How long can a fire pump run during an emergency?

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 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 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

Yes, there are various types of nozzles available for firefighting pumps, each designed for specific purposes. For example, fog nozzles disperse water into a fine mist, which is useful for cooling and controlling fire, while solid stream nozzles deliver a concentrated stream of water for long-range firefighting. Choosing the appropriate nozzle can significantly impact the effectiveness of firefighting efforts.

Large EDJ fire pumps
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Fire pumps are designed to start promptly in case of an emergency. The time it takes to start depends on factors such as the type of pump (electric or diesel) and the specific system design. Regular testing helps ensure quick response times.

Flow:120GPM~1500GPM
Head :H＜150m
Speed:2950-3550RPM

Product Overview
Product Introduction of EDJ Fire Pump System
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, control box
3. Jockey pump, horizontal or vertical, capacity will be small, but head should be higher than electric and diesel engine pump
4. Control panel: Auto Control of electric pump, diesel engine pump and Jockey Pump with overload, over current protection。
5. Accessories: check valve, gate valve, pressure vessel, generally 0.6mpa, 1.0mpa, 1.6mpa, Pressure Gauge, Pressure Sensor, Common Pipe for Suction and Discharge, Flexible Joints and Flanges, Common Base plant

Diesel engine fire pump, as a fixed fire extinguishing equipment, has been widely used in fire diversion, especially in emergencies such as no power supply or abnormal power supply, it can also be equipped with other diesel engines as power machines according to the needs of users.

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 DJ Fire Pump Set is a combination system consisting of a diesel engine pump and a jockey pump, designed for fire safety in the construction and industrial sectors. This system utilizes the powerful power output of the diesel engine pump, ensuring reliable operation even in the event of a power outage.

·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 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.

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.

Multi stage pump refers to a pump with two or more impellers, which can absorb and press water in stages and stages, so as to lift the water to a very high position. The lift can increase or decrease the number of stages of pump impellers according to needs; When the single-stage pump head needs to be equipped with two-stage motors, the multi-stage pump can be equipped with four-stage motors by increasing the number of impellers, which can improve the service life of the pump and reduce the noise of the unit. When the actual required lift of the pump is less than 125 meters, the selection of a single-stage pump or a multi-stage pump can be comprehensively considered according to the area of the pump room, the pump price (the price of a multi-stage pump is generally higher than that of a single-stage pump) and other factors.

Instructions for use of EJ fire pump set:
Altitude: ¡Ü1000m;
Ambient temperature: +5¡æ¡«+40¡æ;
Relative humidity: <= 90%. Scope of application: Equipment suitable for fire protection occasions such as warehouses, docks, airports, petrochemicals, power plants, liquefied gas, textiles, ships, oil tankers, etc.

The function of the diesel fire pump is very powerful. We can set the control time during use, for example: preheating in advance, pre-lubrication or timing start. The use of high technology has made some complicated and time-consuming things easier. The preheating setting in advance has greatly reduced the preparation time for rescue, allowing firefighters to rescue at the first time. In the face of disasters, time is money, time It is life.

Diesel engine fire pumps are suitable for use in fire water supply environments with high head and high flow rate or as backup fire water supply pumps. The reason is that the diesel engine has strong power and can be used with large flow fire deep well pumps, and the diesel engine fire pumps have the characteristics of self-starting when power is off. Emergency water supply is available, so diesel engine fire pumps are favored.

When the water supply doesn’t have enough pressure, a fire pump can be an excellent solution to the problem, as long as the pump is sized correctly. The fire pump is selected by five factors: liquid delivery volume, device lift, liquid properties, pipeline layout and operating conditions.

1. Turn off the power supply of the fire pump.

2. Close the main valve of the main pump and open the main valve of the standby pump.

3. Open the valve of the bypass line and the water supply line of the standby pump.

4. Turn on the power supply of the standby pump.

5. Check the operation status of the standby pump.

6. Close the valve of the bypass line and the water supply line of the main pump.

7. Open the main valve of the main pump.

8. Check the operation status of the main pump.

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). According to the needs of users, it can also be equipped with other diesel engines as power engines.

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.

All accessories of EJ small fire complete water supply equipment are assembled according to the standard (NFPA20). Its configuration depends on the customer’s needs, or the number of pumps and the type of electric pump. EJ small fire pump group consists of electric pump and jockey pump. EJ small fire-fighting complete set of water supply equipment has reasonable layout, firm installation, reliable connection, compact structure, neatness and convenient maintenance.

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.

Electric fire pumps are pumps used to pump clean water and liquids with physical and chemical properties similar to water. They are mainly used in factories, mines, urban water supply, air conditioning systems, fire protection systems and agricultural irrigation. For pumps of the same specification, changing the outer diameter of the impeller can have different performance. The pump has simple structure, reliable performance, small volume, high suction lift, low energy consumption and easy maintenance.

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 DJ Fire Pump Set is a combination system consisting of a diesel engine pump and a jockey pump, designed for fire safety in the construction and industrial sectors. This system utilizes the powerful power output of the diesel engine pump, ensuring reliable operation even in the event of a power outage.

Because of the width required by our customer, this fire pump set is designed in in-line. Capacity and total head are 34m³/h@8bar.

·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

ISO series centrifugal pump is a single-stage single-suction centrifugal pump developed by China Better Technology Co., Ltd. with reference to international similar products using modern fluid mechanics to meet the international standard ISO9908 secondary energy efficiency standard.
This product combines the strengths of similar products in China and abroad and is designed with excellent hydraulic models, therefore, its excellent hydraulic performance and structural features ensure that the user can effectively reduce the operating cost of the pump in various applications.

1. Better is a professional fire pump manufacturer with 18 years of industry experience

2. Professional sales team and R&D team, strong technology, self-produced control system

3. The motor is self-produced, which can produce 50/60Hz

Fire pump components:
1. Diesel pump: the flow rate is the same as that of the electric pump. It connects pump sets with highly elastic couplings or universal joints.
2. Pipeline supplementary pressure 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.