language

News

News And Information

Home page

2021

Do you know the replacement of water pump seal?

Before the installation of water pump seal, anhydrous alcohol should be used to clean the contact surface related to the analysis of each component. During installation and construction, it should be kept clean. The seal of dynamic and static rings and auxiliary systems should be free of impurities and dust. Clean engine oil or turbine oil should be applied to the surface of the moving and static rings.

Author:

　　Water pump sealBefore installation, the contact surface related to the analysis of each component should be cleaned with anhydrous alcohol, and the installation and construction should be kept clean, and the sealing of the dynamic and static ring and auxiliary system should be free of impurities and dust. Clean engine oil or turbine oil should be applied to the surface of the moving and static rings.

Check the clearance between the cover and the outer diameter of the shaft or sleeve to ensure that the circumference is even. Use a feeler gauge to check that the tolerance of each point is not more than 0.10mm. When using a single spring, pay attention to the rotation direction of the spring. The rotation direction of the spring should be the same as the rotation direction of the shaft. Opposite.

The retaining ring is installed to be flexible and can automatically rebound behind the spring of the ring. The static ring sealing ring can be sleeved on the back of the static ring and then installed in the sealed end cover. Pay attention to protect the static ring section, ensure the perpendicularity between the static ring section and the center line of the end cover, and align the anti-rotation groove on the back of the static ring with the anti-rotation pin to prevent us from touching.

Installation tools are not allowed to directly knock the seal. If necessary, tools must be used to avoid damage to the water pump seal. Whether all sealing rings should be coated with soap and water and other lubricants during assembly, which can effectively avoid us in the assembly and production process Damage the rubber ring. The sealing surface of the dynamic and static ring is coated with grease to prevent the sealing surface of the dynamic and static ring from wearing before the water pump starts.

When assembling the water pump sealing floating ring, be careful not to touch the floating ring spring, so as not to affect the floating performance of the floating ring. After the floating ring is assembled, you can gently press the floating ring to judge whether its performance is good. Install the water pump seal with care to prevent damage to the seal. When installing, the sealing cavity should be scrubbed clean. When fastening the mechanical gland, the fastening bolts should be evenly stressed to prevent uneven damage and mechanical equipment sealing. After the overall design and assembly of the quick-fitting mechanical seal is completed, don't forget to radially move the positioning plate away from the shaft, and the position is not fixed.

Key words:

Water pump seal