Electric actuator butterfly valve DN50-1200 or 2-48'' PN10/16 ... and ISO certificate Standard:DIN,BS,API,JIS,MSS etc Electric actuator butterfly valveFeature:1) Standard for face to face: DIN, ... operation mode like manual ( lever, handweel or gearworm), electric and pneumatic actuator and so on. Our brand is TST. We regard ... interest, pls don’t hesitate to let me know. Electric actuator butterfly valve