PTFE (polytetrafluoroethylene) O-rings are widely used in demanding environments where chemical resistance, thermal stability, and compliance with food and pharmaceutical standards are critical. Find out why these seals are a go-to solution for many industrial applications—and how ULTIMA’s offer adds even more value to your projects.
1. WHY CHOOSE A PTFE O-RING?
PTFE O-rings offer several technical advantages that make them suitable for extreme conditions:
-
Excellent chemical resistance: PTFE withstands nearly all chemicals and solvents, including strong acids, bases, and hydrocarbons.
-
Wide temperature range: usable from -200°C to +250°C, ideal for both cryogenic and high-temperature applications.
-
Cost-effective material: a high-performance solution at a controlled cost.
-
Food-grade compliant: thanks to multiple certifications (FDA, EC 1935/2004, etc.).
-
Very low water absorption: maintains performance even in humid environments.
-
Good dimensional stability: retains its mechanical properties over time.
-
Withstands pressures up to 300 bar: suitable for high-pressure applications.
2. LIMITATIONS OF PTFE O-RINGS
Despite their many strengths, PTFE O-rings also have a few limitations that should be considered:
-
Plastic deformation under stress, especially during repeated mechanical loads.
-
Low elasticity: unlike FFKM, PTFE does not offer good elastic recovery.
-
Intended for static applications only: not suitable for dynamic or moving assemblies.
-
Not suitable for closed-groove installations: due to its rigidity.
3. THE ULTIMA ADVANTAGE: FAST & CUSTOM SERVICE
At ULTIMA, we’ve built our offer around flexibility, responsiveness, and precision:
-
In-house manufacturing up to 500 mm in diameter.
-
No tooling costs: reduced costs for prototypes and small-to-medium series.
-
From single unit to medium series production (up to 5,000 units).
-
Quick production and delivery: your orders are handled with efficiency.
-
Tight manufacturing tolerances: for high reliability in assembly.
-
“Chrono Seal” option available for diameters up to 150 mm: quote + production + delivery in under 24 hours (for orders placed before 8:30 a.m.).
4. CERTIFICATIONS & STANDARDS: A FULLY COMPLIANT PTFE
Our PTFE 500 meets a wide range of international standards, ensuring its safe use in food, pharmaceutical, and industrial environments:
🥗 Food-Grade Standards
-
FDA 21CFR177.1550 and 21CFR177.300 (USA)
-
EC 1935/2004 and EC 2023/2006 (European Union)
-
Chinese standards: GB 31604.8-2016, GB 31604.7-2016, GB 31604.9-2016, GB 9685.3-2016, GB 31604.2-2016, and GB 9685-2016
💊 Pharmaceutical Standards
-
USP Class VI per protocols USP 35 <87> and USP 36 <88> (USA)
💧 Drinking Water Certifications
-
ACS (France), DVGW and KTW (Germany), WRAS (UK), Belgaqua (Belgium), B5014-T1 (Austria)
🛢️ Petrochemical Standards
-
NORSOK M-710
-
API-6A / ISO 10423:2009
Conclusion
PTFE O-rings offer a reliable and durable sealing solution for food, pharmaceutical, chemical, and petrochemical industries. With their exceptional resistance and ULTIMA’s rapid, custom-made manufacturing, you get a high-performance product that complies with the most stringent standards.
🔍 Need a quote or technical advice? Contact our team today and benefit from our speed, precision, and industrial expertise!
