How to deal with failure or deformation of rubber sealing ring?

According to the actual situation of the failure form of the rubber seal ring, DLSEALS will tell you, such as the failure of the auxiliary rubber seal ring, the failure of the spring of the rubber buffer seal ring compensation mechanism, the reasons for the breakage of the dynamic seal ring of the rubber seal ring, the damage to the end face of the moving ring of the rubber seal ring, Improper maintenance or improper operation of the rubber sealing ring causes seal damage, etc. And the following improvement measures have been taken.

1. What are the improvement measures for rubber seals that cannot withstand high temperatures?

For rubber sealing rings that cannot withstand high temperatures, the sealing material is changed to a sealing ring made of perfluoroelastomer sealing material. It can withstand high temperatures up to 200 degrees Celsius and has excellent acid and alkali resistance and oil resistance, that is, poor cooling effect and long service life. . In actual use, the service life of O-rings made of imported perfluoroelastomer sealing materials has been greatly improved. The only drawback is that it’s the most expensive! The seals made of imported fluororubber sealing rings have excellent quality and performance.

2. Improve the spring-clogging rubber seal?

According to the actual conditions on site, engineers may lose the ability to compensate after the sealing spring is easily clogged. For example, after pipeline modification, if the rubber sealing ring spring is seriously clogged later, the rubber sealing ring structure can be improved, that is, the rubber sealing ring structure is changed to a spring peripheral type, thereby solving the improvement problem that the rubber sealing ring spring is easily clogged and cannot be compensated.

3. Improve the flushing method of rubber sealing ring?

The flushing method is changed from automatic flushing to external flushing sealing ring method. Since the water in the device system contains a lot of suspended particulate matter, the sealing ring fluid is introduced from the outside and injected into the sealing ring cavity to improve the working environment (occasion) of the sealing ring. After the overall design of the sealing ring company, the original pump self-flushing water was changed to pure desalted water for external flushing. After the high-pressure pump inside the system is pressurized, it enters the sealing ring cavity and is cooled and cleaned.

Because there is concern that the presence of small solid particles will cause long-term accumulation, and then damage to the mechanical seal will occur. Therefore, two sets of filters are added to the machine seal flushing water main pipe, and the filters are switched and cleaned from time to time to ensure water quality. The above are the improvement measures for the rubber seal ring flushing method.

4. Measures to improve rubber sealing ring sealing materials?

Replace the sealing material (material). Since the medium (working environment and occasion) contains suspended particles, dynamic sealing rings generally use high-hardness sealing materials (materials). Cobalt tungsten carbide carbide sealing materials are commonly used, but the sealing material bonding machine is corrosion-resistant. It has poor performance and is generally not suitable for abrasive working environments and occasions. Due to the complexity of the unit medium composition and its corrosive components, silicon carbide is selected for the dynamic sealing ring. Silicon carbide has excellent physical, chemical and thermal properties, high hardness and good corrosion resistance. The above are the improvements and measures for rubber sealing ring sealing materials.

[DLSEALS kindly Reminder] Sealing issues? Turn to DLSEALS! As a sealing component manufacturer, we specialize in customizing sealing components, providing a full range of services from design, research and development, production, testing, and more. If you have more information you'd like to know, feel free to contact us directly. DLSEALS's product experts are dedicated to serving you!