Acid resistant ball check valve fluoropolymers are ideal for pharmaceutical and biopharmaceutical processing equipment because they have excellent chemical and thermal resistance. Within normal use temperatures,PTFE or PFA which is material of chemical ball valve,resins are attacked by so few chemicals that it is more practical to describe the exceptions rather than tabulate the chemicals with which they are compatible. Plastic valve is used with a variety of media,Selecting plastic valves requires an analysis of performance specifications, actuation methods, and connection types. ·About Chemraz PVDF of chemical valve