About centrifugal pumps

A centrifugal pump is a type of pump that operates on the principle of centrifugal force, mainly composed of an electric motor, pump body, and impeller.

When the electric motor drives the impeller to rotate at high speed, the impeller drives the liquid between the blades to rotate. Due to the centrifugal force, the liquid is thrown from the center of the impeller towards the outer edge, and the kinetic energy also increases accordingly. After the liquid enters the pump casing, due to the gradual expansion of the flow channel in the volute shaped pump casing, the liquid flow rate gradually decreases, and a part of the kinetic energy is converted into static pressure energy. As a result, the liquid flows out along the discharge outlet at a higher pressure. At the same time, a certain vacuum is formed at the center of the impeller due to the liquid being thrown out, and the pressure at the liquid level is higher than that at the center of the impeller.

Therefore, the liquid sucked into the pump under the pressure difference. The impeller keeps rotating, and the liquid is continuously sucked in and out.

Centrifugal pumps can be divided into low-pressure pumps, medium pressure pumps, and high-pressure pumps according to their working pressure; According to the impeller inlet method, it can be divided into single-sided inlet pumps and double-sided inlet pumps; According to the position of the pump shaft, it can be divided into horizontal pumps and vertical pumps.

Advantages of centrifugal pumps:

Compact structure. Centrifugal pumps have simple structure, small volume, light weight, few components, convenient manufacturing, low cost, small footprint, and are suitable for various application scenarios.

• Easy to operate. Centrifugal pumps are easy to operate and maintain, and can achieve automation and remote operation. They have a high speed and can be directly connected to electric motors and steam turbines. The transmission mechanism is simple and compact.
• Wide range of flow and pressure. Centrifugal pumps provide a wide range of flow and pressure, which can meet various application requirements.
• Large range of liquid conveying. Suitable for conveying various liquids, including high-temperature liquids and liquids with impurities.
• High efficiency. The centrifugal pump has high operating efficiency, stable output, and no suction or discharge valves, making it reliable and with low maintenance costs.
• Strong applicability. Centrifugal pumps are widely used in industry and are suitable for various occasions.
• In addition, the centrifugal pump operates without noise and can conveniently adjust the flow rate over a wide range by utilizing the different openings of the regulating valve.

Why did you choose us?

With years of experience in centrifugal pump manufacturing, we produce high-quality centrifugal pump products.

We are a top centrifugal pump manufacturer/supplier in China, using high-quality materials and high-level assembly units in the production process.

Our factory has a group of highly qualified and experienced experts. This team of employees is thoughtful in providing unparalleled service to our clients.

The working principle of our product

The working principle of a centrifugal pump mainly depends on the rotation of the impeller. The impeller is usually driven by an electric motor to rotate at high speed, which drives the liquid inside to rotate accordingly. Under the action of centrifugal force, the liquid is thrown from the center of the impeller towards the outer edge and enters the flow channel inside the pump casing.

During the process of liquid being thrown out, the pressure near the impeller decreases, forming a low-pressure area that is lower than atmospheric pressure. Therefore, the external liquid enters the pump through the suction pipe under the action of atmospheric pressure. The liquid entering the pump is thrown out again by the rotation of the impeller and pressed into the outlet pipe. In this cycle, the liquid is continuously extracted and discharged.

Chinese professional centrifugal pump manufacturers suggest remembering the following points when choosing centrifugal pumps:

1. Flow rate and head: When selecting a centrifugal pump, it is necessary to determine the appropriate type based on the flow rate and head requirements in the actual usage scenario. Generally speaking, flow rate and head are key parameters that affect the performance of centrifugal pumps. When selecting, it is necessary to fully consider the range of flow and head changes under different operating conditions to avoid situations where the selection is too small or too large.
2. Media and its characteristics: The medium of a centrifugal pump refers to the specific liquid it transports, such as water, oil, acid and alkali liquids, etc. When selecting a centrifugal pump, it is necessary to consider parameters such as pump body material, sealing method, impeller type, etc. based on the physical and chemical properties of the medium.
3. Temperature and pressure: The working performance of centrifugal pumps may also vary at different temperatures and pressures, so the corresponding options need to be determined based on actual usage conditions when selecting. For high-temperature and high-pressure fields, it is necessary to choose the type of centrifugal pump developed to meet these requirements.
4. Motor power and speed: The motor power and speed of a centrifugal pump are factors that affect its output power and speed. Appropriate motor power and speed can improve the service life and efficiency of centrifugal pumps, and reduce energy consumption.
5. Sealing and wear resistance: The sealing and wear resistance of centrifugal pumps are important factors affecting their performance and lifespan. It is necessary to choose materials and brands that have good sealing and wear resistance, and are suitable for practical use scenarios.
   
   

Centrifugal pump is an important industrial fluid transportation equipment, and its selection process directly affects its subsequent use effect and work efficiency.