Graphite Seal Ring for Vacuum Pump
Product Overview
Jincheng graphite seal rings for vacuum pumps are precision-machined carbon-graphite components designed for sealing rotary vane, piston, and Roots vacuum pumps. These rings provide excellent wear resistance, low friction, and reliable sealing performance for vacuum and low-pressure applications.
Our vacuum pump seal rings are manufactured from high-quality resin-impregnated graphite that provides excellent sealing properties and long service life. Custom sizes and configurations are available to match different vacuum pump models and seal designs.
Key Features
- Excellent sealing performance for maintaining vacuum levels in pump systems
- Low friction and wear for extended seal ring life
- Self-lubricating properties for dry running capability
- Chemical resistance against pump oils and process gases
- High temperature stability for operation at elevated pump temperatures
- Precision machined for accurate fit in pump seal chambers
- Custom sizes available for various vacuum pump models
- Cost-effective compared to OEM seal replacements
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Resin-impregnated carbon graphite |
| Density | 1.60 - 1.75 g/cm3 |
| Shore Hardness | 60 - 80 HS |
| Compressive Strength | 80 - 120 MPa |
| Bending Strength | 40 - 60 MPa |
| Max Working Temperature | 300°C (in air), 400°C (in vacuum) |
| Maximum Pressure | 1.0 MPa |
| Surface Roughness | Ra 0.8 - 1.6 um |
| Inner Diameter | Custom per pump model |
| Outer Diameter | Custom per pump model |
Applications
- Rotary vane vacuum pumps for industrial and laboratory vacuum systems
- Roots vacuum pumps for high-vacuum and ultra-high-vacuum applications
- Piston vacuum pumps for roughing and backing pump applications
- Diaphragm vacuum pumps for oil-free vacuum applications
- Turbomolecular pumps for high-vacuum backing and sealing
- Vacuum pump repair and maintenance for pump service companies
Why Choose Jincheng Graphite Seal Rings?
- Vacuum-grade graphite materials optimized for pump sealing applications
- Precision CNC machining with tight tolerances for perfect pump fit
- Experience with major pump brands including Edwards, Leybold, and Busch
- Custom seal ring design based on your pump model or existing seal dimensions
- Competitive pricing as a direct graphite component manufacturer
- Fast delivery - standard seal rings within 3 days, custom within 1 week
- Technical support for seal material selection and pump repair optimization
- Global shipping to pump repair shops and industrial users worldwide
Frequently Asked Questions
Q1: How long do vacuum pump seal rings last?
A: Seal ring life depends on pump operating conditions, vacuum level, and process gases. Under typical industrial vacuum pump conditions, seal rings last 6-12 months before needing replacement.
Q2: Can you manufacture seal rings based on my pump model?
A: Yes, we manufacture custom seal rings based on your pump model or existing seal dimensions. Please provide your pump model or seal dimensions for quotation.
Q3: What is the difference between resin-impregnated and metal-impregnated graphite?
A: Resin-impregnated graphite is better for general vacuum service and chemical resistance. Metal-impregnated (antimony or babbitt) graphite is better for high-pressure and high-temperature applications.
Q4: Do you offer seal ring sets for complete pump rebuilds?
A: Yes, we can provide complete seal ring sets for various pump models. Please specify your pump model and the seal rings needed for a complete rebuild kit quotation.
Hot Tags: graphite seal ring, vacuum pump seal, graphite ring, mechanical seal ring, carbon seal ring, graphite ring, graphite ring blank, graphite ring for industrial machinery, graphite ring vacuum use, graphite support ring, rigid graphite ring
