Part-turn gearboxes

GS 50.3 – GS 250.3

Operation instructions Assembly, commissioning

 GS 50.3 – GS 250.3
Table of contents

Read operation instructions first.

●
Observe safety instructions.
●
These operation instructions are part of the product.
●
Retain operation instructions during product life.
●
Pass on instructions to any subsequent user or owner of the product.

Purpose of the document:

This document contains information for installation, commissioning, operation and maintenance staff. It is intended
to support device installation and commissioning.

Table of contents Page

1. Safety instructions................................................................................................................. 4
1.1. Basic information on safety 4
1.2. Range of application 4
1.3. Warnings and notes 5
1.4. References and symbols 5
2. Identification........................................................................................................................... 7
2.1. Name plate 7
2.2. Short description 9
3. Transport, storage and packaging........................................................................................ 10
3.1. Transport 10
3.2. Storage 12
3.3. Packaging 13
4. Assembly................................................................................................................................ 14
4.1. Mounting position 14
4.2. Handwheel fitting 14
4.3. Chainwheel: mount 14
4.3.1. Chainwheel for gearboxes GS 50.3 – GS 80.3: mount 15
4.3.2. Chainwheel for gearboxes GS 100.3 – GS 250.3: mount 16
4.4. Multi-turn actuators for motor operation 17
4.4.1. Mounting positions Multi-turn actuators with part-turn gearboxes 17
4.4.2. Input mounting flange: mount 18
4.5. Gearbox to valve: mount 19
4.5.1. Output drive for coupling 19
4.5.1.1. Gearbox with coupling: mount to valve 19
5. Indications.............................................................................................................................. 22
5.1. Mechanical position indicator/running indication 22
6. Commissioning...................................................................................................................... 23
6.1. End stops in gearbox 23
6.1.1. End stop CLOSED: set 23
6.1.2. End stop OPEN: set 24
6.2. Seating in end positions via multi-turn actuator 25
6.2.1. Seating in end position CLOSED: set 25
6.2.2. Seating in end position OPEN: set 26
6.3. Swing angle 26
6.3.1. Swing angle: modify at gearboxes up to size 125.3 26
6.3.2. Swing angle: modify at gearboxes from size 160.3 27

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GS 50.3 – GS 250.3
Table of contents

6.4. Mechanical position indicator: set 28

7. Servicing and maintenance................................................................................................... 30
7.1. Preventive measures for servicing and safe operation 30
7.2. Maintenance intervals 30
7.3. Disposal and recycling 30
8. Technical data......................................................................................................................... 32
8.1. Technical data Part-turn gearboxes 32
9. Spare parts............................................................................................................................. 39
9.1. Part-turn gearboxes GS 50.3 – GS 125.3 39
9.2. Part-turn gearboxes GS 160.3 – GS 250.3 41
9.3. Primary reduction gearings for GS 100.3 – GS 125.3 (126:1/160:1/208:1) 43
9.4. Primary reduction gearings for GS 160.3 (218:1/442:1) GS 200.3 (214:1/434:1) GS 250.3 45
(210:1/411:1)
9.5. Primary reduction gearings for GS 200.3 (864:1) GS 250.3 (848:1) 47
10. Certificates.............................................................................................................................. 49
10.1. Declaration of Incorporation and EU Declaration of Conformity 49
Index........................................................................................................................................ 52
Addresses............................................................................................................................... 54

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 GS 50.3 – GS 250.3
Safety instructions

1. Safety instructions
1.1. Basic information on safety
Standards/directives Our products are designed and manufactured in compliance with recognised
standards and directives. This is certified in a Declaration of Incorporation and an
EU Declaration of Conformity.
The end user or the contractor must ensure that all legal requirements, directives,
guidelines, national regulations and recommendations with respect to assembly,
electrical connection, commissioning and operation are met at the place of installation.

Safety instructions/warn- All personnel working with this device must be familiar with the safety and warning
ings instructions in this manual and observe the instructions given. Safety instructions
and warning signs on the device must be observed to avoid personal injury or property
damage.

Qualification of staff Assembly, electrical connection, commissioning, operation, and maintenance must
be carried out exclusively by suitably qualified personnel having been authorised by
the end user or contractor of the plant only.
Prior to working on this product, the staff must have thoroughly read and understood
these instructions and, furthermore, know and observe officially recognised rules
regarding occupational health and safety.
Work performed in potentially explosive atmospheres is subject to special regulations
which have to be observed. The end user or contractor of the plant are responsible
for respect and control of these regulations, standards, and laws.

Commissioning Prior to commissioning, it is important to check that all settings meet the requirements
of the application. Incorrect settings might present a danger to the application, e.g.
cause damage to the valve or the installation. The manufacturer will not be held
liable for any consequential damage. Such risk lies entirely with the user.

