... Stainless Steel Stem # 304 & FPM / VITON Rubber.5. FF-PP / PP-G Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Carbon ... With Stainless Steel Stem # 420 & EPDM Rubber.7. FR-PP / PP-G Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Stainless ... With Stainless Steel Stem # 304 & FPM / VITON Rubber.9. PP-R Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Carbon Stem ...