1. Superior sealing performance compared to asbestos products. 2. Little differences in performance from cyrogenic to high temperatures. 3. Expanded graphite (Graseal) has chemical resistance properties second only to PTFE, and can be used with almost any fluid (with the exception of those listed below). 4. Less shrinkage at high temperatures than asbestos packings, with little stress relaxation.
This is a self lip seal type packing machined from PTFE resin, available in VH, VL, and D type cross-sections. For high temperature and high pressure services, packings made of filled PTFE is also available.
FEATURES 1. Can be used with almost any fluid. 2. Because this packing is made from PTFE, it has low frictional resistance with the stem and will not stick. 3. Will not contaminate the fluids. 4. By selecting suitable fillers, products for high temperature, pressure and wear resistant products are also available.
