... resistant. ISO, API, ASTM, ANSI, DIN, BS,JIS Wafer Type Fluorine Lined Butterfly Valve:Features:1) Working Temperature: -15~150*C2) Applicable medium ... :1) Design Standard: MSS SP-67, API609, EN593.2) Flange End: DIN PN10/16/25, ANSI B16.1, BS4504, ISO ... Table E.3) Top Flange: ISO52114) Face to Face: API609, ISO5752 series 20, BS5155.5) Test&Check: API598. Wafer Type PTFE Lined Butterfly Valve