Main purpose of fire pump

answer:
1. The raceways of the inner and outer rings are peeled off, cracked or severely worn.
2. The rolling body is out of round or the surface is peeled off, with cracks.
3. The cage is seriously deformed or worn, and the rolling elements cannot be fixed.
4. There is vibration or noise when turning, and there is reverse reversal or braking when stopping.
5. The fit clearance of the bearing exceeds the maximum value of the specified clearance.

Fire pumps should be tested on a regular basis according to national and local regulations. Common testing frequencies are monthly, quarterly, annually, and five-yearly, with different tests conducted at each interval.

·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

0TS series double suction horizontal split case pump is a new series designed based on improvement and innovantion of our company’s traditional products;S、 SH、 SA series, provide a wider range of hydraulic coverage and wide variety of application.
FEATURES Split case design permits easy disassembly, that is, inspection issimplified, it is not necessary to disturb pump alignment and suction&dscharge piping when parts replacement is necessary.
Double suction with advanced designof suction perfromance ensures high suction lift even with large capacity.

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 small DJ fire pump equipment is suitable for small public places or fire emergency use. The small fire pump occupies a small area and is easy to maintain. The pump set is composed of diesel engine pump + jockey pump, which is widely used and is not affected by the mains.

Control Panel: The control panel houses electrical controls and monitoring devices for the fire pump. It typically includes components such as motor starters, switches, gauges, and alarms. The control panel allows for manual or automatic operation of the fire pump and provides critical information about pump performance and status.

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

1. When the pipeline fire pump noise occurs, the most likely fault is the imbalance of the fire pump rotor. Since the water output of the fire pump mainly depends on the high-speed rotation of the rotor, when the rotor is unbalanced for some reason, it will cause the fire pump to deviate from the original rotation track during the rotation process, resulting in the fire pump appearing in the pipeline. When judging the failure of the rotor, it is mainly to replace the rotor of the pump or make a balance hole on the rotor blade of the pump to find out the balance difference.

2. The production noise of the fire pump pipeline has a certain effect. For example, forcing a small flow of a pipe “fire pump” to increase power to increase the original flow will create vibrations in the fire pump. Therefore, whether you use a pipeline fire pump or other types of water pumps, you should follow the water pump use standards to prevent the water pump from making noise, which will affect the service life of the water pump. The solution is to use the pump according to the instructions. If the efficiency of use is affected, it is recommended to replace the appropriate pipeline “fire pump” for use.

3. The installation did not meet the standards, resulting in abnormal noise from the pipeline fire pump. Fire pumps and fire hydrant pumps vibrate at a high frequency during operation, so they must be fixed during installation. If the bolt between the pump body and the base or between the base and the base is loose when installing the pipe fire pump, the transmission shaft between the pump body and the motor of the pipe pump will be bent. It lowered the concentricity and caused an imbalance in the fire pump rotor. This is one of the noise phenomena of fire pumps. In order to improve this phenomenon, the pump shaft of the fire pump needs to be balanced and then reinstalled. Finally, the base of the pump was reinforced.

4. Blockage of the impeller passage can also cause fire pump noise. When the internal flow channel of the fire pump is blocked by foreign matter, it will cause uneven resistance of the fire pump impeller and vibrate the fire pump. Therefore, it is necessary to regularly disassemble and maintain the fire pump to prevent foreign matter from blocking the pipeline.

5. The bearing of the fire pump is damaged. Bearing damage generally does not occur on the main body of an in-line fire pump. If there is a problem with the quality of the pump, or because some hard objects enter the pump body of the tube pump, the bearing is damaged, and the rotor is unstable at first. Causes noise from pipeline fire pumps.

6. Finally, cavitation, cavitation occurs in any type of pump, but some are obviously not noticeable. If cavitation occurs, consider raising the fire pump or increasing the pressure in the piping. If the cavitation phenomenon cannot be changed, the fire pump model needs to be redesigned and replaced.

EDJ fire pump set is composed of electric pump + diesel engine pump + jockey pump. The fire pump set has the characteristics of high efficiency and energy saving, reliable quality, strong overload capacity, compact structure, convenient maintenance and high degree of automation. Suitable for any emergency firefighting occasion.

