OTS series double suction horizontal split case pump

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 EJ (Electric pump + Jockey pump) 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.

Fire pumps can be installed in locations with limited space, but it’s important to follow space requirements outlined in the manufacturer’s specifications and local codes. Proper clearances around the pump ensure ventilation and accessibility for 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 EDJ Fire Pump Set 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 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.

Flow: 30-9000GPM
Head: 3-20Bar
Speed: 740-2900r/min
Frequency: 50 HZ or 60 HZ

The ED Fire Pump Set combines electric and diesel engine pumps to ensure uninterrupted fire protection and a reliable water supply.

Potential risks associated with diesel fire pumps include fuel spills, engine emissions, mechanical failures, and electrical hazards. These risks can be mitigated through proper risk assessment and mitigation strategies, such as implementing spill containment measures, ensuring proper ventilation in pump rooms, conducting regular equipment inspections and maintenance, and implementing safety protocols for fuel handling, storage, and disposal. Additionally, it’s essential to comply with relevant regulatory requirements and industry standards to minimize risks and ensure the safe operation of diesel fire pump systems.

Flow: 25-100gpm
Head: H＜8bar
Speed: 2950-3500RPM

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.

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.

Flow: 30-9000GPM
Head: 3-20Bar
Speed: 740-2900r/min
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.

Non-UL Flow：30-9000 GPM
Non-UL Head： 3-20 Bar (40-300 psi)
UL Flow：50-3000 GPM
UL Head： 5-20 Bar (72.5-290 psi)
The EDJ Fire Pump Set includes diesel engine pumps, electric pumps and jockey pumps.

The biggest difference between the diesel engine fire pump and the electric water pump is that it has its own independent power supply system – the storage battery. Therefore, the start and operation of the diesel engine fire pump can be completely separated from the mains.

DJ fire pump set loading container
400gpm 6.8 bar DJ fire pump set laoding container in factory

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

EJ vertical turbine fire pump package is including one electric vertical pump and one CDL jockey pump with accessories of gate valve and check valve, pressure relife valve, pressure Gauge, pressure switch, pressure vessel,and mainfold pipe for suction and discharge

·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 DJ fire pump set consists of a pump connected to the diesel engine, 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. This fire pump set can be used in fire hose and fire hose reel systems, fire sprinkler systems, fire water monitoring systems, fire alarm systems and fire hydrant systems.

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 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.

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.

·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

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℃.

With the continuous progress of the times, the application of diesel engine fire pumps is becoming more and more extensive. Diesel engine fire pump is a common and necessary facility. Only when the fire signal comes, and the electric water pump fails or the power supply is cut off, the diesel engine fire pump will automatically start. Diesel engine fire pump is installed together with electrical instruments, with complete functions, compact structure, automatic fault alarm, receiving start signal, and can automatically complete the start-up procedure and fast full-load operation. , Enough to ensure that the diesel engine fire pump is started in a low temperature environment, the whole system of the diesel engine fire pump is safe, reliable, and easy to use.

Public transportation systems, including subway stations and railway terminals, are complex environments with high volumes of passengers and potential fire hazards from electrical equipment, flammable materials, and mechanical systems. Fire pumps are vital in these settings for delivering the water or suppression agents necessary to extinguish fires in tunnels, platforms, and adjacent facilities. Jockey pumps ensure constant pressure in the system, so fire suppression mechanisms like sprinklers, hydrants, and standpipes are always prepared to respond. Given the confined and underground nature of many transportation hubs, fire protection systems must be capable of addressing fires in tight, poorly ventilated spaces while facilitating the safe evacuation of passengers. The pumps also need to support fire hose connections for firefighters, who might need to cover long distances within tunnels or elevated railways. Regular inspections and emergency drills are essential to ensure that fire pumps are fully operational and integrated with ventilation and evacuation systems, providing a coordinated response to fire emergencies in these high-risk, densely populated environments.

Maintenance records provide a documented history of the pump’s condition, service intervals, and repairs, which are vital for compliance, insurance, and ensuring that pumps are in good working order during emergencies. Regular records also help identify recurring issues, allowing for proactive maintenance.

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.

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). The fire pump equipped in the unit is a horizontal single-stage and multi-stage fire-fighting special pump. It is mainly composed of diesel engine, fire pump, connection device, fuel tank, radiator, battery pack, intelligent automatic control panel, etc.

The minimum fire rated pressure of small fire fighting package set water supply equipment is 6 bar, and the minimum fire rated capacity is 25 GPM. EDJ small fire fighting package set water supply equipment includes at least two power or power source driven pumping units, pressure tanks, pipes, valves and accessories, measurement and control instruments, control cabinets, outdoor rain cover, etc.

The equipment is a diesel engine fire pump with a flow rate of 500gpm and a pressure of 70m customized by a Nigerian customer. The pump is suitable for fire protection occasions such as warehouses, docks, airports, petrochemicals, power plants, liquefied gas, textiles, ships, oil tankers, etc.