Industrial Custom Thickness Graphite Gaskets Designed for Deep Cooling High Vacuum Working Conditions with Outstanding High Temperature Resistance Performance

Products Description

Product Overview

Core Performance Advantages

Excellent Thermal & Vacuum Stability

• Wide operating temperature range: -200°C to 600°C, maintaining stable performance in deep cooling and extreme high-temperature environments.
• Low thermal expansion coefficient ensures minimal dimensional change under rapid temperature fluctuations.
• Low outgassing property and high structural stability ideal for long-term high vacuum service.

Strong Chemical & Medium Compatibility

• High resistance to acids, alkalis, hydrocarbons, oils and other corrosive media commonly found in industrial processes.
• Ultra-low sulfur and chlorine content effectively prevents alloy corrosion and meets strict purity requirements.
• Non-reactive and non-contaminating, suitable for high-purity process systems.

Superior Mechanical & Sealing Properties

• Balanced compressibility and recovery rate for tight sealing even on imperfect flange surfaces.
• High impermeability effectively blocks gas, liquid and slurry leakage.
• Self-lubricating characteristics reduce friction and wear in valve stem and dynamic sealing parts.

Customizable Specifications

Product Forms & Dimensions

• Rolls: Width 1000mm / 1500mm; Length 30m / 50m / 80m
• Sheets: 1000mm × 1500mm
• Thickness: 0.15mm (precision seals) to 5mm (heavy-duty gaskets)
• Density: 0.8–1.25 g/cm³ adjustable according to pressure and compressibility demands

Precision Tolerance Indicators

Basic Material Performance Data

Grade Classification & Mechanical Properties (JB/T 53392-1999)

Typical Industrial Applications

Valve Sealing Systems

• Suitable for gate valves, globe valves, butterfly valves and control valves.
• Metal-reinforced composite structure available for high-pressure API 6D applications.
• Provides stable dynamic sealing under deep cooling and high vacuum conditions.

Pipeline Flange Seals

• Precision laser cutting compatible with ASME B16.5 and custom flange sizes.
• Ensures leak-free connections in process pipelines, vacuum equipment and refining units.
• Corrugated and reinforced designs improve sealing on uneven surfaces.

High Vacuum & Deep Cooling Equipment

• Ideal for vacuum chambers, low-temperature pipelines, pressure vessels and reactor sealing.
• Widely used in petrochemical plants, natural gas facilities and general industrial processing.

Compliance & Quality Assurance

• Complies with API 607 fire safety standards for oil and hydrocarbon equipment.
• Meets ASME BPVC Section VIII requirements for pressure vessel sealing.
• Tested in accordance with ASTM F137, ASTM F38 and NACE TM0177 standards.
• Produced under the grading specification JB/T 53392-1999 for graphite sealing materials.

Procurement & Service Terms

• We mainly serve factory and enterprise bulk procurement customers with customized production support.
• Individual buyers are also accepted; however, shipping fees shall be borne by the purchaser.
• All products are shipped only from mainland China with stable logistics and packaging.
• Professional technical support including FEA simulation and material selection guidance is available.