Everything You Need to Know About Fire Pump Pressure Relief Valves

Better Technology Group Co., Ltd. is a professional water pump manufacturer. The company has a strong design, production, sales and service teams. The production history is long, the quality system is perfect, the testing methods are complete, the production process is advanced, and the product quality is guaranteed to avoid customers’ worries. Since the establishment of the company, the products have been constantly optimized and innovated, with the quality of replacing imported products and the price of domestic products.

The diesel engine fire pump and the electric fire pump are “one standby and one use”. The control boxes of the diesel engine fire pump and the electric fire pump should be kept independent of each other, and the diesel engine fire pump must be used as the backup pump of the electric fire pump, and cannot be used as backup for each other.

The pump start signal in the fire extinguishing system is directly connected to the electric fire pump control box, and it is not suitable to be connected to the diesel engine fire pump control box at the same time. The pump start fault signal of the electric fire pump control box and the pump start signal in the fire extinguishing system are used as the automatic start pump start signal of the diesel engine fire pump control box, and the line is connected to the control box of the diesel engine fire pump. The pump start failure signal of the diesel engine fire pump control box received an alarm from the fire control center. After receiving the alarm, the authorized personnel rushed to the pump room to force the diesel pump to start in an emergency.

Troubleshooting common issues with fire pumps involves systematic checks of components, electrical systems, and fluid dynamics. Regular maintenance and having a qualified technician perform diagnostic tests are essential.

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.

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.

Yes, modern fire pumps typically come with safety shutoff features to prevent damage from overheating, low oil pressure (for diesel pumps), or running dry. These features are designed to protect the equipment and prolong its life, though in critical applications, it’s vital that shutoff mechanisms do not compromise firefighting capabilities.

Diesel engine fire pump is a common 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. The diesel engine fire pump is installed together with the electrical instrument, with complete functions, compact structure, automatic fault alarm, accepting the starting signal, and can automatically complete the starting procedure and run at full load quickly. When the diesel engine fire pump is insufficient in fuel, low battery voltage, and high lubricating oil temperature , enough to ensure that the diesel engine fire pump starts in a low temperature environment, the entire system of the diesel engine fire pump is safe, reliable, and easy to use.

EDJ 500gpm@8bar Fire pump set test
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.

100gpm5bar ED fire pump ready to Africa

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.

The Max Power-2000kw-10KV Split Case EDJ Fire Pump Set is a cutting-edge fire protection solution that combines power, efficiency, and reliability. With a remarkable power output of 2000 kilowatts and a 10-kilovolt system, this fire pump set delivers unmatched water flow capacity and electrical performance. Its advanced Split Case design ensures easy maintenance and optimal performance, making it suitable for a variety of applications. Engineered to exceed industry standards, the Max Power-2000kw-10KV Split Case EDJ Fire Pump Set offers dependable fire protection in the most demanding environments. Invest in this state-of-the-art solution and experience the pinnacle of fire safety technology.

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 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.

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 will not be completely dependent on city power.

Spectrum range: fire pump can use a single-stage end suction pump,a combination of multistage single-suction pumps, single-stage double-suction pumps and other kinds of pumps, pump or more kinds of parallel flow, wide pressure range.
Automatically. when the engine fire pump receives a valid signal fire, remote control start signal when the unit will start automatically; when the fire pump motor supply failure or lack of signal phase, the unit will automatically standby. Diesel fire pump start 10s, if not start running, stop 10s, and then restart. The unit will automaticaly repeat three times.
Alarm System: repeatedly failed to start alarm, low diesel engine oil pressure alarm, ultra-high temperature alarm diesel engine, diesel engine speed alarm, low battery alarm, charging failure alarm, an alarm indicating a lack of fuel.
kinds of ways to start signal fire started, manually start or remote start.

Flow: 30-9000 GPM
Head: 3-20Bar
Speed: 740-2900r/min
Material: HT200, SS304, Bronze

Small fire pump set—With small flow, small lift and diesel electric matching, it is suitable for small buildings, small in size, small in floor area, and can save a lot of space and installation. It is the first choice of many foreign customers.Better Technology Group is committed to the production, testing, packaging, delivery and technical development of fire pumps. It researches pump products in many aspects and brings high-quality and high-performance fire pump products to many countries.

There are four types fire pump, including end suction pump, split case pump, multiage pump and vertical turbine pump. These fire pumps may bepowered by an electric motor or diesel engine and on rare occasion powered by a steam turbine.

Understanding the appropriate testing frequency for fire pumps is crucial for compliance with safety standards and ensuring system reliability. This article explores the recommended testing schedules, including monthly, quarterly, and annual tests. It also underscores the need for more frequent testing in specific situations, such as critical facilities or harsh operating environments.

The Max Power-2000kw-10KV Split Case EDJ Fire Pump Set is a cutting-edge fire protection solution that combines power, efficiency, and reliability. With a remarkable power output of 2000 kilowatts and a 10-kilovolt system, this fire pump set delivers unmatched water flow capacity and electrical performance. Its advanced Split Case design ensures easy maintenance and optimal performance, making it suitable for a variety of applications. Engineered to exceed industry standards, the Max Power-2000kw-10KV Split Case EDJ Fire Pump Set offers dependable fire protection in the most demanding environments. Invest in this state-of-the-art solution and experience the pinnacle of fire safety technology.

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.

Fire pressurized and stabilized water supply equipment can make the fire water supply pipeline system the most unfavorable point always maintain the fire pressure, and the use of air pressure water tank always stored in the 30 seconds of fire water, to ensure the fire pump before the operation of the fire spray water; The device uses the operating pressure set by the air pressure water tank to control the operating condition of the pump and achieve the function of pressurization and pressure stabilization.

At the morning of the design of the fire pump, the lift, inflow and power are different according to the occasion and model. In general domestic structures, the choice of fire pump is also different according to the age, the height of the bottom, and the number of residers.

The fire pump is used for conveying clear water without solid patches and liquids with analogous physical and chemical parcels to water. Water force, heating, restroom, boiler hot and cold water rotation, water force of pressurized air exertion refrigeration system and outfit matching and other occasions.

The fire pump set consists of electric pump + diesel pump + jockey pump, The pressure switch and control cabinet can automatically turn on/off three pumps-the electric pump and jockey pump operate when there is electricity and the diesel pump activates when the power cuts.

The fire pump controller monitors and controls the operation of the fire pump. It ensures that the pump starts automatically when needed, maintains proper pressure, and follows safety protocols.

The diesel engine with right-angle gearbox combination is a high-performance power transmission solution widely used in various industrial applications. It features a diesel engine as the primary power source and a right-angle gearbox for efficient power redirection and speed matching. This compact and reliable duo enhances production efficiency, reduces energy consumption, and provides a stable power source for industrial automation and ship propulsion systems. Its adaptability to diverse climate conditions and load demands further reinforces its significance in modern industries.

Diesel engine fire pumps are suitable for use in high lift and high flow fire water supply environments 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 a diesel engine fire pump is a good choice.

Three start-up functions for diesel engines:
1. Manual start function: manual and automatic interlocking can be completed through the transfer switch, and the manual start function can be realized:

2. Automatic manual function: allow to start three times. If the startup fails for three times, it will issue a “startup failure alarm” and automatically exit the startup state. After a successful startup, the time from startup to rated load is 5-10-15S (depending on the unit capacity);

3. Emergency manual direct start function: When the automatic control device fails, the emergency manual direct start function can be realized.

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 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.

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