The 45 degree Angle seal ring is a specially designed sealing element, and its cross section usually has a 45 degree bevel structure. This design allows it to better fit the sealing surface during installation, providing excellent sealing performance, especially for dynamic sealing or where compensation for installation deviation is required.
1. Characteristics and advantages
45 degree Angle design
The angular structure makes the sealing ring easier to align during installation, reducing installation stress and reducing the risk of leakage due to improper installation.
In a dynamic seal, the 45 degree Angle can effectively distribute pressure, reduce friction and wear, and extend the service life of the seal ring.
Excellent sealing performance
The sealing ring material is usually rubber (such as NBR, EPDM, FKM, etc.) or plastic (such as PTFE), which has good elasticity and chemical resistance.
The 45 degree Angle design increases the sealing contact area and improves the reliability and stability of the seal.
Ease of installation
The bevel design makes it easier for the sealing ring to enter the sealing slot during installation, reducing the installation difficulty, especially for space-limited occasions.
Offset installation deviation
When there is slight unbalance or installation deviation on the sealing surface, the 45 degree Angle sealing ring can be automatically compensated by elastic deformation to ensure the sealing effect.
2. Application field
Hydraulic and pneumatic systems: piston seals and rod seals for hydraulic cylinders, cylinders, valves and other equipment.
Automotive industry: Used in the sealing of engine, transmission, brake system and other key components.
Aerospace: Reliable sealing solutions in extreme conditions such as high temperature, high pressure and high speed.
Chemical and petroleum: suitable for corrosive media and high pressure environment of pipeline, valve seal.
General machinery: used for pump, compressor, reducer and other equipment shaft seal and end seal.
Third, material selection
NBR (nitrile butadiene rubber) : suitable for general hydraulic oil, water, air and other media, excellent oil resistance.
EPDM (EPDM) : high temperature resistance, ozone resistance, aging resistance, suitable for hot water, steam and other media.
FKM (fluorine rubber) : high temperature resistance, chemical corrosion resistance, suitable for fuel oil, lubricating oil, strong acid and alkali and other media.
PTFE (polytetrafluoroethylene) : high temperature resistance, corrosion resistance, low friction coefficient, suitable for special conditions.
Fourth, installation precautions
Sealing groove size
Ensure that the width, depth, and radius of the sealing groove meet the design requirements of the sealing ring to prevent the sealing ring from being squeezed during installation.
Mounting direction
The 45 degree sealing ring usually has a clear installation direction and needs to be correctly installed according to the manufacturer's instructions to ensure the sealing effect.
oiling
Before installation, an appropriate amount of lubricant (such as silicone oil) can be applied on the surface of the sealing ring to reduce installation friction and avoid damage to the sealing ring.
Avoid distortion
When installing, use even force to avoid twisting or turning the sealing ring and ensure that the sealing ring is evenly fitted to the sealing surface.
5. Common problems and solutions
Leakage problem
Possible causes: The sealing ring is damaged, improper installation, the sealing groove size is inconsistent, and the medium pressure is too high.
Solution: Check the seal status, reinstall or replace the seal, adjust the seal groove size, or choose a higher pressure grade seal.
Wear problem
Possible causes: the medium contains particles, the sealing ring material is not wear-resistant, and the installation stress is too large.
Solutions: Choose a seal with a wear-resistant material (such as polyurethane), add a filter to the media, or optimize the installation process.
Aging problem
Possible causes: medium corrosion, high temperature environment, long-term use.
Solution: Choose a seal ring with an aging resistant material (such as fluoroprene), check and replace the aging seal ring regularly.
With its unique design and excellent performance, the 45 degree Angle sealing ring has been widely used in the industrial field. Choosing the right materials, correct installation methods and regular maintenance are key to ensuring its long-term reliable operation.
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