Stainless steel lined PTFE flange plug valve The material of the stainless steel lined PTFE flange plug valve can be selected from stainless steel and carbon steel. The lining materials include PTFE, PFA, FEP, PVDF, etc. The operation mode can be selected from the handle or the worm gear box. Pneumatic actuators, electric actuators, and flange surface standards include PN16, PN25, ANSI Class 150, Class 300
