Square PTFE Gasket with Pre-Drilled Holes | CNC Machined PTFE Parts

Engineer a perfect seal with Chunhuan’s precision CNC-machined square PTFE gaskets. Designed for demanding static sealing applications, our gaskets leverage the inherent “King of Plastics” properties of Polytetrafluoroethylene to solve the most persistent sealing challenges. From aggressive chemical pipelines to sterile pharmaceutical vessels, our pre-drilled, custom-shaped gaskets deliver unmatched corrosion resistance, eliminate installation errors, and ensure long-term, maintenance-free reliability.

Key Features & Benefits

• Unmatched Chemical Resistance: Immune to virtually all aggressive media, including strong acids, strong alkalis, and organic solvents, providing a “zero-failure” seal.
• Pre-Drilled for Precision & Efficiency: Custom CNC-drilled bolt holes ensure perfect alignment, increasing installation efficiency by up to 50% and eliminating leaks from manual drilling errors.
• Extreme Temperature Stability: Perform reliably from cryogenic -200°C to continuous +260°C (short-term up to +300°C), suitable for CIP/SIP processes.
• Self-Lubricating & Non-Stick: Extremely low coefficient of friction (~0.04) reduces bolt stress loss. The non-porous, non-stick surface prevents material build-up and allows for easy cleaning, meeting strict hygiene standards (FDA / USP Class VI compliant).
• Tailored Material Solutions: Available in Pure PTFE or enhanced filled compounds (Glass Fiber, Graphite, Carbon) for specific needs like higher pressure resistance, better thermal conductivity, or static dissipation.

Technical Specifications

Applications

These versatile gaskets are the sealing solution of choice for:

• Chemical Processing: Flange seals in pipelines for acids, alkalis, and solvents.
• Pharmaceutical & Biotech: Sealing for sterile tanks, bioreactors, and autoclaves.
• Food & Beverage: Seals in mixers, vessels, and CIP systems.
• Semiconductor Manufacturing: Wet bench and etching equipment.
• General Industrial: Valve covers, pump housings, and access panels.

Why Choose Chunhuan?

• Full Customization: Get exactly what you need. We provide custom outer dimensions, thickness (0.5mm – 10mm), bolt hole patterns, and material grades.
• Engineering Support: Our technical team helps you select the optimal material and design for your specific application.
• Proven Quality & Reliability: Manufactured from high-quality PTFE to ensure consistent performance and reduce downtime.
• Global Export Standards: Securely packaged for worldwide shipping.

Ready to Spec Your Gaskets? Contact us today for a quote or to discuss your application with our experts.