Diesel engine fire pump can form automatic fire water supply system with electric pump group and jockey pressure pump

Provide a comprehensive guide on fire pump regulations, such as NFPA 20 (Standard for the Installation of Stationary Pumps for Fire Protection), local building codes, and UL/FM certification requirements. Discuss how these regulations impact the design, installation, and maintenance of fire pumps, why they’re essential for safety, and how to ensure your fire protection system meets all necessary legal and insurance requirements.

EDJ fire pump small flow capacity: 50gpm, pressure: 5bar

·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

For temporary structures and events, such as construction sites, outdoor festivals, or temporary exhibition halls, fire pumps and jockey pumps are vital for providing an adaptable and reliable fire protection solution. Portable fire pumps can be quickly deployed to deliver water to temporary sprinkler systems or standpipes, ensuring fire safety even in temporary settings. Jockey pumps help maintain pressure in these temporary systems, ensuring that they are always ready for immediate activation without requiring constant manual intervention. Given the temporary nature of these structures, fire pumps must be easy to transport, install, and operate, while also being durable enough to withstand outdoor conditions and frequent relocation. This flexibility makes them indispensable for ensuring fire safety in environments where traditional fire protection infrastructure may not be available.

1.Flow：30-9000 GPM
2.Head： 3-20 Bar (40-300 psi)
3.Power：Diesel & Electric Pump:1.5-710kw Jockey Pump:0.55-160kw
4.Speed：740-2900 r/min
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.

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.

High-lift diesel fire pumps are renowned for their powerful power, independent operation, and high-pressure water supply, making them an ideal choice for fire protection systems in industrial plants, high-rise buildings, and petrochemical bases. They offer advantages such as automatic control, energy conservation and environmental protection, and high-temperature and corrosion resistance, ensuring stable operation during power outages and extreme environments, providing continuous and efficient fire water support.

While fire pumps are designed to run for extended periods during emergencies, continuous operation under normal conditions is not recommended. Prolonged operation can lead to wear and tear, and regular testing is preferred over continuous running.

The diesel engine fire pump has the characteristics of good starting performance, serious load operation, compact structure, time-saving and labor-saving maintenance, simple application, and high level of automatic control technology. It is a security monitoring device with reliable performance. The full name of the diesel engine fire pump we usually say is the engineering diesel fire pump set, which can operate at an ambient temperature of -25~55°C, and can be automatically charged, automatically started, and has the functions of automatic alarm and automatic preheating. It is very reliable.

Electric fire pump sets offer energy-saving, high-efficiency, zero-emission, and smart control features, making them the ideal fire protection solution for green buildings. This article explores their key benefits in sustainability, reliability, installation, and maintenance, supporting carbon reduction goals

·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 small EJ fire pump set is suitable for low buildings. The fire pump set consists of an ISW electric pump and a CDL jockey pump. The ISW pump is easy to install and maintain, no need to disassemble or move the piping system, just lift the pump to connect the flat nut to take out all the rotors part. The impeller is directly mounted on the main shaft of the motor, with a short axial dimension and a compact structure, which can calibrate the rounding of the pump to effectively generate radial and axial loads, thereby ensuring smooth operation, vibration and low noise of the pump.

High-performance diesel fire pumps feature rapid start-up, stable water supply, and powerful output, making them suitable for industrial, commercial, and emergency fire protection systems, ensuring reliable fire protection in critical moments.

EDJ fire pump set consists of main electric pump (motor driven), standby diesel pump (diesel engine driven) and jockey pump. The pump is assembled from discharge and suction pipes and a control panel. The fire pump system can be customized for different uses such as high-rise buildings, warehouses, facilities, hospitals, supermarkets, shopping malls, villas, apartments, etc.

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.

Diesel pumps can be combined with electric pumps, jockey pumps, etc. to form an automatic water fire-fighting water supply system, and can be linked with the fire control center.

