PTFE Jacketed Gaskets
High-Performance PTFE Jacketed Gaskets for Industrial Applications
PTFE Jacketed Gaskets are engineered sealing solutions designed for demanding industrial environments. These gaskets combine the chemical resistance of PTFE (Polytetrafluoroethylene) with the structural reinforcement of metal or elastomeric cores, making them ideal for corrosive media, high temperatures, and aggressive chemical processes.
Key Features of Our PTFE Jacketed Gaskets:
- Exceptional chemical resistance to acids, bases, and solvents
- Wide temperature range: -200°C to +260°C (-328°F to +500°F)
- Non-stick surface prevents media buildup and contamination
- Excellent compression and recovery characteristics
- FDA compliant for food and pharmaceutical applications
Product Specifications
| Parameter | Specification |
|---|---|
| Material | Virgin PTFE Jacket with Various Core Materials |
| Core Options | Stainless Steel, EPDM, FKM, NBR, Compressed Fiber |
| Thickness Range | 1.5mm to 6.0mm (0.06" to 0.24") |
| Diameter Range | 15mm to 600mm (0.6" to 24") |
| Pressure Rating | Up to 20 bar (290 psi) depending on configuration |
| Color | Natural White (Standard), Custom Colors Available |
Advantages Over Conventional Gaskets
PTFE Jacketed Gaskets offer superior performance compared to traditional gasket materials. The PTFE jacket provides complete chemical inertness while the core material delivers mechanical strength and compression properties. This combination ensures reliable sealing even in the most challenging applications where other gasket materials would fail.
Technical Data
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength | 25-35 MPa | ASTM D638 |
| Elongation at Break | 300-400% | ASTM D638 |
| Compression Set | <20% | ASTM D395 |
| Thermal Conductivity | 0.25 W/mK | ASTM C518 |
| Specific Gravity | 2.15-2.20 | ASTM D792 |
PTFE Jacketed Gaskets FAQ
What industries commonly use PTFE Jacketed Gaskets?
PTFE Jacketed Gaskets are widely used in chemical processing, pharmaceuticals, food and beverage, semiconductor manufacturing, and oil & gas industries. Their exceptional chemical resistance makes them suitable for handling aggressive acids, solvents, and high-purity media where contamination must be avoided.
How do I select the right core material for my PTFE Jacketed Gasket?
Core selection depends on application requirements. Stainless steel cores provide maximum strength for high-pressure applications, while elastomeric cores (EPDM, FKM) offer better compression for irregular flange surfaces. Compressed fiber cores work well for general chemical service at moderate temperatures and pressures.
Can PTFE Jacketed Gaskets be customized for specific applications?
Yes, we offer extensive customization options including special diameters, thicknesses, core materials, and even multi-layer designs for specific pressure requirements. Custom shapes beyond standard round gaskets can also be manufactured to match unique flange configurations.
Installation Guidelines
- Ensure flange surfaces are clean, smooth, and free of imperfections
- Verify proper gasket size matches flange dimensions
- Align gasket carefully without twisting or stretching
- Follow recommended torque values for bolt tightening
- Use crisscross pattern when tightening multiple bolts
- Avoid over-compression which may damage the PTFE jacket
Quality Assurance
Our PTFE Jacketed Gaskets undergo rigorous quality control including dimensional verification, material certification, and performance testing. Each batch is tested for chemical resistance, compression characteristics, and thermal stability to ensure consistent performance in field applications.
Additional PTFE Jacketed Gaskets Information
For specialized applications, we offer reinforced PTFE Jacketed Gaskets with additional layers of glass or carbon fiber for enhanced pressure resistance. These variants maintain all the chemical benefits while extending the operational pressure range up to 40 bar (580 psi) in certain configurations.
What is the typical service life of PTFE Jacketed Gaskets?
Service life varies based on operating conditions but typically ranges from 3-10 years in continuous service. Factors affecting lifespan include temperature extremes, chemical exposure, pressure cycling, and mechanical stress. Regular inspection is recommended for critical applications.
Are PTFE Jacketed Gaskets suitable for vacuum applications?
Yes, certain configurations of PTFE Jacketed Gaskets perform exceptionally well in vacuum service. The non-porous PTFE surface prevents outgassing, making them ideal for high-vacuum systems in semiconductor and pharmaceutical industries.
How should PTFE Jacketed Gaskets be stored when not in use?
Store in original packaging in a clean, dry environment away from direct sunlight. Ideal storage temperature is between 15-25°C (59-77°F). Avoid stacking heavy items on stored gaskets to prevent deformation. Shelf life is typically 5 years when stored properly.
Compliance and Certifications
Our PTFE Jacketed Gaskets meet various industry standards including:
- FDA 21 CFR 177.1550 for food contact
- USP Class VI for pharmaceutical applications
- ASME B16.20 for pipe flanges
- ISO 9001:2015 quality management system
Ordering Information
PTFE Jacketed Gaskets are available as standard items or custom manufactured to precise specifications. Lead times vary based on complexity, with standard configurations typically shipping within 2-3 business days. Contact our technical team for assistance with material selection and application-specific recommendations.