Perforated PTFE Round Plate: Sealing and Isolation Solution

Introduction to Perforated PTFE Round Plate

The perforated PTFE round plate is a high-performance component made from pure Polytetrafluoroethylene (PTFE), designed to meet the demands of industries requiring exceptional chemical resistance, electrical insulation, and low-friction properties. This unique product features a perforated design that ensures high porosity, even fluid distribution, and superior sealing capabilities. It is widely used in industries such as chemical processing, food and pharmaceuticals, and electrical applications.

Key Features of Perforated PTFE Round Plate

• High Chemical Inertness: This plate is made of pure PTFE, offering outstanding resistance to almost all strong acids, alkalis, and organic solvents.

• FDA Compliant: Industrial-grade material that meets FDA food contact standards, making it safe for use in food processing and pharmaceutical industries.

• Unique Perforated Design: The perforated structure allows for high hole density and excellent fluid distribution, improving the overall efficiency of filtration and sealing processes.

• Low Friction and Non-Stick: The plate’s surface has an extremely low friction coefficient and non-stick properties, ideal for applications where easy flow and minimal material adhesion are required.

• Electrical Insulation: The material’s high dielectric strength (10 kV/mm) makes it perfect for high-frequency electrical insulation applications.

• Excellent Flexibility: The plate’s flexibility compensates for axial, transverse, and angular displacement in piping systems caused by thermal expansion, contraction, or mechanical stress.

Applications of Perforated PTFE Round Plate

• Sealing and Isolation: Used as a sealing gasket in complex flange faces, the central large holes are ideal for main pipelines, while surrounding small holes distribute bolt stress evenly or act as pressure balancing channels.

• Chemical Industry: Ideal for applications such as filters for aggressive chemical media, tower support plates, distribution plates, and electrolytic cell diaphragms.

• Food and Pharmaceutical: Used in sterile filtration, venting, and drying plates in food and pharmaceutical equipment, thanks to its inert and non-stick properties.

• Electronics and Electrical: The perforated PTFE round plate serves as a high-frequency insulation part and coil skeleton.

Physical Properties of Perforated PTFE Round Plate

The perforated PTFE round plate has a density ranging from 2.1 to 2.3 g/cm³. It exhibits a tensile strength of at least 15.0 MPa, with an elongation at break greater than or equal to 150%. The material has an exceptionally low water absorption rate of less than 0.01%. It also features an impressive dielectric strength of 10 kV/mm, providing excellent electrical insulation. The contraction percentage is minimal, below 0.4%. With a wide working temperature range of -200°C to +260°C, the plate can tolerate short-term exposure to temperatures as high as 300°C without compromising its integrity.

Performance in Different Conditions

This perforated PTFE round plate is designed for low to medium-pressure static sealing applications. Its mechanical properties, including flexibility and high chemical resistance, make it ideal for use in piping systems that experience thermal expansion and contraction, installation errors, or foundation settlement. The specific pressure range depends on the plate’s thickness, hole design, and backing support strength, but it typically performs well in conditions under 1 MPa (10 Bar), which should be evaluated according to the application structure.

Conclusion

The perforated PTFE round plate is a versatile and durable component for a wide range of industrial applications. Whether used for sealing, filtration, insulation, or venting, its combination of chemical resistance, electrical properties, and mechanical flexibility makes it a preferred choice in challenging environments.