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A Carbon Seal Ring — also known as a carbon face seal or mechanical carbon seal — is a high-performance sealing component used in rotating machinery to prevent leakage of fluids or gases between rotating and stationary parts.
Commonly utilized in pumps, compressors, mixers, and industrial equipment where high-performance, durable, and efficient sealing solutions are critical to operation.
Consists of a stationary ring mounted in the housing and a rotating ring attached to the shaft.
When operating, the rotating ring contacts the stationary ring, creating a tight interface between the two surfaces.
The interface forms a barrier preventing fluid or gas leakage through precision face flatness, applied pressure, and carbon's self-lubricating properties.
Reliable, leak-free performance ensuring proper functioning of machinery.
Inherent lubricating properties reduce external lubrication needs and enhance wear resistance.
Suitable for applications involving hot fluids or gases at extreme temperatures.
Low coefficient of friction ensures minimal wear on seal faces during operation.
⚠ Carbon seal rings can be sensitive to certain chemicals and abrasive substances, potentially limiting their use in some applications. Improper installation or misalignment can lead to premature wear and reduced sealing performance.
| Parameter | Unit | Grade 99 | Grade 97 |
|---|---|---|---|
| Carbon Content | % | 99 | 97 |
| Bulk Density | g/cm³ | 1.75 | 1.70 |
| Hardness (Shore) | HS | 80–90 | 75–85 |
| Max Operating Temp | °C | 450 | 400 |
| Friction Coefficient | — | 0.05–0.10 | 0.08–0.15 |
| Compressive Strength | MPa | 140–160 | 100–130 |
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