PTFE encapsulated O-rings are designed to meet stringent compression set standards, ensuring durability and performance in demanding applications. These O-rings typically comply with L-P389A and ASTM-D-2166 standards, which validate their ability to maintain elasticity and sealing properties under compression. Their low compression set makes them ideal for industries requiring reliable sealing solutions, such as pharmaceuticals, food processing, and high-temperature environments.
Key Points Explained:
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Compression Set Standards Met by PTFE Encapsulated O-Rings
- L-P389A: This standard specifies requirements for O-rings used in aerospace and other high-performance applications. It ensures the material can withstand prolonged compression without permanent deformation.
- ASTM-D-2166: A widely recognized standard for evaluating the compression set of rubber materials. Compliance with this standard confirms the O-ring's ability to recover its original shape after compression.
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Why Compression Set Matters
- A low compression set indicates the O-ring retains its sealing capability over time, even under constant pressure.
- This property is critical in applications like autoclaving, where repeated sterilization cycles could degrade lesser materials.
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Additional Compliance and Features
- PTFE encapsulated O-rings are also sterilizable, autoclavable, and meet FDA, USP Class VI, and NSF standards for specific applications.
- They can operate in extreme temperatures (-60°C to +205°C), making them versatile for industries like pharmaceuticals and food processing.
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Core Material Options
- The encapsulation typically uses PTFE, while the core can be Viton fluoroelastomer or silicone, offering flexibility in chemical resistance and temperature tolerance.
For more details on PTFE encapsulated O-rings, explore how their unique properties meet industry needs.
By adhering to these standards, PTFE encapsulated O-rings provide reliable, long-lasting sealing solutions, ensuring safety and efficiency in critical applications. Their compliance with multiple certifications underscores their suitability for industries where material integrity is non-negotiable.
Summary Table:
| Standard | Purpose | Key Benefit |
|---|---|---|
| L-P389A | Aerospace & high-performance applications | Ensures resistance to permanent deformation under prolonged compression |
| ASTM-D-2166 | Evaluates rubber compression set | Validates the O-ring’s ability to recover its shape after compression |
| FDA/USP Class VI | Food, pharmaceutical, and medical compliance | Guarantees safety for direct contact with consumables or sensitive environments |
| NSF | Public health and safety standards | Certifies suitability for water and food processing systems |
Upgrade your sealing solutions with PTFE encapsulated O-rings from KINTEK! Our O-rings meet rigorous compression set standards (L-P389A, ASTM-D-2166) and are ideal for pharmaceuticals, food processing, and high-temperature environments. They’re sterilizable, autoclavable, and operate in extreme temperatures (-60°C to +205°C). Contact us today for custom fabrication or bulk orders—precision and reliability guaranteed!