... JIS Standard DN50 ( 2" )-DN200 ( 8" ) PVC, FRPP / PPG, PPR Butterfly Valve DIN ANSI JIS Standard DN50 ( 2" )-DN400 ( 8" )DN50 - DN150 ... With Stainless Steel Stem # 420 & EPDM Rubber.3. PVC Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Stainless Steel ... Stem # 304 & EPDM Rubber4. PVC Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Stainless Steel ...