Common Control Methods for Diesel Engine Fire Pumps

Problem one lower water or no water
1, electric pump reversal will lead to the pump doesn’t produce water.
2, the pump can’t normal water into the same can’t be water, check whether the water bay or check stopcock is blocked or stuck, pumping pipe if there’s a leak will also affect the water into the water.
3, the pump internal corridor of the wear and tear or connection out, check the pump and motor coupling wear and tear, loose and impeller is worn.

Problem two ：
1 、 Check the power force as described over, including connectors, switches, fuses,etc.
2. Check whether the impeller in the pump is jammed by foreign objects
3. A burnt motor will also affect the launch of the pump.

Problem three the water affair is big for a while and small for a while
1. still, the lack of depth down the well may beget this problem, If the pump is a submersible pump.
2. The inflow rate of the pump is too high and needs to be replaced with a suitable pump.

A fire pump is required when the available pressure from the water system is insufficient to supply adequate pressure to all of the sprinkler heads in the structure at the required flow. The required flow is based on heads activating in a given area, which is determined by the hazard to be protected. Fire pumps are more commonly needed in taller buildings, but can also occur in shorter buildings in hilly locations.

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 unitspressure tanks,pipesvalves and accessories measurement and control instruments,control cabinetsoutdoor rain coveretc.

An FDC is an external connection point that allows the fire department to supplement the water supply to the fire protection system using their hoses and equipment if needed.

Flow: 5-120L/s

Head:0.2-1.6MPa

Caliber: 50-250mm

Power: 3-220kW

Speed: 1500-2600r/min

Working Pressure: 1.6MPa

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.

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.

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℃.

The fire pump unit is composed of a fire water pump, a double shaft extension motor and a diesel engine. One end of the output shaft of the double shaft extension motor is connected to the input shaft of the fire water pump, and the other end of the output shaft of the double shaft extension motor is connected to a One end of the clutch is connected, the other end of the clutch is connected with the output shaft of the diesel engine, and the fire water pump, the double-shaft extension motor, the clutch and the diesel engine are all fixed on the base. The double-shaft extension motor, the clutch and the diesel engine are respectively electrically connected with a control circuit through an action drive circuit. With dual-power fire pumps, there is no need to configure a second fire pump, which reduces floor space and saves manufacturing costs.

Fire pump control systems are critical for ensuring the reliable operation of fire pumps. This article delves into the components and functionalities of fire pump control systems, including starting mechanisms, alarms, and interface with fire alarm systems. It emphasizes the role of these systems in enhancing safety and reliability during fire emergencies.

1. Inspect and test the fire pump, piping, valves, and relief valves annually for proper operation and water flow.

2. Make sure the fire pump is in good working condition and that all safety systems are in place and operational.

3. Check the fire pump’s pressure gauge and make sure it’s properly calibrated.

4. Inspect the motor, couplings, and belts for proper alignment and condition.

5. Clean the fire pump’s suction and discharge strainers regularly.

6. Ensure that the fire pump is properly lubricated and that all bearings and seals are in good condition.

7. Test the fire pump with a certified flow test annually.

8. Inspect the fire pump’s control panel and make sure it’s in proper working order.

9. Test the fire pump’s jockey pump and make sure it is operational.

10. Check all electrical connections and wiring for proper operation.

This equipment is an EEJ fire pump set customized by a Greek customer with a frequency of 50Hz. The electric pump adopts an XA pump.This pump combines the advantages of similar products in China and abroad, and is designed with excellent hydraulic model.

The dual power fire pump is composed of a fire water pump, a double shaft extension motor and a diesel engine. One end of the output shaft of the double shaft extension motor is connected to the input shaft of the fire pump, and the other end of the output shaft of the double shaft extension motor is One end of a clutch is connected, and the other end of the clutch is connected with the output shaft of the diesel engine. The fire water pump, the double-shaft extension motor, the clutch and the diesel engine are all fixed on the base. The double shaft extension motor, the clutch and the diesel engine are respectively electrically connected with a control circuit through an action driving circuit. With dual-power fire pumps, there is no need to configure a second fire pump, which reduces floor space and saves manufacturing costs.

There are many types of fire pumps to deal with more fire water environments. Fire pumps are used in buildings, factories, storage and other places, and the performance requirements and quality requirements are different. The commonly used types of fire pumps are vertical electric fire pumps, diesel fire pumps, horizontal single-stage fire pumps, vertical single-stage/multiple Level fire pumps and horizontal double-suction fire pumps, etc., the specific head, flow and power are selected according to different projects.

Electric fire pumps can be located inside the building. Office buildings and apartments are often equipped with electric fire pumps. In addition, upper floors sometimes install an additional electric fire pump above ground or basement to increase water pressure.

