Atlas Copco O-ring 0663713800
Their specific functions in air compressors are mainly reflected in the following aspects:
1. Prevent gas leakage and ensure efficiency
When the air compressor is working, high-pressure air is formed inside the cylinder. O-rings are installed at positions such as pistons, valves, and flange connections, and through their own elastic compression deformation, they fill the small gaps between components, thereby:
Prevent internal compressed gas leakage and ensure that the air compressor can reach the preset pressure value.
Maintain volumetric efficiency, reduce energy loss, and make the machine work more efficiently.
2. Prevent liquid leakage and keep the system clean
Many air compressors, such as screw air compressors, require lubricating oil for cooling, lubrication, and sealing during operation. O-rings are used in oil systems, oil separators, oil coolers, and other parts, and their function is to:
Prevent lubricating oil from leaking outwards and avoid contaminating equipment and the surrounding environment.
Prevent external impurities (such as dust and water vapor) from entering the interior of the machine, and protect precision internal parts (such as screws and bearings) from damage.
3. Achieve reliable sealing under different working conditions
O-ring can adapt to various complex working conditions inside the air compressor according to its material and installation position:
Static seal: used to fix the connection between two components, such as pipeline interfaces, end caps, and the connection between the casing. This is the most common application form of O-ring.
Dynamic seal: used for sealing between components with relative motion, such as the piston and cylinder wall in reciprocating air compressors. This working condition requires higher wear resistance and extrusion resistance of O-rings.
Matching of materials and working conditions
The O-ring of an air compressor is usually made of rubber material that is resistant to oil and high temperature, such as:
Nitrile rubber (NBR): the most commonly used, cost-effective, and has good resistance to mineral oil and compressed gas.
Fluororubber (FKM): Suitable for harsh working conditions with higher temperatures, pressures, or special chemical media.
In summary, O-rings are indispensable small parts in air compressors. Although they may not be eye-catching, they directly affect the sealing performance and service life of the entire machine. 
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In order to ensure the normal operation of the air compressor and its rear equipment, in addition to regular maintenance (replacing consumables), daily spot in
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