What are PTFE Filled Carbon Lip Seals
In the field of industrial sealing, PTFE-filled carbon lip seals are the first choice for demanding applications.
Product Name: "PTFE-filled Carbon Lip Seals"
Product Description(PTFE filled carbon lip seals)
These seals cleverly combine the excellent chemical stability of polytetrafluoroethylene (PTFE) and the excellent wear resistance of carbon materials. PTFE gives the seals unparalleled chemical stability, allowing them to withstand the erosion of various corrosive media. Whether it is strong acids, strong bases or organic solvents, this seal can maintain stable performance, ensuring reliable protection even in the harshest chemical environments. The addition of carbon materials significantly enhances the wear resistance of the seals. In industrial environments, seals often encounter harsh conditions such as high-speed friction, high pressure and frequent starts and stops, and carbon-filled lip seals have proved their strength. The wear resistance of carbon materials enables these seals to be used for a long time without excessive wear, thus ensuring the durability of the sealing effect.
Key Product Features
- Chemical Stability (CS): The presence of PTFE gives these seals excellent chemical stability, enabling them to resist a variety of corrosive media. This feature is essential for industrial applications that are often exposed to chemicals.
- Wear resistance (WR): Carbon materials give the seals excellent wear resistance. They can withstand the rigors of industrial use and ensure long service life even in harsh conditions.
- Excellent sealing (ES): These lip seals are designed to provide effective leakage prevention and reliable sealing for industrial applications. Their excellent sealing performance helps maintain the integrity of systems and processes.
Specifications and dimensions
Specifications such as ID20mm×OD35mm×T5mm are available. In addition to these basic dimensional parameters, the lip shape and angle of the seal may vary due to different design and application requirements. When selecting PTFE-filled carbon lip seals, it is important to accurately select the appropriate specifications and sizes based on specific equipment needs and working conditions.
FAQs
- Q: What makes PTFE-filled carbon lip seals suitable for industrial applications?
- A: These seals combine chemical stability, wear resistance and excellent sealing performance, making them ideal for use in harsh industrial environments.
- Q: Can these seals withstand high temperatures?
- A: The combination of PTFE and carbon materials provides some heat resistance, but the specific temperature range depends on the application.
- Q: How do I select the right size PTFE-filled carbon lip seal?
- A: Consider the size of the sealing area in your equipment and refer to the manufacturer's guidelines to select the right size.
- Keywords: "Filled Carbon, PTFE, Lip Seals, Sealing Solutions, Industrial Seals, Mechanical Seals"
- PTFE-filled carbon lip seals are a reliable and efficient sealing solution for industrial applications. Their unique properties and customizable specifications make them a valuable asset in ensuring smooth operation and safety of industrial processes.
Production Process of PTFE filled carbon lip seals
1. Material preparation: Prepare PTFE (polytetrafluoroethylene) and filled carbon materials. PTFE is a high-performance plastic with good chemical resistance and low coefficient of friction. The filling carbon material may be granular or fibrous carbon material.
2. Mixing and preparation: Mix PTFE and filled carbon materials to obtain the required formula ratio. Mixing can be done by mechanical methods, such as stirring or ball milling, to ensure a uniform mix of materials.
3. Processing and shaping: Process the mixed materials into shape. Common processing methods include extrusion and compression molding.
- Extrusion molding: The mixed material is heated through an extruder and extruded into a ribbon or tube shape. Then, use a cutting tool to cut it into the desired lip seal shape.
- Compression molding: Mixed materials are placed into a mold with the desired lip seal shape. Heat and pressure are then used to deform the material and form the seal into the desired shape.
4. Surface treatment: As needed, the surface of PTFE Filled Carbon Lip Seals can be treated to improve its performance. This may include applying special coatings such as lubricating or wear-resistant coatings.
5. Quality control: Carry out quality control during the production process, including checking size, appearance, and performance requirements. This ensures that every PTFE Filled Carbon Lip Seal produced meets specifications and standards.
It should be noted that the production process of PTFE Filled Carbon Lip Seals may vary based on different manufacturers and specific requirements. Therefore, in actual production, it can be adjusted and optimized according to specific application needs and process requirements.
Typical physical properties of carbon-filled PTFE variants
| Property | Test Method | 15% Carbon Filled |
|---|---|---|
| Specific Gravity | ASTM D 792 | 2.05 – 2.10 g/cm3 |
| Tensile Strength | ASTM D 4894 | 13 – 17MPa |
| Elongation | ASTM D 4894 | 90 – 300% |
| Shore D Hardness | ASTM D 2240 | 60 – 66 |
| Deformation Under Load | ASTM D 695 | 5 – 7% |
| Permanent Deformation | ASTM D 695 | 2 – 4% |
| Flexural Modulus | 1105 MPa | |
| Coefficient of Static Friction | 0.14 – 0.16 | |
| Coefficient of Dynamic Friction | 0.12 – 0.14 | |
| Volume Resistivity | ASTM D 257 | 10-4 Ohm / CM |
| Service Temperature | -200°C / +255°C |
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