Diesel electric fire pump set with automatic start after power failure

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.

The DJ fire pump equipment is composed of a diesel engine pump and a jockey pump. The diesel engine pump adopts an XA pump with large flow and high lift. The jockey pump adopts a CDL pump. This fire pump set can be used in fire hose and fire hose reel systems, fire sprinkler systems, fire water monitoring systems, fire alarm systems and fire hydrant systems.

Electric motor 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 water. The electric motor 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 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.

Fire pump test headers allow for the controlled flow of water during routine testing. They are used to verify the performance of the pump, pressure switches, and other components, providing a standardized method for testing without affecting the main fire protection system.

The fire pump is mainly used for water delivery in the fire protection system. As an indispensable tool for the fire protection system, the fire pump has the characteristics of simple structure and stable performance. Due to these advantages of high performance and low energy consumption, the safety and efficiency of the fire pump are far ahead of the pipeline tools of the same purpose.

The application of fire pumps is not only in fire protection systems, but a variety of fire pumps are gradually showing their superior strength in industrial production and urban construction. This includes the implementation and expansion of high-end technologies for industrial and urban water supply and drainage, and high-rise water supply under pressure.

Building occupants should receive training on the location and proper use of firefighting equipment, including fire pumps. Regular drills and educational sessions contribute to increased awareness and preparedness during a fire emergency.

1. Electric pump, can use multistage pump, material can be cast iron, stainless steel, and bronze impeller

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

Flow-1000GPM
Head-106psi
Power-100HP=75KW
EJ fire pump is composed of electric pump + jockey pump
Those pictures display OTS series electric motor pump. OTS double suction split-case centrifugal pump has a wide range of performance, with the ability for a variety of uses.

The diesel engine fire pump set has the characteristics of good starting performance, strong load capacity, compact and effective structure, convenient maintenance, simple and reliable use, etc. The generator set has maintenance functions such as speed limit, low oil level, repeated failed starts, high temperature, low oil level, and low battery voltage. At the same time, it can be connected with the customer’s automatic fire alarm system or the centralized control cabinet of fire-fighting facilities to establish a real-time monitoring function.

The ED fire pump set is composed of electric pump + diesel pump, equipped with a control cabinet, without a jockey pump. It is a small fire pump set, suitable for any fire emergency situation, not affected by the mains, and the control cabinet controls the pump. Start and stop, with the advantages of flexibility and small footprint.

EDJ series fire pump set consists of electric pump + diesel pump + jockey pump and all accessories.
The dual power fire pump pressure switch and control cabinet can automatically turn on/off the three pumps – the electric pump and the jockey pump work when there is electricity, and the diesel pump when the power is off.
Flow range: 50-5000 GPM
Pressure range: 4-14 bar
Power range: 4-325 KW

EEDJ fire pump set consists of two electric pumps + diesel pump + jockey pump, which is manufactured according to customer requirements. All fire pumps use ISW pumps. The advantages of this fire pump set are easy installation, high cost performance, and suitable for any fire fighting. In emergency situations, it is equipped with a diesel engine pump, which can run even when the power is cut off.

Discover the full safety performance of dual power fire pump systems combining electric and diesel drive. Ensure uninterrupted water supply, reliable pressure, intelligent control, and durable operation for high-rise buildings, industrial sites, airports, ports, and energy facilities.

The current use of fire pumps is still relatively important. As the name suggests, fire pumps are pumps used for fire protection. The fire pumps we use now are all imported from abroad. Its performance mainly includes three aspects, sealing, no leakage, and corrosion resistance. Because of the particularity of its use, its requirements are relatively strict in terms of material selection and production. Considering many aspects, the performance and technical conditions of the fire pump meet the requirements of the “Fire Pump Performance and Test Methods” standard.

Fire pump room design is vital for system functionality, accessibility, and safety. This article delves into the key considerations when designing a fire pump room, such as space requirements, ventilation, and fire suppression. It emphasizes the importance of a well-designed pump room to ensure optimal pump performance and personnel safety.

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.

Potential risks associated with diesel fire pumps include fuel spills, engine emissions, mechanical failures, and electrical hazards. These risks can be mitigated through proper risk assessment and mitigation strategies, such as implementing spill containment measures, ensuring proper ventilation in pump rooms, conducting regular equipment inspections and maintenance, and implementing safety protocols for fuel handling, storage, and disposal. Additionally, it’s essential to comply with relevant regulatory requirements and industry standards to minimize risks and ensure the safe operation of diesel fire pump systems.

In high-rise buildings, fire pumps and jockey pumps are critical components of the fire protection system, ensuring that water is delivered to the upper floors with sufficient pressure. Due to the height of these buildings, gravity significantly reduces water pressure as it travels upwards, making it essential for fire pumps to boost pressure to maintain effective firefighting capabilities. Jockey pumps maintain system pressure in between fire pump activations, compensating for minor leaks and ensuring the system is always primed. The design of these pumps in high-rise buildings often includes considerations for redundancy, with multiple pumps and backup power supplies to ensure continuous operation even during power outages or pump failures. This redundancy is vital in high-rise buildings, where a delay or failure in water delivery could have catastrophic consequences.

High-efficiency diesel engine-driven fire pump sets feature stable water supply, automated control, durable design, and multi-scenario adaptability, ensuring rapid response to fire demands at critical moments and safeguarding the fire safety of buildings and industrial facilities. Suitable for a variety of environments, including high-rise buildings, warehouses, factories, and remote areas.

120m3/h@70m fire fighting package set-ZJBetter
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.

Non-UL Flow：30-9000 GPM
Non-UL Head： 3-20 Bar (40-300 psi)
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.

A fire pump is designed to provide adequate water pressure to a sprinkler system during a fire emergency. It is usually powered by an electric motor or diesel engine and is capable of pumping water at a much higher pressure than a domestic water pump. A domestic water pump is designed to provide water pressure to a regular plumbing system for everyday use. It is usually powered by an electric motor and is capable of pumping water at a lower pressure than a fire pump.

The motor fire pump unit is powered by an electric motor to drive the fire pump and output pressure water for fire fighting. The pump unit is mainly composed of a motor, a water pump, a transmission device, a common base and an instrument table. The starter cabinet is installed near the pump unit for starting the motor.
The electric fire pump set has the advantages of quick start, reliable water diversion, stable operation, high degree of automation, wide range of pressure and flow, etc. It is an advanced and reliable fixed fire-fighting equipment.

High-efficiency vertical in-line fire pumps offer stable water pressure, fast start-up, and high durability. They are compact and easy to install, making them suitable for high-rise buildings, factories, and large public facilities, ensuring reliable and safe fire emergency water supply.

Minor repairs can often be made to fire pumps, but major issues may require replacement or extensive refurbishment. It’s important to consult with experts in fire pump maintenance for guidance.

The EJ (Electric pump + Jockey pump) 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.

·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

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.

Before starting the electric motor fire pump set, the inspection work is indispensable. Check the condition of the power supply and motor, whether the water volume of the reservoir is sufficient, and whether the water inlet and outlet are normal. The inspection is normal and then starts; after the fire pump is started, attention should be paid to the vibration and temperature rise. It is necessary to set the maintenance time period to ensure the stable performance of the fire pump. According to the needs of system operation control and maintenance management, the electrical control cabinet of the fire pump mainly has the functions of starting and stopping the pump, switching between the main and standby pumps, manual automatic switching, dual power switching, patrol inspection, Protection, feedback mechanical emergency start and other functions.