Graphite Seal Ring for Mechanical Pump Seal
Introduction
Carbon graphite seal rings are critical components in mechanical seal systems for pumps, valves, and compressors. These rings are engineered to provide reliable sealing performance in demanding industrial environments where traditional rubber or plastic seals fail.
The inherent properties of graphite - self-lubrication, chemical resistance, and temperature stability - make it the material of choice for demanding sealing applications across oil and gas, chemical processing, and water treatment industries.
Product Features
- Self-lubricating surface: No additional lubrication required during operation
- Wide temperature range: Performs from -200C to +400C
- Chemical resistance: Resists most acids, alkalis, and organic solvents
- Low friction coefficient: Reduces energy consumption and wear
- High wear resistance: Extends service life between replacements
- Precision ground: Tight dimensional tolerances for perfect fit
- Custom designs: Various profiles and sizes available
Performance Parameters
| Property | Value |
|---|---|
| Material Grade | Resin Impregnated Carbon Graphite |
| Density | 1.75 g/cm3 |
| Hardness | 70 Shore |
| Flexural Strength | 45 MPa |
| Compressive Strength | 80 MPa |
| Porosity | Less than 0.5% (impregnated) |
| Thermal Conductivity | 80 W/m-K |
| Max Operating Temp | 400C (oxidizing atmosphere) |
| Shaft Diameter Range | 10mm - 200mm |
| Surface Finish | Ra 0.2 - 0.8 um |
Industry Applications
- Centrifugal pumps in chemical plants
- Oil refinery process pumps
- Water treatment equipment
- Food and beverage processing machinery
- Pharmaceutical manufacturing pumps
Why Source From Jincheng?
- 15+ years manufacturing experience in graphite sealing materials
- In-house precision grinding capability
- Strict quality control with 100% inspection
- Custom profiles per customer drawings
- Competitive factory-direct pricing
- Fast delivery: 7-10 days for standard sizes
- Exported to 30+ countries worldwide
- Responsive technical support team
Questions and Answers
Q: How long do graphite seal rings last?
A: With proper installation and operating conditions, graphite seal rings typically last 1-3 years depending on the application, pressure, and speed.
Q: Can you make custom size seal rings?
A: Yes, we manufacture custom sizes and profiles based on customer drawings or samples. Minimum order quantity applies for custom orders.
Q: What is the difference between carbon graphite and resin impregnated graphite?
A: Resin impregnated graphite has resin forced into the pores, making it impermeable to fluids and suitable for sealing liquid applications.
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