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Fax: 0086-575-82037239
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E-mail: sj@sealing-china.com
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Description
Expanded PTFE gasket and seal materials consists of virgin PTFE with multidirectional fibrous and porous structure,which the extruded PTFE consists of a special manufacturing process provides the material with special chemical and physical properties. This can be of advantage in wide range of application. Expanded PTFE gasket soft flexible PTFE gasket and sealing material easily conforms to sealing surface imperfections with less torque than conventional materials.Expanded PTFE resists cold flow and creep while offering the widest range of sealability,chemical resistance,and temperature service of any material offered.
Application
Expanded PTFE gasket is designed for use in process piping and equipment in chemical,pulp and paper,food and beverage and other general industrial applications where resistance to highly aggressive chemicals is required.
Specification
Item |
Test method |
Value |
Compressibility |
ASTM F36A—99 |
45 % |
Recovery |
ASTM F36A—99 |
≥10 % |
Tensile strength |
ASTM 152—95 |
10~11MPA |
Temperature |
- |
-180~260℃ |
Density |
ASTM D 792 |
0.7-0.8g/㎝3 |
PH range |
- |
0-14 |
Leak rate |
GB/T9129—2003 |
<1.0×10-3cm3/s |
Feature
Full chemical resistance like solid sintered PTFE
Best adaptation on uneven surfaces and affected sealing faces
Long lasting gasket solution for extreme aggressive Media