The Rotary Actuator is a low maintenance unit. It is available with either a double crank mechanism for modulating control or a scotch yoke mechanism for on / off duty.
The main shaft assembly on the double crank design is welded together and therefore does not have to be assembled / disassembled.
The actuator is field reversible from clockwise-to-close to clockwiseto-open and has Namur mounting for switch packs or positioners on the top shaft and transfer case lid.
|Key Features||Key Benefits|
|Choice of double crank or scotch yoke mechanism||Can select best mechanism for optimum control and cost effectiveness|
|Square drive||Actuator can be mounted perpendicular to or inline with pipework|
|Field reversible from clockwise-to-close to clockwise-to-open||Base mounting of actuator irrespective of valve type and fail action|
|Adjustable end stops||End position can be externally adjusted in both open and closed position to within 7°|
|Pressure seals are all simple ‘O’ rings||Low maintenance costs|
|Single spring design - pre-stressed in detachable pack||Easy to assemble and to disassemble|
|Namur mounting details on top shaft and transfer case lid||Standard bracket for all positioners and accessories - no coupling required|