PTFE gaskets are widely used in industrial applications due to their exceptional chemical resistance, high-temperature tolerance, and low friction properties. They adhere to several international standards, including EN1514-1, DIN2690, and ASME B16.20, ensuring compatibility and performance across various flange systems. These gaskets are available in standard sizes ranging from DN15 to DN2000, with options for custom dimensions. PTFE gaskets are rigid and require consistent pressure for effective sealing, making them unsuitable for reuse after removal. They are also FDA-compliant, making them safe for food and pharmaceutical industries.
Key Points Explained:
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International Standards for PTFE Gaskets
- EN1514-1: A European standard specifying dimensions and tolerances for non-metallic flat gaskets, including ptfe gaskets for flanges.
- DIN2690: A German standard for PTFE envelope gaskets, ensuring compatibility with DIN flange systems.
- ASME B16.20: An American standard covering metallic and non-metallic gaskets for pipe flanges, including PTFE variants.
- Custom Sizes: Manufacturers often provide bespoke solutions for non-standard applications.
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FDA Compliance for Food & Pharmaceutical Use
- Many PTFE gaskets meet FDA standards, making them suitable for industries requiring high hygiene and safety levels.
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Material Properties & Limitations
- High-Temperature Resistance: PTFE can withstand extreme temperatures, making it ideal for harsh environments.
- Chemical Inertness: Resistant to most acids, bases, and solvents.
- Rigidity & Non-Reusability: Unlike elastomeric gaskets, PTFE lacks elasticity and cannot be reused once compressed.
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Available Sizes & Configurations
- Standard Sizes: From DN15 to DN2000, covering most industrial piping needs.
- Thickness Options: Typically 0.5mm or as required, available in milled or slit forms.
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Applications & Considerations
- Ideal for flange sealing in chemical processing, oil & gas, and food industries.
- Requires precise installation with consistent bolt pressure to prevent leaks.
Understanding these standards and properties ensures the right selection for specific operational needs.
Summary Table:
| Standard | Description | Application |
|---|---|---|
| EN1514-1 | European standard for non-metallic flat gaskets, including PTFE. | Ensures dimensional accuracy for flange systems in Europe. |
| DIN2690 | German standard for PTFE envelope gaskets. | Guarantees compatibility with DIN flange systems. |
| ASME B16.20 | American standard for metallic/non-metallic gaskets, including PTFE variants. | Widely used in North American industrial piping. |
| FDA Compliance | Meets hygiene and safety standards for food/pharmaceutical use. | Safe for direct contact with consumables and sensitive processes. |
Need PTFE gaskets that meet stringent industry standards? KINTEK specializes in high-performance PTFE components, including gaskets, seals, and liners, tailored for semiconductor, medical, laboratory, and industrial applications. Our precision manufacturing ensures compliance with EN1514-1, DIN2690, ASME B16.20, and FDA standards. Whether you require standard sizes (DN15–DN2000) or custom solutions, we deliver reliability and chemical resistance for critical environments. Contact us today to discuss your project or request a quote!
