Horizontal split case fire pump

The Horizontal split case fire pump, as a centrifugal pump designed to efficiently transfer large volumes of water, is widely used in all fire extinguishing systems. The following is a detailed professional introduction to horizontal center-opening fire water pumps:

Working principle

The horizontal center-opening fire water pump is a double-suction centrifugal pump, with the symmetrical water intake design. Water enters the center of the impeller from two directions, is accelerated through the impeller, and is guided to the outlet by the volute around the impeller. The design reduces the axial force, and improves the operation stability and efficiency of the pump.

Key components

1. Pump casing:

-The pump casing is usually of the split type (i.e., center-opening), so as to facilitate the inspection and maintenance.

-It is usually made of cast iron, stainless steel or other high-strength materials, and can withstand high-pressure operation.

2. Impeller:

-The impeller has a double-suction design, sucks water from both sides, and reduces axial load.

-It is usually made of bronze, stainless steel or other corrosion-resistant materials, so as to ensure long life and high efficiency.

3. Pump shaft:

-It connects the impeller and the driving motor, and transmits the rotational power.

-It is usually made of the high-strength stainless steel, with good corrosion resistance.

4. Bearing:

-It supports and stabilizes the pump shaft to reduce friction, and the rolling bearing or sliding bearing is usually used.

-Periodic lubrication and maintenance shall be performed to ensure stable operation of the pump.

5. Sealing:

-The mechanical seal or packing seal is used to prevent liquid leakage.

-The wear-resistant and corrosion-resistant materials are usually selected.

Performance characteristics

1. High efficiency:

-The double-suction design ensures more stable water flow and higher efficiency.

-High flow and high lift can be provided with low energy consumption.

2. Reliability:

-The center-opening design facilitates the maintenance and inspection, and reduces the downtime.

-The symmetrical design of the impeller reduces the axial force, and prolongs the service life of the pump.

3. Convenient maintenance:

-The center-opening pump casing design enables easy access and maintenance of internal components, with no need to disassemble the pipes.

-It has a compact structure, and the components are easy to replace.

Installation and application

1. Installation:

-Attention shall be paid to horizontal alignment of the pump during installation, so as to make sure the foundation is stable, and prevent vibration and noise.

-The suction and discharge pipes shall be configured correctly, so as to avoid the phenomenon of cavitation.

2. Application scenarios:

-It is widely used in high-rise buildings, large commercial centers, industrial facilities and municipal water supply systems.

-It also applies to fire sprinkler systems and fire hydrant systems of the buildings that require high flow and high lift.

Specifications and standards

1. NFPA 20:

-It specifies the requirements for design, installation and testing of fire water pumps, so as to ensure their effectiveness and reliability in emergency situations.

2. CCCF:

-The certification by China Certification Center for Fire Products (CCCF) ensures that the pumps comply with relevant domestic standards and regulations, such as GB 6245 and GB 50974.

3. Other standards:

-For example, ISO 9001 quality management system certification, ensuring quality control during production.

Advantages

1. High flow capability:

-The double-suction design provides higher flow capacity, and is suitable for large-scale fire extinguishing systems.

2. Long service life:

-The symmetrical design and high-quality materials extend the service life of the pump.

3. Operation stability:

-The axial force and vibration are reduced, so as to ensure smooth operation of the pump under all conditions.

Summary

The horizontal center-opening fire water pump ensures its key role in all fire extinguishing systems through the efficient double-suction design, durable materials and precision manufacturing that meets international and national standards. The horizontal center-opening fire water pump can provide reliable performance and long service life during routine operation and in emergency situations, becoming an important part of the fire extinguishing system.