The function and principle of the sealing and lubrication components of a high corrosion-resistant and wear-resistant multi-stage pump

Category: Water pump knowledge

2025-05-22

High corrosion-resistant and wear-resistant multi-stage pumps are key equipment widely used in industrial, agricultural, and chemical industries. The function and principle of their sealing and lubrication components are crucial for ensuring the normal operation and extending the service life of multi-stage pumps.

I. Function and Principle of Sealing Components

The main function of sealing components is to prevent leakage of the medium inside the pump and maintain normal pump operation. Multi-stage pumps usually use mechanical seals, the principle of which is achieved through the close cooperation of dynamic and static ring surfaces. Mechanical seals have advantages such as reliable sealing performance, long life, low power consumption, and low leakage.

The structure of a mechanical seal includes a dynamic ring, a static ring, a spring loading device, and auxiliary sealing rings. The friction surfaces between the dynamic and static rings are made of special materials with extremely high corrosion and wear resistance. During operation, the spring loading device maintains a certain clamping force between the dynamic and static ring surfaces to prevent medium leakage. The auxiliary sealing ring prevents leakage from small gaps.

II. Function and Principle of Lubrication Components

The main function of lubrication components is to reduce friction and wear of sealing components, reduce energy consumption, and extend service life. The lubrication components of multi-stage pumps usually use oil lubrication or grease lubrication.

Oil lubrication forms an oil film between the friction surfaces through lubricating oil, maintaining a certain distance between the friction surfaces to reduce friction and wear. At the same time, lubricating oil also plays a role in cooling, rust prevention, and cleaning.

Grease lubrication forms a lubricating film between the friction surfaces through the viscosity of the grease. Grease has a longer service life and better water resistance, suitable for some harsh working environments.

In addition, multi-stage pumps are equipped with a dedicated lubrication system. By regularly injecting lubricating oil or grease, the normal lubrication of each lubrication point is ensured. At the same time, the lubrication system can also monitor the pressure and temperature of the lubricating oil or grease in real time to ensure the safe operation of the multi-stage pump.

In summary, the sealing and lubrication components of high corrosion-resistant and wear-resistant multi-stage pumps are key parts to ensure the normal operation of multi-stage pumps. Through reasonable structural design and the selection of appropriate sealing and lubrication methods, medium leakage can be effectively prevented, friction and wear can be reduced, energy consumption can be reduced, and service life can be extended. Therefore, for the maintenance and management of multi-stage pumps, special attention should be paid to the inspection and maintenance of sealing and lubrication components.

Previous: The role and principle of pipeline connection and accessories for high corrosion-resistant and wear-resistant multi-stage pumps

Next: The function and principle of the high corrosion-resistant and wear-resistant multi-stage pump drive and control system

Contact Us

Free Hotline:0086-13307481676

Fixed telephone:0086-13307481676      

Mobile:0086-13307481676(WeChat)

E-mail:sales@sanchangpump.com