butterfly ball valve(sanitary ball valve, clamp ball valve) PTFE seal, ISO5211 mounting pad, lockable handle, mirror polish end butterfly ball valve(sanitary ball valve, clamp ball valve) Material quality: AISI304, 316L Standard: DIN/SMS/ISO/IDF/3A/RJT/DS/BS/BPESpecification: DN15mm~150mm or 1/2"~4"Connection mode: clamped(quick install)Seal: PTFE, ISO5211 mounting pad, lockable handle, mirror ...