Carbide Seal Rings

Retop manufactures precision tungsten carbide seal rings designed for superior wear, corrosion, and thermal resistance in mechanical sealing systems across oil & gas, chemical, and pump industries.

Product Description

Tungsten carbide seal rings are high-performance sealing components engineered to withstand harsh operating environments involving high pressure, corrosive fluids, and abrasive media. Manufactured from WC-Co or WC-Ni composites, these rings provide unmatched hardness, dimensional stability, and long service life in mechanical seal assemblies. Retop offers both stationary and rotating ring types, with lapped sealing surfaces for minimal leakage and low friction performance.

Carbide seal rings are widely used in mechanical seals for pumps, compressors, reactors, and rotating equipment across oil & gas, petrochemical, chemical processing, mining, and power generation industries. They are essential in slurry pumps, chemical dosing systems, high-speed shafts, and fluid-handling equipment requiring zero-leakage and high reliability under severe wear and thermal shock conditions.

Features

  • High Hardness & Compressive Strength
    Maintains structure under extreme load and abrasive contact.

  • Excellent Surface Flatness
    Lapped sealing surfaces ensure ultra-low leakage rates in mechanical seals.

  • Superior Chemical Stability
    Resistant to acids, alkalis, and corrosive gases.

  • Customizable Shapes & Dimensions
    Available in O-ring, V-ring, flat-ring, or complex forms per customer drawings.

  • Operational Stability Under Thermal Shock
    Ideal for rapid temperature fluctuation in industrial systems.

Specifications

Specification Value
Material Tungsten Carbide (WC+Co / WC+Ni)
Hardness (HRA) 89 – 93
Density 13.9 – 14.9 g/cm³
Flatness ≤ 0.0005 mm
Working Pressure Up to 12 MPa
Temperature Resistance Up to 500°C
Custom Geometry O-ring, V-ring, L-ring, Step-ring, etc.

Why Choose Retop as Your Supplier?

Retop combines over 14 years of expertise in tungsten carbide manufacturing with precision CNC grinding and ISO-certified quality control to deliver carbide seal rings of exceptional performance. We offer full customization per your design drawings, fast prototyping, and stable delivery—ensuring our products meet the sealing challenges of even the most demanding industrial environments. Partner with Retop to achieve lower leakage, longer uptime, and cost-effective sealing solutions.

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