Fire pump, how to convert the main and standby during the use of the fire pump

Fire pumps are part of the applied water supply and are powered by electricity, diesel. They activate when the pressure in the fire sprinkler system drops below a certain level and provide a flow of water to the sprinkler system at very high pressure, which is then discharged onto the fire.

Smart constant pressure water supply system for firefighting. Energy-saving, multi-pump control, remote monitoring—ideal for high-rise buildings and commercial complexes.

Fire pump model parameters are complete, specifications are rich, affordable, with a wide range of use, corrosion resistance, stable performance and other characteristics, there are perfect after-sales service, can be customized according to demand processing.

What kind of terrain to choose what kind of water pump

This problem, in short, is the selection of water pumps. The following are the applicable way for you to choose water pumps from zjbetter. I hope they can help you choose water pumps and help you better. Choose the water pump that suits your design.
1. Confirm the use terrain
First understand the terrain in which the outfit is used, including temperature, moisture, air pressure, air cattiness, dustproof and leakproof conditions, and the position of dangerous areas.
2. Confirm operating conditions
Refers to the liquid face pressure( absolute) on the suction side of the liquid, the liquid face pressure on the discharge side, intermittent or nonstop work, fixed or mobile position, and the convenience of installation and conservation.
3. Confirm the nature of the medium
Medium temperature, viscosity, density, impregnated vapor pressure, solid flyspeck periphery and content, gas content, cattiness, volatility, trap, toxin.
4. elect the material of the pump bathe corridor
According to the physical and chemical parcels of the pumped medium above, the material of the inflow- passing corridor is determined.
5. Determine performance parameters
The performance parameters of the water pump can be determined by computation, analogy, test and other styles.
6. Determine the installation type
The installation of the channel is determined by the layout of the channel and the installation point, and there are direct connection, perpendicular and other types.
8. Determine the number of pumps
In general, spare pumps, especially fire pumps, are set up, and the number of pumps is named according to different situations.

The efficient and reliable small diesel-powered fire pump has a lightweight design and is suitable for various complex environments. It provides strong power output and can still operate efficiently without power supply. It is suitable for urban, agricultural, industrial and remote areas to ensure the smooth completion of firefighting tasks.

The building fire water pressure boosting system ensures stable pipeline pressure, rapid response, and reliable fire protection by combining efficient control, energy-saving operation, and smart automation — delivering continuous readiness for high-rise buildings, industrial sites, and commercial facilities.

Diesel engine fire pumps are often used for emergency water supply in high-rise buildings, water companies, steel plants, wineries, chemical plants, hotels, hospitals, and other large-scale projects. Diesel engine fire pump is suitable for unattended emergency water supply system. The product has the characteristics of advanced technology, high degree of automation, superior performance, complete protection functions, reasonable structure, simple installation, and high cost performance. net pressure. Diesel engine fire pumps are selected according to different working conditions: single-stage single-suction centrifugal pumps, high-pressure multi-stage pumps, double-suction split pumps, etc.

Operators should be trained on the proper use of fire pumps and follow safety guidelines. Emergency stop procedures should be understood, and operators should wear appropriate personal protective equipment.

High-performance fire pumps provide stable and reliable fire water supply solutions for various buildings and industrial facilities. They have the advantages of strong head, high flow rate, durable structure and intelligent control. They are suitable for harsh environments and long-term continuous operation, helping to improve the safety and emergency response capabilities of the overall fire protection system.

·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

This article analyzes the advantages of diesel fire pump units with enhanced cooling capacity in industrial fire protection, focusing on their efficient heat dissipation system, stable power output, large flow water supply, and long-term continuous operation performance. They are suitable for industrial fire protection systems under high temperature, high load, and complex working conditions.

Electrical systems for fire pumps include the power source (usually a dedicated circuit), control panels, and backup systems like generators. These components ensure reliable start-up, monitoring, and operation under emergency conditions. Key elements include overload protection, emergency stops, and regular testing.

Scope of application of fire pump:
Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service.

The fully automatic pressure-maintaining fire pump system is designed to meet the urgent water supply needs in firefighting scenarios by integrating advanced pump technology with intelligent control systems. Its unique pressure stabilization mechanism rapidly adjusts the system pressure at startup, ensuring that sufficient water pressure is available during the early stages of a fire. The automated control module offers round-the-clock intelligent monitoring and self-diagnosis, guaranteeing stable and efficient operation under extreme conditions. With a compact and modular design that simplifies installation and maintenance, this system is ideal for high-rise buildings, underground garages, industrial parks, and other locations where continuous fire water supply is critical. The system not only significantly improves firefighting efficiency but also reduces operational costs, making it the ideal solution for building modern, intelligent fire protection systems.

The intelligent diesel pump control system features auto start-stop, multi-alarm protection, remote communication, and smart maintenance—enhancing fire pump performance and safety for petrochemical, power, and industrial applications.

DJ fire pump set consist of diesel pump, jockey pump and control panel. The diesel engine is fixed on the base with anti-vibration rubber pads and the pump is directly coupled to a diesel engine through flexible coupling, According to the power output of the engine the electrical system, the diesel engine can be Cummins,Deutz,Perkins and Other China brand engine(Shangchai,Yuchai,ec.) and it consists of alternator, started motor, fuel system, lubricating system, exhaust system, etc.

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.

ZJ-BETTER industrial diesel fire pump packages provide reliable emergency fire protection for large buildings and petrochemical projects, featuring auto control, corrosion resistance, and NFPA 20 compliance for critical fire safety assurance.

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.

An anechoic check valve, control valve and pressure gauge should be installed on the discharge pipe of the fire pump; a pressure gauge and pressure switch should also be installed on the total discharge pipe of the system; a buffer device should be added when installing the pressure gauge. A cork should be installed between the pressure gauge and the buffer device; the pressure gauge range should be 2 times to 2.5 times the working pressure of the system when there is no design requirement.

– Diverse Area Coverage: Ensuring comprehensive coverage for offices, retail spaces, dining areas, and other facilities.
– High Occupancy Management: Implementing systems that handle high occupancy and prioritize occupant safety.
– Integration with Building Management Systems: Coordinating with HVAC, security, and other building systems for comprehensive safety.
– Compliance with Commercial Building Codes: Adhering to fire safety regulations specific to multi-purpose commercial buildings.

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.

Flow:5-400L/s
Head:3-20Bar
Material:HT200, SS304, Bronze
Caliber:65-350mm
Pressure:0.3~1.5MPa
Speed:740-2900r/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. 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.

EJ fire pump set consist of electric fire pump and jockey pump, EDJ fire pump consist of diesel engine fire pump, electric fire pump and jockey pump

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

This integrated electric fire pump set is specially designed for modern urban fire protection systems. It combines the control cabinet, fire pump, piping system, and pressure gauges into one compact unit, making installation easy and space-efficient. Powered by a high-performance electric motor, the pump offers stable operation and fast response, ensuring reliable water supply during fire emergencies in high-rise buildings, industrial zones, and commercial complexes.

The smart control system features automatic start/stop and fault alarms, significantly enhancing operational safety and reliability. With its compact structure and intelligent design, this pump set is the ideal choice for advancing urban fire protection into a smarter and more efficient era.

The function of the diesel fire pump is very powerful. We can set the control time during use, and it can be automatically charged, automatically started, as well as automatic alarm and automatic preheating functions. It is very reliable to use.

USA clients EDJ fire pump test process
The pump is 250gpm 8bar, clients use Cummins brand engine
Pump test well, can match the rated flow and head
After test then package, and dispatch to port direcrtly

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.