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Multi-turn gearboxes GST, GK, GHT, WSH |
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Multi-turn gearboxes can be formed by combining multi-turn actuators
SA... with AUMA spur and bevel gearboxes to increase the torque or to reposition
the output shaft. The gearboxes can of course also be used on manually operated
valves.
The spur geabox GST enables lateral repositioning of drive and
output shaft.
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Spur gearboxes GST 10.1 - GST 40.1 |
Multi-turn Gearboxes GHT 360.1 |
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AUMA spur gearboxes are used for the operation of valves
(e.g. gate valves, globe valves).
- Type of duty:
Short-time duty S2 - 15 min (Open-close duty)
Intermittent duty S4 - 25 % (Modulating duty)
- 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
- To reverse the direction of rotation of GST 10.1 - GST 30.1, a
reversing gearbox GW 14.1 can be used
- GST 10.1 – GST 16.1 are single stage gearboxes with intermediate
wheel
GST 25.1 - GST 40.1 are double stage gearboxes
Design features:
- Torques up to 16,000 Nm
- Reduction ratios from 1:1 to 1:22
- Output drive types according to ISO or DIN standard
Ambient conditions:
- High enclosure protection
- High quality corrosion protection
- Wide ambient temperature ranges
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High pressures in pipelines require multi-turn actuators
with high torques.
Torques up to 80,000 Nm can be achieved by combining a multi-turn actuator with
a multi-turn gearbox GHT.
- Type of duty:
Short-time duty S2 - 15 min (open-close duty)
- Operation: Motor operation
- Not self-locking
Design
features:
- Torques up to 80,000 Nm
- Reduction ratio 1:12
- Output drive types according to ISO 5210 or ISO 5211
Ambient
conditions:
- High enclosure protection
- IP 67
- Wide ambient temperature range
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Bevel Gearboxes GK 10.2 - GK 40.2 |
Limit Switching WSH 10.1 - WSH 16.1 |
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AUMA bevel gearboxes are used for the operation of valves
(e.g. gate valves, globe valves).
- Type of duty:
Short-time duty S2 - 15 min (Open-close duty)
Intermittent duty S4 - 25 % (Modulating duty)
- 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
- To reverse the direction of rotation of GK 14.2 - GK 25.2, a
reversing gearbox GW 14.1 can be used.
- Direction of rotation at the output drive can be reversed for GK
30.2 - GK 40.2.
- GK 10.2 - GK 25.2 are single stage gearboxes.
GK 30.2 - GK 40.2 are double stage gearboxes.
Design features:
- Torques up to 16,000 Nm
- Reduction ratios from 1:1 to 1:22
- Output drive types according to ISO or DIN standard
Ambient conditions:
- High enclosure protection
- High quality corrosion protection
- Wide ambient temperature ranges
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For manually operated valves it can be necessary that
information on the valve position is displayed in a control room.
There are applications where e.g. a valve may only be opened while another one
is closed at the same time.
The AUMA limit switching WSH for manually operated valves is suitable for these
applications.
Design
features:
- Suitable for accepting axial forces
(with output drive type A)
- Can be positioned at every 90°
Ambient
conditions:
- High enclosure protection
- High quality corrosion protection
- Wide ambient temperature ranges
Functions:
- Continuous mechanical position indication
- Generation of a end position signal for rotary movements from 2
- 500 turns
(Optional: up to 2000) per stroke
- Generation of two additonal intermediate position signals, one
in OPEN and one in CLOSE direction (option)
- Continuous direct travel monitoring for transmission to the
control room (option)
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