The stainless steel self-priming pump is a common pump valve with simple and reliable structure and durability. However, quality products and equipment also require regular maintenance. This not only avoids some accidents, but also greatly increases the service life of pump and valve products. Under normal conditions of the pump, it is generally not necessary to open the maintenance frequently. General maintenance of the pump should pay attention to several main parts:
1. Rolling bearing: When the bearing wears to a certain extent after long-term operation, it must be replaced.
2. Front seal ring and rear seal ring: When the seal ring wears to a certain extent, it must be replaced.
3, mechanical seal: mechanical seal in the case of no leakage, generally should not be opened for inspection. If a serious leak occurs at the lower end of the bearing body, the mechanical seal should be disassembled. When assembling and disassembling the mechanical seal, it must be taken lightly, pay attention to the cleaning of the mating surface, protect the mirror surface of the static ring and the moving ring, and it is strictly forbidden to strike. The reason for the leakage due to the mechanical seal is mainly due to the friction of the mirror surface. The repair method: the end surface of the friction pair can be ground to restore the mirror surface. Another cause of mechanical seal leakage is the improper installation of the O-ring or the aging of the O-ring. At this point, the O-ring needs to be replaced for reassembly.
