Product Overview
Carbon graphite seal rings are critical components in mechanical seals for pumps, compressors, and rotating equipment. With excellent self-lubricating properties, wear resistance, and chemical compatibility, graphite seal faces provide reliable and leak-free operation in a wide range of fluid handling applications, from water pumps to chemical processing equipment.
Key Features
- Excellent self-lubricating properties
- Low friction and long wear life
- Good chemical resistance
- High dimensional stability
- Available in various carbon graphite grades
- Precision lapped seal faces
- Custom sizes and configurations
Technical Specifications
| Parameter | Unit | Resin Impregnated | Metal Impregnated |
|---|---|---|---|
| Material | - | Carbon Graphite | Carbon Graphite |
| Bulk Density | g/cm³ | 1.75 | 1.80 |
| Shore Hardness | - | 80 | 85 |
| Flexural Strength | MPa | 55 | 65 |
| Max PV Value | MPa·m/s | 10 | 15 |
| Max Operating Temp | °C | 400 (oxidizing) | 500 (oxidizing) |
| Surface Finish (Seal Face) | Ra μm | ≤0.05 | ≤0.05 |
Applications
- Centrifugal pump mechanical seals
- Rotary shaft seals
- Compressor seal rings
- Agitator and mixer seals
- Chemical process pumps
- Water and wastewater pumps
- Oil and gas equipment seals
Why Choose Jincheng Graphite Seal Rings?
We manufacture precision carbon graphite seal rings and seal faces for mechanical seal manufacturers and pump repair companies. Our seal rings are available in resin-impregnated grades for general service or metal-impregnated grades for high temperature and high pressure applications. All seal faces are precision lapped to the required flatness for reliable sealing performance.
FAQ
Q: What is the difference between resin-impregnated and metal-impregnated graphite seals?
A: Resin-impregnated graphite is the standard grade for most sealing applications, providing good chemical resistance and self-lubrication. Metal-impregnated (typically antimony or copper) graphite offers higher temperature and pressure capability, making it suitable for demanding high-performance sealing applications.
Q: Can you produce custom seal ring sizes?
A: Yes, we specialize in custom graphite seal rings and seal faces. Please provide your seal ring drawings or specifications including inner diameter, outer diameter, thickness, and any special features. We can produce both rotating and stationary seal faces.
Q: What is the typical surface finish for seal faces?
A: Mechanical seal faces require extremely flat and smooth surfaces, typically Ra 0.025-0.05 μm with flatness of 2-3 light bands. Our precision lapping process ensures that every seal face meets the strict flatness requirements for reliable sealing performance.
Hot Tags: graphite seal ring, mechanical seal, pump seal, carbon graphite, seal face, shaft seal, centrifugal pump, compressor seal, graphite guide ring, graphite packing rings, graphite ring for high temperature furnace, graphite ring for marine engine, graphite ring stock, graphite ring valve system
