PTFE Seals

• Index
• General Information
• Standard-Radial Seals (Piston- and Rod Seals)
• Standard-Axial Seals
• For Internal Pressure
• For External Pressure/Vacuum
• Seal Selection and Operation Range
• Materials
• Seal Jacket Materials
• Spring Energizer Materials
• Hardware and Groove Dimensions
• Radial Seals
• Axial Seals
• Groove dimensions PTFE seals type 414 und 143
• Groove dimensions seals with flange
• Quality of finish for rotary seals
• Hardness of finish for rotary seals
• Surface Finish (Rod and Housing)
• Sterilisable Seals and Integral Piston Seals
• Advantages
• Series 400
• Series 4FM
• Series RS
• Series JS
• Special
• Diaphragm-Seal
• Economical Solution
• Seal Numbering System and Part Number Examples
• Information for Installation

Seal Selection and Operation Range

The wide variety of types provide the opportunity to meet all sealing requirements for axial and radial seals. Not all maximum stresses can be applied to the seal at one time.

The variety of designs, jacket and spring materials, together with several springs and dimensions allow sealing applications within the following working ranges:

• Temperatures from -250°C to +316°C
• For rotation and reciprocating movement up to 5 m/s
• For static applications up to 3500 bar pressure
• For dynamic applications up to 550 bar pressure
• Universal chemical-resistant
• For vacuum and UHV applications
• Diameter from 2 mm up to 3000 mm

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