Changsha Zhonglian Pump Industry Co., Ltd.

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Having 26 series -312 varieties - over 1000 pump models

Focused on water pump research and development manufacturing for 36 years

Free training for operation and maintenance personnel/free installation guidance/free provision of installation drawings

Self-balancing multistage pump

Multistage pump

Coal Mine Safety Certified Multi-stage Pump

Vertical multistage pump

Integrated pump station

Vacuum pump

Fire pump

Constant-pressure water supply equipment

Other pumps

Genuine accessories

XBC-type diesel engine fire pump

Traffic: 30–1098 m³/h

Head: 30-185m

Power: 7.7-520kw

Rotational speed: 1450-2900r/min

Shaft power: 5.6-383kw

Price: 1.88 to 998,000

The XBC-type diesel engine fire pump is a newly developed product independently researched and manufactured in response to the market demand and usage characteristics of fire pumps for building fire protection in China. This series of products features high efficiency, long service life, and high reliability (with no occurrence of the failure where the pump gets stuck upon startup after prolonged periods of inactivity). It is currently the preferred choice for fire protection and sprinkler systems in construction projects within China. The product’s performance complies with the performance requirements and test methods specified in GB 6245-2006 “Fire Pumps.” This product is suitable for conveying fluids at temperatures below 80℃.

Hotline:

+86 0731-88632200

classification：

Fire pump

keyword：

Horizontal Single-Stage Fire Pump

Product consultation

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Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

The XBC-type diesel-engine fire pump unit is a newly developed product independently researched and manufactured in accordance with the standards stipulated in GB 6245-2006 “Fire Pumps,” as well as the market demands and operational characteristics of fire pumps used in domestic building fire protection systems. This series of fire pumps features high efficiency, long service life, and high reliability (with no risk of seizing upon startup after prolonged periods of inactivity). It is currently the preferred choice for fire protection and sprinkler system applications in construction projects across China. The product’s performance meets the requirements and test methods specified in GB 6245-2006 “Fire Pumps.” It is suitable for conveying clean water or liquids with physical and chemical properties similar to water, provided that the temperature does not exceed 80°C and the liquid contains no solid particles. While fully satisfying fire-fighting conditions, this pump also accommodates the operational requirements of domestic and industrial water supply systems. The product can be used in standalone fire-fighting water supply systems, as well as in integrated fire-fighting and domestic water supply systems. It is applicable to a wide range of scenarios, including building, municipal, industrial and mining, water supply and drainage, marine, and field operations. An important advantage is that when the power supply suddenly fails and the electric fire pump cannot start, the diesel-engine fire pump will automatically activate and take over emergency water supply.

XBC-type diesel engine fire pump

The XBC-type diesel-engine fire pump unit is primarily composed of a diesel engine, a fire pump, a coupling device, a fuel tank, a radiator, a battery pack, and an intelligent, fully automatic control panel. As a stationary fire-fighting equipment, it has been widely used in fire protection systems, especially for firewater supply in emergency situations such as power outages or abnormal mains power conditions. The pump unit equipped in this set is a horizontal, double-suction, single-stage centrifugal fire pump—our company’s specialized horizontal single-stage and multistage fire pumps—which feature high efficiency, a wide performance range, safe and stable operation, low noise, long service life, and convenient installation and maintenance. The diesel engines used are models from leading domestic internal combustion engine manufacturers, including the 495, 4135, X6135, and 12V135 series. Depending on user requirements, diesel engines from other manufacturers can also be configured as the prime mover. This unit is mainly designed for conveying clean water or other liquids with physical and chemical properties similar to water. By modifying the materials of the pump’s wetted parts, changing the sealing configuration, and adding a cooling system, the pump can also be used to convey hot water, oils, corrosive media, or media containing abrasive particles.

The new-generation XBC diesel fire pump unit also features an LCD display. Compared to traditional instrument-based monitoring, this system enables remote monitoring, making it much easier to adjust the equipment’s operating parameters and significantly improving work efficiency while reducing the physical workload of personnel. With its comprehensive performance and forward-thinking design, this equipment far surpasses other similar products on the market.

Product Parameters

Main features of the XBC-type diesel engine fire pump unit:

1. The electric pump serves as the primary fire pump and can automatically start based on the fire situation.

2. Equip with a constant-pressure pump to maintain a stable network pressure;

3. The diesel engine pump serves as a backup fire pump and will automatically start in the event of a power failure to the fire protection system.

4. When the electric pump fails, the diesel engine pump starts up.

5. Automatic Start-up: Upon receiving a fire alarm, network pressure signal, power failure, or other start-up signal, the diesel pump unit can automatically start and reach full-load operation within 15 seconds.

6. Automatic charging: The battery can be automatically charged using either mains power or a diesel engine-driven charger, ensuring smooth starting of the unit.

7. Automatic Alarm: Automatically alarms and provides protection against faults such as low oil pressure and high water temperature in the diesel engine; it also triggers an alarm and shuts down the engine in case of overspeed.

8. Automatic preheating: Keeps the diesel engine in a warm standby state to ensure readiness for emergency operations;

9. Direct-coupling type: For diesel pump units with a capacity of 360 kW or less, the domestically *-developed technology of directly connecting the diesel engine and pump via an elastic coupling significantly reduces the number of failure points, greatly shortens the unit’s startup time, and enhances both the unit’s reliability and its emergency performance.

10. Users may also request the configuration of other alarm outputs (non-standard supply);

11. Equipped with telemetry, remote signaling, and remote control functions (non-standard supply).

Operating Conditions and Model Designations for XBC Diesel Engine Fire Pump Sets:

1) Ambient temperature ≤ 50℃, medium temperature ≤ 80℃,

2) The medium’s specific gravity shall not exceed 1240 kg/m³.

3) The liquid level must be higher than the pump’s inlet; running the pump dry without liquid is strictly prohibited.

Meaning of XBC Diesel Engine Fire Pump Unit Model Designations

Working principle of the XBC-type diesel engine fire pump unit:

The XBC-type diesel-engine fire pump unit features both its inlet and outlet ports located on the pump body. During maintenance, only the pump cover needs to be lifted out; the rotor assembly can be moved for inspection and repair without having to disconnect the piping. This makes the maintenance process extremely convenient. Depending on the application requirements, the diesel engine can be installed either on the left or right end of the unit, facilitating on-site installation. Structurally, the axial dimension of the rotor assembly has been shortened, resulting in high shaft rigidity and ensuring more stable and reliable operation. The pump body is equipped with a sealing ring, while the impeller sealing ring is available as an optional feature.

The XBC diesel fire pump is installed as a complete, integrated unit together with electrical and instrumentation equipment. It features comprehensive functionality, a high degree of automation, a compact structure, automatic fault alarms, and the ability to receive start-up signals and autonomously execute the start-up procedure, enabling rapid transition to full-load operation. The unit can be optionally equipped with vibration dampers, rubber flexible couplings, and mufflers with corrugated pipes at the exhaust ports, according to customer requirements. In addition, it is equipped with alarm devices for conditions such as fuel shortage, low battery voltage, high lubricating oil temperature, and overspeed, ensuring reliable cold-start performance of the diesel engine even in low-temperature environments. The entire system is safe, dependable, and easy to operate.

The XBC-type diesel engine fire pump unit is mainly composed of components such as the pump body (1), pump cover (2), impeller (3), shaft (4), sealing ring (5), shaft sleeve (8), and suspension bearing assembly (12).

The pump body and pump cover of the XBC-type diesel fire pump are split at the back side of the impeller—this is commonly referred to as the "rear-opening" structural design. The advantage of this design is that maintenance and inspection are convenient: during servicing, the pump body, suction piping, discharge piping, and motor remain stationary. All that’s required is to remove the intermediate coupling component (which has been extended) to extract the rotor assembly for inspection and maintenance. The pump casing—comprising both the pump body and pump cover—forms the pump’s working chamber. The impeller, shaft, and rolling bearings constitute the pump’s rotor. The suspension bearing assembly supports the rotor components, while the rolling bearings bear both the radial and axial forces exerted on the pump. To balance the pump’s axial force, most pumps are equipped with sealing rings at both the front and rear of the impeller, and a balance hole is provided on the impeller’s rear cover plate. However, since some pumps have relatively small axial forces, their impellers do not include sealing rings or balance holes on the back side.