The fire pump refers to a clean water pump used for fire water supply, and a single pump that handles medium temperature below 80 degrees and is not corrosive. The pump set is the joint operation of multiple fire pumps to ensure the quantity and stability of the water supply. The electric motor fire pump group adopts multiple fire pumps powered by electric motors. The general fire water supply environment is equipped with one electric and one diesel fire pump as the reserve water pump to ensure sufficient emergency water consumption. The main components of the electric motor fire pump group are the motor and the pump body. The subdivision of the pump body is the pump casing, the impeller, the pump shaft, the bearing, the coupling, the sealing form, the lifting pipe, etc. The specific fire pump model is determined according to the environment and performance requirements. According to the material quotation required by the customer, accurate selection is beneficial to on-site use and reduces failure problems.

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.

Fire pumps typically draw water from a reliable source such as a dedicated water tank, municipal water supply, or open water source. It’s essential to ensure that the water supply is sufficient and free from contaminants.

EJ Fire pump set Fire pump set consists of one main pump coupled to electric motor, one stand by pump coupled to diesel engine, jockey pump, pressure vessel, controller for manual or automatic operation of system and standard accessories mounted on base frame.This fire pump set can be used for fire hose and fire hose reel system, fire sprinkler system, fire water monitor system, fire alarm system and fire hydrant system.

1. Ability to provide a steady and reliable flow of water: Fire pumps are designed to provide a steady and reliable flow of water to the fire suppression system. This ensures that the fire is extinguished quickly and without any damage to the property.

2. High-Pressure Output: Fire pumps can provide a high-pressure output to ensure that the water is able to reach further distances and at higher pressures than would be achievable by a standard water system. This is important in controlling and extinguishing fires, as it allows the water to reach all areas of the fire.

3. Emergency Operation: Fire pumps are designed to be able to operate in the event of a power outage. This ensures that the fire suppression system can still be operational in the event of a power failure. This is especially important in commercial buildings and other areas where power outages can occur.

4. Automatic Activation: Fire pumps are designed to automatically activate in the event of a fire. This ensures that the fire suppression system can be activated quickly and without any manual intervention. This is especially important in the event of a large fire, as it ensures that the system is already in operation before the fire department arrives.

5. Low Maintenance: Fire pumps are designed to be low maintenance, requiring only regular inspections and maintenance to ensure that they are working correctly. This ensures that the fire suppression system is always ready for use and that it can be relied upon in the event of a fire.

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. The jockey pump maintains a constant water pressure, optimizing the performance of the fire suppression system. The DJ Fire Pump Set offers a reliable and efficient solution for prompt response to fire incidents, making it an essential component for protecting property and ensuring occupant safety.

This group of fire pumps consists of two electric pumps + one jockey pump, and the motors are connected to multistage pumps.

A single-stage fire pump has only one impeller, and a multistage fire pump can have two or more impellers, which can achieve a larger lift at the same flow rate. Generally, it can be used as an industrial pump, a domestic pump and a fire pump.

Fire pump is a general term for special pumps involved in water supply of various fire systems. The fire pump model is XBD. Fire pumps must be tested and approved by relevant national units before they can be used in various fire protection systems in buildings, such as: fire hydrant system, sprinkler fire extinguishing system, foam fire extinguishing system, large space high-altitude water cannon, water mist fire extinguishing system, rain shower fire extinguishing systems, water curtains, etc.

The ZWX box-type non-negative pressure water supply equipment is a pressurized water system designed to address inadequate municipal water pressure in critical settings such as hospitals and hotels, where water cannot be shut off. It also serves as an ideal solution for meeting the domestic water needs of high-rise buildings and, specifically, fulfilling the water requirements of schools. This equipment ensures a continuous water supply, even during maintenance or emergency situations, effectively resolving the challenges posed by low water pressure. With its efficient pressurized water supply and advanced control technology, the ZWX equipment offers stable water pressure and flow rates, catering to the diverse demands of different settings. Furthermore, its intelligent operation and energy optimization contribute to reduced energy consumption.

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%.

1.Flow: 50-5000GPM
2.Head: 3-20Bar
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.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.

1.Flow: 50-5000GPM
2.Head: 3-20Bar
3.Speed: 740-2900r/min
4.Power: Electric pump: 1.5-710 kw, Jockey pump: 0.55-160kw
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.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.

The so-called self-priming pump does not require irrigation before starting, and after a short period of operation, the water can be sucked up by the function of the pump itself and put into normal operation.

Self-priming pumps are divided into the following categories according to their working principles:

(1) Gas-liquid mixing type (including internal mixing type and external mixing type);

(2) Water ring wheel type;

(3) Jet type (including liquid jet and

The double-suction fire pump has the characteristics of high lift and large flow, and is widely used in fire fighting. The impeller of this pump type is actually a combination of two back-to-back impellers, and the water flow from the impellers merges into a volute. The double-suction pump has the following characteristics: it is equivalent to two single-suction impellers of the same diameter working at the same time, and the flow rate can be doubled under the same outer diameter of the impeller; the pump casing is horizontally opened, which is convenient for inspection and maintenance. The inlet and outlet of the suction pump are in the same direction and perpendicular to the pump shaft, which is conducive to the arrangement and installation of the pump and the inlet and outlet pipes; the impeller structure of the double suction pump is symmetrical, there is no axial force, and the operation is relatively stable.