Product Profile of Worm Gearboxes Gs

Auma manufactures part-turn gearboxes which are used wherever a 90° swivel movement is required for the operation of a valve or damper. Being a part of that worm gearboxes are used for the operation of part-turn valves [e.G. Butterfly valves, ball valves]. Salient features are as follows:

• Short-time duty s2 - 15 min [open-close duty]

• Intermittent duty s4 - 25 % [modulating duty only bronze]

• They can either be operated in:

• Manual operation directly via handwheel

• Motor operation [electric multi-turn actuator]

• Gearbox is prepared for mounting an actuator flange

• Clockwise rotation at the input shaft results in clockwise rotation at the output drive

• Torques up to 675,000 nm

• Reduction ratios from 39:1 to 3328:1

• Swing angles up to 100°

• Adjustable end stops [option]

• Output drive according to iso standard