PTFE gaskets for flanges are available in a wide range of nominal sizes, from DN15 to DN2000, covering standard pipeline dimensions used in various industrial applications. These sizes accommodate everything from small-scale systems to large-diameter piping networks, ensuring compatibility with most flange configurations. The standardized sizing allows for easy integration into existing systems while maintaining PTFE's benefits like chemical resistance and thermal stability.
Key Points Explained:
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Standard Nominal Sizes (DN):
- PTFE gaskets are manufactured in sizes from DN15 (15mm nominal diameter) up to DN2000 (2000mm nominal diameter).
- Common intermediate sizes include:
- DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100
- DN125, DN150, DN200, DN250, DN300, DN350, DN400
- DN450, DN500, DN600, DN700, DN800, DN900
- DN1000, DN1200, DN1400, DN1600, DN1800
- This comprehensive range ensures availability for nearly all industrial piping requirements.
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Pressure Class Compatibility:
- While the question focuses on sizes, it's important to note these gaskets work with standard pressure ratings (PN):
- PN2.5, PN6, PN10, PN16 (common for lower-pressure systems)
- PN40, PN63, PN100 (for high-pressure applications)
- The combination of size and pressure rating determines the appropriate ptfe gaskets for flanges selection for specific applications.
- While the question focuses on sizes, it's important to note these gaskets work with standard pressure ratings (PN):
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Application Considerations:
- Smaller sizes (DN15-DN100) are typical for instrumentation and laboratory systems
- Medium sizes (DN125-DN500) suit most chemical processing plants
- Large diameters (DN600+) are used in major industrial piping networks
- Have you considered whether your application requires full-face or ring-type gasket configurations?
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Customization Potential:
- While standard sizes are readily available, PTFE's machinability allows for:
- Custom diameters outside the standard range
- Special thickness requirements
- Unique bore patterns
- This flexibility makes PTFE gaskets adaptable to non-standard flange setups.
- While standard sizes are readily available, PTFE's machinability allows for:
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Material Advantages Across Sizes:
- Regardless of diameter, PTFE maintains:
- Excellent chemical resistance
- Temperature range from -200°C to +260°C
- Non-stick properties
- These characteristics remain consistent across the entire size spectrum.
- Regardless of diameter, PTFE maintains:
Summary Table:
| Nominal Size (DN) | Common Applications | Pressure Ratings (PN) |
|---|---|---|
| DN15-DN100 | Instrumentation, labs | PN2.5 to PN16 |
| DN125-DN500 | Chemical processing | PN10 to PN63 |
| DN600-DN2000 | Industrial piping | PN16 to PN100 |
| Custom sizes | Specialized setups | Tailored solutions |
Need PTFE gaskets tailored to your specifications?
KINTEK manufactures precision PTFE gaskets in all standard sizes (DN15-DN2000) and custom configurations for semiconductor, medical, and industrial applications. Our chemically resistant gaskets maintain performance from -200°C to +260°C.
Get a quote for your project or discuss custom fabrication options today!