Energized Teflon PTFE Seals:
Design & Manufacture
Energized PTFE seals offer extreme temperature, high pressure chemically inert static and dynamic sealing for the most demanding applications. Our thin flexible PTFE sealing jacket, made resilient by an internal energizing spring, applies a load to the sealing element at low pressures. As the system pressure increases enough to take over from the spring and engage the shaft or bore a highly efficient seal is created. The spring provides permanent resilience to the seal jacket and compensates for jacket wear, hardware misalignment or eccentricity.
- Static and Dynamic Sealing
- Chemically Resistant
- Low Friction
- Dry Running or Lubricated
- Fluid Handling
- Medical Devices / Biomedical
- Semiconductor
- Pressure to 50,000
- Non Stick/Slip
- Cryogenic Applications
- FDA/USDA Compliant
- HPLC Applications
- Dispensing Equipment
- Food Service Industry
- Offshore
- Extreme Pressure
- High PV Grades
- Unlimited Shelf Life
- Controlled Friction/Load
- Military and Defense
- Pharmaceutical
- Oil & Seismic Transportation
Polymer Seal Jacket Materials
| Fluorolon | Description | Application | Temp. Range F. | Extrusion Resistance | Friction Rating |
| 1000 | Virgin PTFE | Light duty service, lowest friction, FDA approved, Excellent for cryogenic and low molecular weight gas service. | -320 to 450 | Lowest | Lowest |
| 1034 | Carbon/Graphite PTFE | Excellent resistance to heat and wear. Recommended for dry or semi-dry applications. Good in liquids and steam. | -320 to 500 | Moderate | Low |
| 1017 | Moly/Filled PTFE | Excellent in dry gas with better wear resistance than Fluorolon 1000. | -320 to 525 | Very High | Low |
| 1050 | Glass/Moly PTFE | Excellent wear and heat resistance. High pressure applications, good in hydraulic,steam and water. Abrasive in rotary service against soft metals. | -250 to 550 | Very High | Moderate |
| 1060 | Polyimide/Filled PTFE | Excellent in dry service with low wear rate in vacuum and inert gases. Very low abrasion to dynamic mating surfaces. | -450 to 500 | Very High | Low |
| 5000 | UH/Polymer PE | Excellent wear and extrusion resistance in aqueous media. FDA Approved. Has higher friction than PTFE compounds. | -320 to 175 | Very High | High |
| 1028 | 60% Bronze / filled PTFE | Excellent pressure capability even at high temperatures. Excellent at very high rotary speeds with low pressure | -320 to 450 | Lowest | Moderate |
| 2800 | PCTFE / KEL F | Best grade for cryogenic applications. Static and slow dynamic. | -350 to 300 | Lowest | High |
Typical Seal Geometries: Cantilever and Helical Designs
 |
 |
 |
 |
 |
| General Purpose | Rod/Piston Seal | Face Seal | Flanged Rotary | Flanged Rotary |
Spring Energizers For Seals
| Fluorolon | Description | Application |
| S301 | 301 Stainless Steel | General purpose for service to 550 F. Not recommended for highly corrosive media. |
| HST | Hastelloy C-276 | Recommended for highly corrosive media. |
| E | Elgiloy | For service in salt water,severe media or milder corrosives over 500 F. |
Factors Influencing Seal Performance
Several factors effect seal performance and must be addressed in the design stage to ensure maximum reliability of Fluorolon seals.
- Hardware Preparation: Surface Finish and Hardness
- Spring Energizer
- Polymer Jacket
- Operating Conditions
- Lubrication
- Frictional Considerations
- Spring Load vs Deflection
- Extrusion Gap / Radial Clearance
Materials Spec Sheets | Seal Data Sheet | Standard Seal and Gland Sizes