... ISO7005-2/ EN1092-2, DIN2501Top works acc.to: ISO5211Top flange for actuator installation acc.to: ISO52104. Material items: Body ... WCB, stainless steel,Al-bronze(C95400, C95800, etc)Shaft: SS420Body seal ring:SS304Disc seat ring: EPDM/NBR/VITONRetainer ... , coating thickness min. ≥250micron 6. Operating mode: bare shaft, worm gear+handwheel, electirc actuator, pneumatic actuator, hydraulic actuator ...