The outdoor fire pump set is designed to enhance fire safety in various applications. From powering fire hydrants and stabilizing sprinkler systems to safeguarding residential areas, industrial buildings, and high-risk environments, the Outdoor Fire Pump Set delivers optimal performance and unmatched reliability. Elevate your fire safety standards with this powerful solution and gain peace of mind knowing that your property and lives are protected. Choose the Outdoor Fire Pump Set and experience the ultimate fire protection solution.

This is a set of 250gpm @ 8bar fire pump sets. We manufacture in strict accordance with customer requirements. All products will be tested before leaving the factory to ensure that there are no problems. The design meets the national standard of general packaging, meets customer needs, and standard handling and transportation.

Single-stage fire pumps have only one impeller, and multistage fire pumps can have two or more impellers. Because the pump core in them is different, the structure is different. The impeller of the multi-stage pump is more than that of the single-stage pump, which can achieve a larger head at the same flow rate. The multi-stage pump is the sum of the single-stage pumps, and the head and outlet pressure can be made very high.

With the continuous development of society, people have higher requirements for the quality of life, and the safety of diesel engine fire pumps is more important. All places need to be equipped with fire-fighting facilities, and fire pumps are water intake equipment for fire-fighting facilities. The fire pumps we commonly use are electric fire pumps and diesel engine fire pumps. The difference between them is that electric fire pumps need power system supply. In case of power failure, the diesel engine fire pump can be started at any time to make up for the original position of the electric fire pump.

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.

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.

The video displays detailed analysis of fire pump set test. Fire pump sets manufactured by our factory are tested before delivery.

·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

·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

1.Flow：30-9000 GPM
2.Head： 3-20 Bar
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.

EDJ fire pump after packaged
250gpm 10bar EDJ fore pump set

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.

DJ (diesel pump + jockey pump) Fire Pump Set
DJ Fire Pump Set The fire pump set consists of a pump connected to the diesel engine, pressure jockey pump, pressure vessel, controller for manual or automatic operation of the system and standard accessories mounted on the base. The fire pump system can be customized for different uses, such as high-rise buildings, facilities, hospitals, supermarkets, shopping malls, villas, apartments, etc.

1. The performance of the fire pump should meet the flow and pressure requirements of the fire water supply system.
2. The power of the driver equipped with the fire pump should meet the requirements of the power required for operation at any point on the performance curve of the selected pump’s flow and lift.
3. When a motor-driven fire pump is used, a dry-installed fire pump with the motor should be selected.
4. The fire pump should be installed dry, and the pump should be placed outside the pool, and the submersible pump cannot be directly placed in the water for water absorption.

This equipment is a customized EEJ fire pump set which can meet 500GPM@80m. The duty pump and standby pump are XA series pump.

EDJ Fire pump set consists of a main electric pump(driven by electric motor),standby diesel pump(driven by diesel engine), and a jockey pump.Pumps are assembled with discharge pipe and suction pipe as well as ControlPanel.And this fire pump system can be customized for different purposes such as high rise buildings, warehouses,facilties,hospitals,supermarkets, shopping malls, vllas,apartments,etc.

One way of choosing a diesel generator as a backup power source for fire protection is because in fire protection, two power supplies are required, which can be two power plants and two transformers, or one line of city power and one line of diesel generator set power supply. Meet the requirements of fire backup power.

Ensuring preparedness involves:

Backup Power: Install backup generators or connect to reliable emergency power sources to ensure continuous operation during outages.
Automatic Transfer Switches: Use automatic transfer switches to quickly switch to backup power in case of a main power failure.
Battery Backup: For jockey pumps and control systems, use battery backups to maintain pressure and control functionality during short-term outages.
Regular Testing: Test the backup power systems regularly to ensure they are operational and capable of supporting the fire pump system.

500gpm, 5bar fire fighting pump, export to Greece.Duty pump is electric fire pump, diesel engine fire pump as standby.

The biggest problem in the event of a fire is to ensure continuous fire-fighting power. If the fire is not extinguished in time due to insufficient supply of raw materials, it will cause huge economic losses. Therefore, high-quality fire pumps must be selected to avoid quality problems. , resulting in irreparable damage.