sanitary ball valve clamp end PTFE seal, ISO5211 mounting pad, lockable handle, mirror polish end. sanitary ball valve(3 pc ball valve, clamp ball vavle) Material quality: ... 1/2"~4"Connection mode: clamped(quick install)Seal: PTFE, ISO5211 mounting pad, lockable handle, mirror polish end.Packing ... and reducers according to DIN, SMS, ISO9000. sanitary ball valve, stainless vlave, 3 pc clamp end