Stainless steel multistage pumps require maintenance, making it crucial to understand the key components and techniques. Without proper maintenance knowledge, damage to the pump can occur. Let's follow the editor to explore the main maintenance aspects of stainless steel multistage pumps.

1. Roller Bearings: Replacement is necessary when the bearing wears to a certain extent after the pump has been in operation for a prolonged period.

2. Front and Rear Sealing Rings: Replacement is required when the sealing rings wear to a certain extent.

3. Mechanical Seals: Generally, mechanical seals should not be disassembled for inspection unless there is no leakage. If there is a severe leakage at the lower end of the bearing housing, the mechanical seal should be disassembled and inspected. When installing or removing mechanical seals, they must be handled gently, ensuring the cleanliness of the mating surfaces, protecting the mirror surfaces of the static and dynamic rings, and strictly prohibiting any striking or collision. The main cause of leakage due to mechanical seals is the roughening of the friction pair mirror surfaces. The repair method involves grinding the friction pair face to restore the mirror surface. Another cause of leakage in mechanical seals is the "O" ring...Improper installation or deformation and aging of the rubber seal (or cushion). At this point, it is necessary to adjust or replace the "O" ring.Reassemble the O-ring.