When mounting LE linear thrust units to SA multi-turn actuators, they act as linear actuators, also referred to as linear thrust units.
The following indications serve the purpose of a rough outline. Please refer to the separate data sheets for more detailed infor- mation.
GHT worm gearboxes in combina- tion with SA multi-turn actuators act as multi-turn actuators with
high output torques. The torque range increases nearly fourfold when combining GHT gearboxes with SA actuators. This type of torque requirements occurs e.g. for large gate valves, weir pen- stocks or dampers.
GK bevel gearboxes in combination with SA multi-turn actuators act as multi-turn actuators with higher out- put torques. Drive shaft and output shaft are perpendicular. Thus, this combination is particularly appro- priate for implementing special au- tomation solutions. These include among others particular mounting positions or simultaneous operation of two valve stems using two GK gearboxes and a central actuator.
Duty class 1 – motor operation Lifetime for 90° swivel movement. Meets the lifetime requirements of EN 15714-2. Duty class 2 – motor operation Lifetime for 90° swivel movement for valves which are rarely operated. Duty class 3 – manual operation Meets the lifetime requirements of EN 1074-2.
GST spur gearboxes in combination with SA multi-turn actuators act as multi-turn actuators with higher out- put torques. Drive shaft and output shaft are arranged in axial offset position. Thus, this combination is particularly appropriate for imple- menting special automation solu- tions. This includes among others particular installation conditions.
The following indications serve the purpose of a rough outline. Sepa- rate data sheets are available for GST gearboxes comprising detailed information. For further reduction ratios, please contact us.
By mounting a lever and a base, the SQ actuator turns into a lever actuator. The technical data of these lever actuators is identical to that of the part-turn actuators, in- cluding, for example, the max- imum permissible number of starts. On the right, please find the data for lever actua- tors equipped with 3 phase AC motors. Operating times apply for 90° swing angle.
SA multi-turn actuators com- bined with GF gearboxes act as lever actuators. Lever gearboxes are derived from GS part-turn gearboxes wi- thregard to design. Various reduction ratios are achieved by integratingprimary reduc- tion gearings. The following indications serve the purpose of a rough outline. Please refer to the separate data sheets for more detailed informa- tion. Gearboxes provided for modulating applications are equipped with a worm wheel made of bronze. The nominal torque is reduced for this ver- sion.