire pump set consist of diesel pump, jockey pump and control panel. The diesel engine is fixed on the base with anti-vibration rubber pads and the pump is directly coupled to a diesel engine through flexible coupling, According to the power output of the engine the electrical system, the diesel engine can be Cummins,Deutz,Perkins and Other China brand engine(Shangchai,Yuchai,ec.) and it consists of alternator, started motor, fuel system, lubricating system, exhaust system, etc.

CDL stainless steel vertical multistage pump is especially suitable for boiler feed water, and can also be widely used in pressure vessel water supply, hot water circulation, high-rise building water supply, farmland irrigation, fire pressurization, hydraulic flushing, food, brewing, medicine, chemical industry, aquaculture , environmental protection, chemical process and machine tool supporting industries, as the power equipment for water supply and drainage.

·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 pumps are usually used as a backup facility, and will only start automatically when the electric water pump fails or the power is cut off when the fire signal comes. When equipped with an ultra-low pressure pump starting device, the matching electric pump control cabinet should also be equipped with an ultra-low pressure pump starting device, and the lower limit of pump starting should have a certain pressure difference. Of course, it is also possible to design a control system that is more suitable for customer needs according to customer requirements.

Compare the advantages of fire pump package sets versus buying individual pumps. Package sets are often more convenient, as they come with pre-configured components like controllers, tanks, and piping, reducing installation time and simplifying maintenance. Highlight the flexibility and potential cost savings of individual pumps for customized applications, and help readers decide which option best fits their facility’s needs.

Flow: 30-9000GPM
Head:3-20Bar
Caliber: 25-800mm
Power: Diesel pump / Electric pump: 1.5-710 kw, Jockey pump: 0.55-160kw
Speed: 740-2900r/min
Material:SS304, Bronze

1. Application Scope
Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service.
2. Using Instruction
Altitude ≤ 1000m;
Ambient temperature: +5 °C ~ +40 °C;
Relative humidity: <= 90%.