AS-C474 cartridge seal

AS-C474 cartridge seal is customized single seal  with multiple spring   that  made as per client drawing.

  

About us：

    

Background：

Common faults and solutions of mechanical seals
Mechanical seal is an important component of rotating equipment used to prevent liquid or gas leakage from the equipment. However, during use, mechanical seals may experience various malfunctions that can affect the normal operation of the equipment. The following are some common faults of mechanical seals and their corresponding solutions.
Common faults and solutions
1. Mechanical seal leakage
reason:
Improper installation, such as damage to the sealing end face, incomplete cleaning, loose positioning screws, and insufficient tightness of the pressure cover.
Periodic vibration or excessive axial movement.
Insufficient clamping and low compression of the sealing ring assembly.
Lack of lubrication leads to increased friction and wear.
Corrosion of sealing materials by corrosive media.
resolvent:
Carefully install to ensure that the sealing surface is clean and undamaged, and tighten the gland appropriately.
Control the pump shaft displacement within 0.25mm to reduce vibration and displacement.
Ensure that the sealing ring is installed correctly and reaches sufficient compression capacity.
Strengthen lubrication, regularly replace lubricating oil, and maintain good lubrication of the sealing surface.
Select appropriate sealing materials based on the characteristics of the medium to enhance corrosion resistance.
2. Mechanical seal vibration and heating
reason:
The contact gap is too small, resulting in an increase of 4 in friction.
Uneven end faces or improper material selection can lead to high temperatures and corrosion.
resolvent:
Adjust the internal diameter or external rotation diameter of the sealing chamber of the rotating equipment to ensure that the gap is greater than 0.75mm.
Improve the sealing contact material to enhance its high temperature and corrosion resistance.
3. Mechanical seal wear
reason:
Friction generated by high-speed rotation.
In a dry state, wear intensifies by 3.
resolvent:
Choose wear-resistant sealing materials, such as a combination of hard alloy and hard alloy or silicon carbide.
Maintain proper lubrication and regularly replace lubricating oil.
4. Mechanical seal damage
reason:
Installation is too tight or too loose, causing wear on the surface of the moving and stationary rings.
Poor water quality, containing particulate matter, leading to wear and tear.
Running without water resulted in dry grinding damage.
The phenomenon of cavitation causes the mechanical seal to operate in a water deficient state.
resolvent:
Adjust the installation height to ensure that the spring has sufficient tension and reset space.
Improve water quality or medium conditions, and replace mechanical seal 1 if necessary.
Exclude air from the pipeline and pump chamber to prevent dry grinding damage.
Install an automatic exhaust valve to prevent cavitation phenomenon.
conclusion
There are various types of mechanical seal failures, but by correctly installing, maintaining, and selecting appropriate materials, the occurrence of failures can be effectively reduced. Regular inspection and maintenance are crucial for extending the service life of mechanical seals.