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About Chemraz PVDF of chemical valve

PVDF
PVDF (Polyvinylidene difluoride) is an engineering fluoropolymer and has a more limited range of chemicals performance and an upper temperature limit of 120 oC. Although replaced in many applications by the improved performance of PTFE resins, it remains the material of choice for low temperature halogen applications – Bromine and Chlorine.
Chemraz
Chemraz® is a perfluoroelastomer and is a proprietary compound manufactured by Greene Tweed. It is used specifically in the manufacture of seals, combining the resilience and sealing force of an elastomer with chemical resistance approaching that of PTFE. CRP uses Chemraz 505 seals in the manufacture of sampling systems.

Source: Chemical Industry Valve 【Back】
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