Description
PTFE Envelope Gasket with core material of flexible materials (Asbestos; non-asbestos; rubber, etc.) , which is wrapped by PTFE.

Typical Applications
It is mainly used as a gasket for tower, groove and all kinds of equipments of strong acid,  halogen corrosive liquids or anti-contaminated food flanges.

It is widely used in the chemical, petrochemical, pharmaceutical and food industries

Specification
Temperature: -100~260oC
Max. Pressure: 50bar
Compressibility: >/=20%
Recovery: >/=30%
Stress release: </=45%
Leakage rate: </=1×10-3 cm3/s