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Spring Energized Teflon PTFE Seals

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, resilient by design, utilizes a spring designed to apply outward pressure to the sealing element at low pressures. A highly efficient seal is created as the system pressure increases enough to take over from the spring and engage the shaft or bore. The spring or energized seal assembly provides permanent resilience to the seal jacket and compensates for jacket wear, hardware misalignment and eccentricity. The jacket material is critical in design to assure proper seal performance. We offer PTFE compounds specific to the application i.e. High PV seals, cryogenic seals, high temperature seals, and PTFE seal alloys with fillers such as PTFE Graphite, PTFE Polymide, PTFE Carbon, PPS PTFE, and Rulon L, Rulon J and Rulon AR equivalents.
Benefits of Teflon

  • Static and dynamic sealing
  • Chemically resistant seals
  • Low friction—High PV, spring
    energized PTFE seals
  • Dry running or lubricated, spring energized seals
Semiconductor Seals
  • Pressure to 50,000 psi
  • Non stick/slip, spring loaded PTFE seals
  • FDA/USDA Compliant
  • PTFE energized seals

Applications

  • Fluid handling
  • Medical devices / biomedical
  • Semiconductor
  • HPLC
Offshore Drilling Seals
  • Food service industry
  • Oil & Gas
  • Cryogenic
  • Compressors
  • Dispensing Equipment


Advanced EMC Technologies Request For Quote

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
General Purpose Rod/Piston Seal Face Seal Flanged Rotary

Spring Energizers For Spring Loaded 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 Loaded vs Deflection
  • Extrusion Gap / Radial Clearance


Materials Spec Sheets | Seal Data Sheet | Standard Seal and Gland Sizes | PTFE Seals video