Three Way Type Diaphragm Valve 1. High quality but competitive price; 2. Easy installation; 3. ... Iron, Ductile Iron, Cast Steel, Stainless Steel & Duplex .Lining (Optional): Fluorine -- PTFE, FEP, PCTFE, PVDF, TFE, PFA, RPP, PORubber - NR, BR ... , IIR, CR, EPDM, CSPE, FKM, SI .Diaphragm: Rubber or Fluorine .Compressor/Disc: Cast Iron, Ductile Iron, Cast Steel, Stainless Steel ...