PTFE teflon piston and back-up ring
About PTFE Material
PTFE material has excellent resistance for all chemical corrosion. Its friction coefficient is the lowest in plastics.Temperature changes do not affect its electrical insulation property. So PTFE often be called "plastic king". PTFE is suitable for making corrosion resistant parts, wear parts, seal, insulation parts and medical equipment parts.
Back-up Rings have no intended sealing function.
They are protective and supporting elements made from extrusion-resistant materials which generally have a rectangular cross section. They are installed in a groove together with an elastomeric sealing element preferably with a corresponding O-Ring in static applications.Due to the tight fit of the Back-up Ring in the housing, they prevent extrusion of the pressurised elastomeric sealing element into the sealing gap.
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Chengdou Shuanggao Industrial Co., Ltd.
- Phone: +86 028-81728147
- Business Type:
- Location: China
- Main Products: Carbon fiber, polyimide, polystyrene
- Total Employees:100-500 people
- Year Established:
- Export Markets:
- Total Annual Revenue:
