Product Description
Introducing the Spring Energized PTFE Seal, a marvel of engineering designed for superior performance. This spring-energized, pressure-assisted sealing device is crafted with precision, featuring a PTFE (or other high-grade polymer) seal that partially encapsulates a meticulously engineered, corrosion-resistant metal spring energizer, ensuring unmatched reliability.
Our PTFE jackets are precisely machined to perfection, filled with advanced PTFE composites and other high-performance polymers. They are designed to function seamlessly across a wide temperature range, from cryogenic conditions up to 250°C. These jackets are incredibly inert, resisting almost all chemicals, and some variants are also suitable for sanitary environments.
Material
Our seals use PTFE that is meticulously filled with materials like bronze, glass, graphite, carbon, and more, ensuring optimal performance for your specific needs.
Application Example
Perfectly suited for Radial Seals in Static Service, offering reliable performance and durability.
Ideal for Radial Seals in Reciprocating Motion, ensuring smooth and consistent operations.
Designed for Radial Seals in Rotary Motion, providing seamless and uninterrupted functionality.
Highly effective for Inside face Seals in both Static and Rotary Service, delivering dependable sealing solutions.
Optimal for Outside face Seals in Static and Rotary Service, maintaining integrity under demanding conditions.
Section structure
Available in Symmetric designs, tailored for Rod and Piston applications to suit diverse requirements.
Spring type:
Featuring U shaped spring (Type 400) for robust and efficient sealing solutions.
Round wire spring (Type APS) is available for versatile applications.
O shaped spring (Type 103) offers unique sealing capabilities.
Groove
Standard Heel Groove designed for optimal support and performance.
Extended Heel Groove available to meet specific application needs.
Flanged Heel Groove designed for specialized applications.
Size
Both imperial and metric sizes are readily available across all styles, accommodating your precise requirements.
Workshop

How to order from us?
- 1. Reach out to DEF's dedicated sales team to receive a comprehensive quotation. (Contact via Email, Telephone, or Trademessage)
- 2. Provide DEF with your desired type and detailed specifications such as materials, size, quantity, color, and any special requests.
- 3. We will promptly send you the pricing and detailed information. Please send back the Purchase Order for approval to proceed.
- 4. Upon order and timeline confirmation, DEF will commence the production process as soon as the payment is received.
- 5. If a sample is required, please inform DEF in advance so arrangements can be made.
- 6. Allow 5 to 10 working days for the meticulous production of your seals.
- 7. Our Quality Checking process ensures excellence. DEF can provide photos of the bulk order for your approval prior to packing, upon request.
- 8. Secure and efficient packing processes are employed.
- 9. Your order is then released for shipping with utmost care.
- 10. Should any issues arise, please contact DEF promptly upon receipt of your package. We are committed to investigating and consulting with you to find a satisfactory solution.
- Quality and Service are the cornerstone principles of DEF, ensuring you receive only the best.
Feel free to reach out for more detailed information about our factory and products. We are here to assist you with any inquiries.
Name |
ptfe Spring energized /loaded seals -PTB |
Sliding speed[m/s] |
15 |
Temperature [° C] |
-40...+260
For specific applications beyond indicated range, please enquire. |
Pressure Pr: N/mm² (Max) |
45 |
Medium |
Virtually all fluids, chemicals and gases |
Material |
Virgin PTFE, PTFE+carbon, PTFE+glass fiber, PTFE+bronze, PTFE+polyester, PEEK etc. Other special material is also available. |
Color |
coffee, white, black, blue, beige |
Type of spring |
V-spring, Helical Spring, Slanted Coil Spring |
Size |
Supply standard and non-standard size |
Advantages |
1. Resistant to most fluids and chemicals
2. Low coefficients of friction
3. Stick-slip-free operating for precise control
4. High abrasion resistance and dimensional stability
5. Can handle rapid changes in temperature
6. No contamination in contact with foodstuffs. pharmaceutical and medicinal fluids.
7. High temperature range
8. Sterilisable
9. Unlimited shelf life. |
Application |
Valves
Pumps
Separators
Actuators
Dosing devices |
Certificates |
ISO9001-2008, SGS |