Precision Carbide Seal Rings for Mechanical Seals, Pumps, and Valves
Wear-resistant tungsten carbide seal rings manufactured for demanding sealing systems that require dimensional accuracy, stable sealing faces, and dependable service life.
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Key Features & Benefits
Discover why our products are trusted by industries worldwide
High Wear Resistance
Long seal life in abrasive or particle-containing media with hardness HRA 87.0-91.5.
Precision Face Geometry
Support leakage performance and stable operation with flatness and parallelism control.
Material Choices
WC-Co for conventional wear applications; WC-Ni for corrosive media environments.
High-Speed Capability
Suitable for high-speed and high-pressure sealing systems with dimensional stability.
Custom Ring Designs
Drawing-based parts, matched pairs, and assembled seal components for specific requirements.
Multiple Structures
Flat rings, stepped rings, grooved rings, and composite assembly structures available.
Technical Specifications
Detailed parameters for your engineering requirements
| Material System | WC-Co / WC-Ni |
| Density | 13.8-14.9 g/cm³ |
| Hardness | HRA 87.0-91.5 |
| Transverse Rupture Strength | 2200-3000 MPa |
| Structure Options | Flat, Stepped, Grooved, Composite |
| Surface Condition | Precision Ground, Lapped, Polished |
Application Areas
Versatile solutions across multiple industries
Mechanical Seal Systems
Rotating and stationary seal rings in centrifugal pumps, process pumps, and industrial seal assemblies.
Compressors & Dry Gas Seals
High-speed equipment demanding controlled surface quality and reliable geometry.
Valves & Flow Equipment
Sealing interfaces where wear resistance and precise mating surfaces are required.
Chemical & Process Industries
Sealing applications involving abrasion, pressure, heat, or moderate corrosion.
Product Gallery
Explore our precision-engineered materials and components.
Key precision components for mechanical sealing systems
Our Carbide Seal Rings are engineered for mechanical seals, dry gas seals, pumps, valves, and rotating equipment operating under abrasive, high-pressure, or high-speed conditions.
Carbide Seal Rings are key precision components in mechanical seals, dry gas seals, and high-wear-resistant seal pairs, typically used as rotating rings, stationary rings, or matched seal faces.
Manufacturing & Quality Control
Our carbide seal rings are produced through controlled powder preparation, pressing, sintering, densification, precision grinding, lapping, and polishing.
- Control of seal face flatness and parallelism
- Consistency of inner diameter, outer diameter, and assembly positioning
- Surface roughness and grinding mark direction control
- Control of micro-cracks, edge chipping, and grinding burns
- Matching control with mating rings and metal seats
Selection Recommendations
Choose the right seal ring for your application:
- **High-speed seal applications**: focus on end face flatness, surface roughness, and fit precision
- **Particle-containing or slurry media**: prioritize higher wear resistance grades
- **Corrosive media or water lubrication**: consider binder phase system and thermal shock risks
RFQ Guide
For a faster quotation, please include:
1. Part drawing or ring dimensions
2. Material preference or media description
3. Seal face requirements such as flatness, roughness, or polishing level
4. Application type such as pump, valve, compressor, or dry gas seal
5. Quantity and whether matched pairs are required
6. Special assembly details such as grooves, steps, or metal seat integration
Need Carbide Seal Rings for Precision Sealing Applications?
Send us your drawings, operating conditions, and sealing requirements, and we will provide a suitable carbide ring solution.