PTFE Gaskets, also known as Polytetrafluoroethylene gaskets, are high-performance sealing components widely used in industries requiring superior chemical resistance, temperature stability, and non-stick properties. Made from a synthetic fluoropolymer, these gaskets excel in harsh environments where other materials fail. Their unique molecular structure provides exceptional durability and reliability.
Our PTFE Gaskets are manufactured to meet strict industry standards. Below are the detailed parameters in a tabular format for easy reference.
| Parameter | Value | Unit |
|---|---|---|
| Material Grade | Virgin PTFE, Filled PTFE (glass, carbon, bronze) | - |
| Density | 2.1 - 2.3 | g/cm³ |
| Tensile Strength | 20 - 35 | MPa |
| Elongation at Break | 200 - 400 | % |
| Compression Set | 40 - 60 | % |
| Thermal Conductivity | 0.25 | W/m·K |
| Coefficient of Friction | 0.05 - 0.10 | - |
| Dielectric Strength | 60 - 100 | kV/mm |
| Operating Pressure | Up to 20 | bar |
| Standard Sizes (ID x OD x Thickness) | Customizable from 5mm to 1000mm | mm |
PTFE Gaskets are utilized across various sectors due to their versatile properties. Common applications include:
Proper installation ensures optimal performance of PTFE Gaskets. Follow these steps:
What is the maximum temperature PTFE Gaskets can withstand?
PTFE Gaskets can continuously operate at temperatures up to 260°C (500°F) and as low as -200°C (-328°F), making them suitable for extreme thermal conditions.
Are PTFE Gaskets resistant to all chemicals?
PTFE Gaskets offer excellent resistance to most chemicals, including strong acids, bases, and solvents. However, they may not be suitable for certain fluorinated compounds or alkali metals at high temperatures.
Can PTFE Gaskets be used in high-pressure applications?
While standard PTFE Gaskets are best for low to medium pressure (up to 20 bar), filled or reinforced versions with metal inserts can handle higher pressures, depending on the design and material grade.
How do I choose between virgin and filled PTFE Gaskets?
Virgin PTFE is ideal for pure chemical resistance, while filled PTFE (e.g., glass, carbon) provides improved mechanical properties like reduced creep and better wear resistance for dynamic applications.
Are PTFE Gaskets FDA approved?
Yes, virgin PTFE is FDA compliant and widely used in food, pharmaceutical, and biomedical industries due to its inertness and non-toxic nature.
What is the typical lifespan of a PTFE Gasket?
The lifespan varies based on application conditions, but PTFE Gaskets generally last several years in moderate environments. Regular inspection is recommended to ensure integrity.
Can PTFE Gaskets be custom-made to specific sizes?
Absolutely. We offer customizable PTFE Gaskets in various dimensions, shapes, and filler types to meet unique operational requirements.
Do PTFE Gaskets require any special handling during installation?
They should be handled cleanly to avoid contamination. Ensure flanges are aligned and bolts are torqued evenly to prevent stress concentration and leaks.
How does PTFE compare to other gasket materials like rubber or graphite?
PTFE outperforms rubber in chemical and temperature resistance and graphite in non-stick and electrical properties, though graphite may excel in higher temperature ranges above 500°F.
Are there any environmental concerns with using PTFE Gaskets?
PTFE is inert and does not leach harmful substances, but proper disposal should follow local regulations. It is not biodegradable, so recycling or approved waste management is advised.
