The High-Purity Expanded Graphite Rings Manufacturer in China specializes in producing premium expanded graphite tape tailored for demanding industrial valve applications. Made from 100% high-purity expanded graphite, this material is binder-free, ensuring exceptional chemical stability, thermal resistance, and long-lasting sealing performance even in the harshest operating environments.
Engineered for high-pressure and high-temperature applications, the expanded graphite tape is suitable for use in valve stem packing, bonnet sealing, and static gasket formation across industries such as oil and gas, petrochemical, power generation, and chemical processing.
Product Specifications:
Material: High-purity expanded graphite (no binders or fillers)
Dimensions: 12.5–45 mm width × 0.5 mm thickness
Maximum Pressure: Up to 600 bar
Temperature Range: –200°C to +650°C (oxidizing atmosphere) / up to +3000°C (inert atmosphere)
Friction Coefficient: Extremely low, ensuring smooth valve operation and reduced stem wear
Key Features and Advantages:
Excellent Sealing Integrity: Maintains tight sealing under extreme pressure and temperature fluctuations.
Superior Chemical Resistance: Inert to most chemicals, acids, and solvents.
Low Friction, High Flexibility: Reduces operational torque and extends valve service life.
No Aging or Hardening: Ensures long-term performance and minimal maintenance.
Customizable: Available in various widths, densities, and forms (rings, tapes, or preformed packing sets).
With its combination of flexibility, durability, and stability, the high-purity expanded graphite tape from this manufacturer provides a reliable, high-efficiency sealing solution for modern industrial valves and high-pressure systems.
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