Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Premium Virgin PTFE Seals: Low Wear & Self-Lubricating
Optimized structure ensures long-lasting sealing for motion systems.
Made of 100% virgin PTFE, these high-performance seals excel in demanding industrial scenarios. They operate stably from -200°C to 260°C, resist most acids, alkalis and solvents, and suit chemical, pharma and food sectors.
With low friction, self-lubrication and durable structure, they reduce part wear, extend equipment life, and ensure reliable sealing for rotating/reciprocating systems like reactors, pumps and valves.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
- Extreme Environmental Adaptability: Operates stably at -200°C to 260°C, with minimal dimensional change under temperature fluctuations. Resists most acids, alkalis, and solvents, ensuring long-term performance in corrosive conditions.
- Low-Friction Durability: Features inherent self-lubrication and a low friction coefficient, reducing wear on mating parts and extending equipment lifespan by 30%+ compared to standard seals.
- Reliable Sealing: Engineered with optimized spring energization, it maintains consistent preload even under high pressure (up to 50MPa), preventing leakage in dynamic or static applications.
2. Working Principle
The seal combines a 100% virgin PTFE matrix with an embedded metal spring. When installed, the spring provides constant preload to press the PTFE lip against the sealing surface. During operation, the spring compensates for wear, thermal expansion, or pressure changes, ensuring continuous, tight contact—eliminating leakage in rotating, reciprocating, or oscillating motion systems.
3. Product Details
- Material: 100% virgin PTFE (FDA-compliant grade for food/pharma use); spring options: 316L stainless steel (corrosion-resistant) or Inconel (high-temperature resistance).
- Dimensions: Customizable from 5mm to 500mm inner diameter; tolerance: ±0.02mm for precision fitting.
- Certifications: ISO 9001, FDA 21 CFR §177.1550, and CE, meeting global industrial standards.
4. Application Range
- Chemical Industry: Reactors, pumps, and valves handling corrosive media.
- Pharma & Food: Sanitary equipment (e.g., mixing tanks, filling machines) requiring contamination-free sealing.
- Oil & Gas: Downhole tools and pipeline valves operating in extreme temperatures/pressures.
- Hydraulics/Pneumatics: Cylinders and actuators with high-frequency motion.
5. FAQ
- Q: Can it be used in food-contact applications? A: Yes—our virgin PTFE meets FDA standards, making it safe for direct food/pharma contact.
- Q: What’s the service life under normal conditions? A: Typically 2–5 years, depending on operating pressure/temperature and media.
- Q: Do you offer custom sizes? A: Yes—we provide tailor-made solutions within 7–10 business days for non-standard dimensions.
6. Forever Seals’ Selling Points
- 15+ Years of Expertise: Specialized in high-performance seals, with a R&D team updating designs yearly.
- Global Support: 24/7 technical consultation and fast delivery (3–5 days for standard models to major regions).
- Quality Guarantee: 1-year warranty for all products; free replacement if defects occur under normal use.
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