Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of civil aircraft air conditioning system compressor rubber seal in China, also supports customized service. Please feel free to buy high quality civil aircraft air conditioning system compressor rubber seal for sale here from our factory.
Civil aircraft air conditioning system compressor rubber seal
- Function: The compressor is the equipment responsible for compressing the refrigerant in the air conditioning system. It pumps the low-pressure refrigerant gas into the compression chamber and pressurizes it, and then pushes the high-pressure refrigerant gas to the condenser. The main function of the compressor rubber seal is to prevent refrigerant from leaking at the air inlet and exhaust ports of the compressor, ensuring the normal operation and refrigeration effect of the compressor.
- Location: The compressor rubber seals are located at the intake and exhaust ports of the compressor. The air inlet is where the refrigerant gas enters the compressor, and the exhaust port is where the high-pressure refrigerant gas leaves the compressor. Seals are usually installed at the junction of the air inlet and exhaust port to ensure the effectiveness of the seal.
- Characteristics: Compressor rubber seals need to have certain characteristics to adapt to the working environment and requirements of the compressor.
Advantage
- High temperature resistance: Since the compressor generates high temperatures when working, seals need to be able to withstand high temperature environments to maintain their sealing performance and physical properties.
- Chemical Resistance: Seals need to resist refrigerants and other chemicals to maintain their durability and long life.
- Wear resistance: When the compressor is working, the seal will have friction with the moving metal surface, so it needs to have a certain wear resistance to maintain the effectiveness of the seal.
- Elasticity and resilience: Seals need to have sufficient elasticity and resilience to ensure that they can effectively maintain a sealing state under different working conditions.
Material selection
Compressor rubber seals are usually made of special rubber materials, such as fluorine rubber (FKM) or nitrile rubber (NBR). These materials offer excellent resistance to temperatures, chemicals and abrasion, making them suitable for use in compressor operating environments.
Technical data
| NBR Standard Physical properties Refers | ||||
| Property | Test standard | Value | Unit | |
| Hardness | ASTM D2240 | 72＋/-5 | Shore A | |
| Elongation at break | ASTM D412 | 295 | % | |
| Tensile strength | ASTM D412 | 19 | Mpa | |
| 100% Modulus | ASTM D412 | 4.35 | Mpa | |
| Compression set-24 hours at 100 ℃ Slab | ASTM D395 | 9.05 | % | |
| Ageing properties | ||||
| Property | Test standard | Value | Unit | |
| Heating ageing-72 hours at 100 ℃ | ASTM D573 | |||
| Hardness change | 1.9 | Shore A | ||
| Elongation at break change | -21 | % | ||
| Tensile strength change | -7 | % | ||
| Volume change | 0 | % | ||
| Aging water-166hours at 100 ℃ | ASTM D471 | |||
| Hardness change | -1.9 | Shore A | ||
| Elongation at break change | -10 | % | ||
| Tensile strength change | -10 | % | ||
| Volume change | 4.35 | % | ||
In short, compressor rubber seals play a key role in civil aircraft air conditioning systems, ensuring the sealing performance of the compressor and preventing refrigerant leakage, thereby maintaining the normal operation and cooling effect of the system. They need to be resistant to high temperatures, chemicals and abrasion, and be made from the right rubber material.
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