The pump’s axial sealing ring consists of a packing gland (9), a packing ring (10), and packing material (11) to prevent air ingress or excessive water leakage. If the pump impeller is balanced, the cavity equipped with soft packing is connected to the impeller inlet. When the liquid at the impeller inlet is under vacuum, air can easily enter along the surface of the shaft sleeve. Therefore, a packing ring is installed within the packing chamber; via a small hole in the pump cover, pressurized water from the pump chamber is directed to the packing ring to provide effective sealing. If the pump impeller does not have balancing holes, since the liquid pressure on the back side of the impeller exceeds atmospheric pressure, there will be no air leakage issue, and thus a packing ring is not required. To prevent shaft wear, a shaft sleeve is fitted around the area where the shaft passes through the packing chamber. An O-ring seal is installed between the shaft sleeve and the shaft to prevent air or water leakage along the mating surfaces.

　　The pump is driven via an extended flexible coupling connected to the motor. When viewed from the drive end, the pump rotates clockwise.

　　The pump’s inlet and outlet flanges are designed for a pressure rating of 1.6 MPa, making pipeline integration convenient.

Working conditions: The allowable working pressure is 2.5 MPa. Based on the maximum pressure that the pump casing can withstand, the pump body and pump cover are made of ductile iron (2.0 MPa) or cast steel (2.5 MPa), among other materials.

Material of Main Components for XBC Diesel Engine Fire Pump Sets

Friendly reminder: For more performance parameters of the XBC-type diesel fire pump, please click on the → [Pump Selection] page to view them.

Why choose us?

Changsha Zhonghlian Pump Industry Co., Ltd. was founded in 1989 and was independently established after the restructuring of Changsha Water Pump Factory. It is a comprehensive national high-tech enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Equity Exchange on December 31, 2019, with the abbreviation "Zhonghlian Pump Industry" and the equity code: 600275HN. It is currently a key backbone enterprise in China's centrifugal pump industry and one of the major professional manufacturers of multi-stage pumps in the country. The headquarters is located in Changsha City, Hunan Province, a historical and cultural city in China.

41000 m²

Square meters of land area

100 %

100% factory pass rate

41000 m²

Square meters of land area

100 %

100% factory pass rate

What is your typical delivery time?

Models in stock can be shipped the next day at the latest. All others are custom-made, with lead times generally ranging from 7 to 90 days depending on the product size and project specifics. Please contact our sales manager for details: 0731-88632200 。

Do you have centrifugal pumps in stock?

Centrifugal pumps come in numerous models and configurations. Except for a small number of high-volume, standard models that are in stock, the vast majority are not stocked and are customized products. We need to select a pump based on your site's flow rate, head, media temperature, pH value, and installation conditions, etc., to determine the pump model and configuration before we can submit an order to the factory for production.

What information should I provide when requesting a quote?

Generally, to obtain an accurate quotation, we recommend providing us with the following information: pump flow rate, head, on-site operating voltage and frequency, temperature, pH value, and solid particle content of the fluid being conveyed, and on-site installation conditions (horizontal or vertical installation), etc.

If you are not sure, don't worry, our business managers will assist you in determining this.

What products do you mainly produce?

Zhonglian Pump Industry manufactures various large industrial centrifugal pumps. Main products include: self-balancing multi-stage pumps, multi-stage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condensate pumps, etc.

Could you help me with the selection?

Certainly! If the water pump model is not selected accurately, there will be big problems. If you choose a smaller one, it won't meet your needs; if you choose a larger one, it will waste electricity and fuel, increasing your costs.

Why is it so slow to get a price quote?

Because centrifugal pumps are non-standard customized products with many models, the price range is also very large. Even for the same model, the price difference is also very large due to different materials and configurations. Taking the most common water pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clarify the relevant information to give you an accurate price. Normally, if you provide relatively comprehensive information, we can quote within 5 minutes.

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+86 0731-88632200

Export Trade/Technical Support:

+86 153-4831-2290

Head Office Email:

zoomlian@yeah.net

No. 210, Huanbao Zhong Road, Yuhua District, Changsha City, Hunan Province, Leowoju Wisdom Valley Building B, 8th Floor

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