When the pump set receives the starting command, if the mains power is cut off, the automatic control cabinet of the diesel engine will immediately send a start signal to the starting motor of the pump set to start the motor to start the diesel engine at idle speed, and then gradually adjust the throttle to accelerate the diesel engine to the rated speed . The control system will automatically monitor the operation of the diesel engine, such as the oil pressure, oil temperature, speed of the diesel engine, outlet pressure of the water pump, etc., and determine whether the diesel engine starts normally through automatic monitoring. If the start fails, the control system will send a restart signal, and if the three starts fail, the automatic control system will send a failure alarm. When the pump set receives a signal that the pressure of the pipeline network is restored or the mains power is restored to normal, the pump set will quickly slow down and stop automatically after monitoring the idle position for a period of time.

The fire pumps produced by our company are suitable for fire protection occasions such as warehouses, docks, airports, petrochemicals, power plants, liquefied gas, textiles, ships, oil tankers and so on.

Instructions for use:
Altitude: ≤1000m;
Ambient temperature: +5℃～+40℃;
Relative humidity: <= 90%.

The integrated electric fire pump system delivers efficient, energy-saving, and intelligent water supply performance. It integrates the motor, control cabinet, and pump body into a single unit, offering easy installation and stable operation. Suitable for fire protection water supply applications in high-rise buildings, factories, commercial centers, and similar facilities, it ensures rapid water delivery and reliable system operation during fire emergencies.

Fire pumps are mainly used for pressurized water delivery in firefighting system pipelines, and can also be used in industrial and urban water supply and drainage, high-rise building depressurized water delivery, long-distance water delivery, heating, bathrooms, boiler cold and warm water circulation pressurized air conditioning refrigeration system water delivery and equipment matching, etc.

The equipment is designed to have one duty and one standby function. The main electric pump runs normally, and the standby diesel pump starts automatically after the main pump fault . The Jocky pump will start and stop based on the pipe pressure, Control panel site start.

Explain the unique advantages of UL-listed fire pumps, including verified performance, enhanced safety through rigorous testing, and compliance with international standards, which is essential for securing building permits and insurance. Outline how UL-listed pumps often offer greater reliability during emergencies and ensure easier maintenance and support, making them ideal for facilities requiring dependable fire protection.

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.

Containerized fire pump system which consist of electric fire pump, diesel engine fire pump and jockey pump, with booster pump system

Fire pumps can be powered by various sources, including electricity, diesel engines, and, in some cases, natural gas. The selection of a power source depends on factors such as reliability, availability, and the specific requirements of the facility.

Electric fire pumps are commonly used in urban areas with a stable power supply. They are efficient and can start automatically in response to a fire alarm signal. In contrast, diesel-powered fire pumps are reliable in areas with inconsistent power availability, as they can function independently. The choice of power source should align with the facility’s operational conditions and the need for uninterrupted fire protection.

50gpm8bar ED fire pump set

two sets 50gpm 8BAR EDJ fire pump after finish product

Horizontal fire pump has significant advantages such as high efficiency, low operating noise, good cavitation resistance, reasonable structure and long service life. , long-distance water supply, heating, bathroom, boiler cold and warm water circulation pressurization, air conditioning refrigeration system water supply and equipment matching and other occasions.

The fire pump can be installed in multiple ways according to the on-site use conditions. And depending on the flow and head requirements, the required flow and head are increased in parallel and series. The bearing adopts low-noise closed bearing, which has been injected with grease before leaving the factory, which can ensure continuous operation for more than two years, and the components have high concentricity. The pump impeller has good performance. Dynamic balance, no vibration in operation, and improved use environment. The pump shaft seal is a mechanical seal, which solves the serious leakage of conventional centrifugal pump packing, increases the service life, and ensures that the operating site is clean and tidy.

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.

A typical firefighting pump system consists of the pump itself, intake and discharge hoses, nozzles, strainers or filters to prevent debris from entering the pump, and sometimes additional accessories like foam injection systems for enhanced fire suppression capabilities.

Our company’s fire pump equipment is widely used in state agencies, various residences, pressurized pump stations, hotels, schools, hospitals, etc. due to its outstanding features such as environmental protection, energy saving, and safety.