
Auma
AUMA worm gearboxes are used for the operation of part-turn valves and special valves (dampers, flue gas dampers, etc.).
- Type of duty: Short-time duty S2 – 15 min (Open-close duty) and inching/positioning
- 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) - Swing angle 0° to 190° or multi-turn without endstop
Details
Design features
- Torque range up to 675,000 Nm
- Reduction ratios from 39:1 to 3328:1
- Swing angles up to 190°
- With or without primary reduction gearing
- 360° worm wheel
- End stops with travelling nut principle in accordance with AWWA C504
- Output drive according to ISO standard
- adjustable end stops
- SIL parameters
- All parts within the power drive have been subjected to thermal hardening
Options
- Swing angle > 100 ° or multi-turn (without end stops)
- Worm wheel made of bronze for modulating applications
- Clockwise rotation at the input shaft results in counterclockwise rotation at the output drive
- Base and lever
- Chain drive
- Housing made of spheroidal cast iron
- Version for drinking water applications
- Version for nuclear power plants
- Fireproof K-MASS® coating
- Extension flange IM1 to IM3 version in accordance with EN ISO 12944-2
- Housing made of spheroidal cast iron
Ambient conditions
- Enclosure protection IP68
- High quality corrosion protection
- –60 °C to +120 °C
Documents