Operation Prerequisites for safe and smooth operation:

● Correct transport, proper storage, mounting and installation, as well as careful
commissioning.
● Only operate the device if it is in perfect condition while observing these instruc-
tions.
● Immediately report any faults and damage and allow for corrective measures.
● Observe recognised rules for occupational health and safety.
● Observe the national regulations.
● During operation, the device warms up and increased surface temperature may
occur. To prevent possible burns, we recommend checking the surface temper-
ature using an appropriate thermometer and wearing protective gloves, if re-
quired, prior to working on the device.
Protective measures The end user or the contractor are responsible for implementing required protective
measures on site, such as enclosures, barriers, or personal protective equipment
for the staff.

Maintenance To ensure safe device operation, the maintenance instructions included in this manual
must be observed.
Any device modification requires prior consent of the manufacturer.
1.2. Range of application
AUMA part-turn gearboxes are designed for the operation of industrial valves, e.g.
butterfly valves, ball valves and dampers.
Other applications require explicit (written) confirmation by the manufacturer.

The following applications are not permitted, e.g.:

● Industrial trucks according to EN ISO 3691

4
GS 50.3 – GS 250.3
Safety instructions

● Lifting appliances according to EN 14502

● Passenger lifts according to DIN 15306 and 15309
● Service lifts according to EN 81-1/A1
● Escalators
● Continuous duty
● Potentially explosive atmospheres in combination with F21 lubricant type (refer
to name plate)
● Radiation exposed areas in nuclear power plants
No liability can be assumed for inappropriate or unintended use.
Observance of these operation instructions is considered as part of the device's
designated use.
1.3. Warnings and notes

The following warnings draw special attention to safety-relevant procedures in these

operation instructions, each marked by the appropriate signal word (DANGER,
WARNING, CAUTION, NOTICE).

Indicates an imminently hazardous situation with a high level of risk. Failure

to observe this warning could result in death or serious injury.

Indicates a potentially hazardous situation with a medium level of risk. Failure

to observe this warning could result in death or serious injury.

Indicates a potentially hazardous situation with a low level of risk. Failure to

observe this warning may result in minor or moderate injury. May also be used
with property damage.

Potentially hazardous situation. Failure to observe this warning may result in

property damage. Is not used for personal injury.

Arrangement and typographic structure of the warnings

Type of hazard and respective source!

Potential consequence(s) in case of non-observance (option)
→ Measures to avoid the danger
→ Further measure(s)

Safety alert symbol warns of a potential personal injury hazard.

The signal word (here: DANGER) indicates the level of hazard.
1.4. References and symbols

The following references and symbols are used in these instructions:

Information The term Information preceding the text indicates important notes and information.

Symbol for CLOSED (valve closed)

Symbol for OPEN (valve open)
Important information before the next step. This symbol indicates what is required
for the next step or what has to be prepared or observed.

5
 GS 50.3 – GS 250.3
Safety instructions

<> Reference to other sections

Terms in brackets shown above refer to other sections of the document which provide
further information on this topic. These terms are either listed in the index, a heading
or in the table of contents and may easily be located.

6
GS 50.3 – GS 250.3
Identification

2. Identification
2.1. Name plate
Figure 1: Arrangement of name plates

[1] Gearbox name plate

[2] Additional plate, e.g. KKS plate (Power Plant Classification System)

Description of gearbox name plate

Figure 2: Gearbox name plate (example GS 250.3)

[1] Name of manufacturer

[2] Address of manufacturer
[3] Type designation - valve attachment (flange)
[4] Order number
[5] Serial number
[6] Reduction ratio
[7] Factor
[8] Max. valve torque (output torque)
[9] Type of lubricant
[10] Permissible ambient temperature
[11] Explosion-proof version (option)
[12] Can be assigned as an option upon customer request
[13] Enclosure protection
[14] Duty class
[15] Version
[16] Swing angle
[17] Data Matrix code

Type designation Figure 3: Type designation (example)

1. Type and size of gearbox

7
 GS 50.3 – GS 250.3
Identification

2. Flange size for valve attachment

Type and size
These instructions apply to the following device types and sizes:
Part-turn gearboxes of type GS, sizes 50.3 – 250.3

Order number The product can be identified using this number and the technical data as well as
order-related data pertaining to the device can be requested.
Please always state this number for any product inquiries.
On the Internet at http://www.auma.com, we offer a service allowing authorised
users to download order-related documents such as wiring diagrams and technical
data (both in German and English), inspection certificates and the operation
instructions when entering the order number.

Serial number
Description of the serial number (with the example of 0512CG12345)
05 15 CG12345
05 Positions 1 + 2 : Assembly in week = week 05
15 Positions 3 + 4 : Year of manufacture = 2015
CG12345 Internal number for unambiguous product identification

Reduction ratio The reduction ratio within gearing and primary reduction gearing reduces the required
input torques and increases the operating time.
Factor Mechanical conversion factor for actuator size determination:
Input torque = required valve torque (output torque)/factor
Type of lubricant AUMA abbreviation for type of lubricant used in the gear housing.

Danger of explosion when using inappropriate lubricant in potentially explosive

atmospheres!
→ Do not use gearboxes with F21 lubricant in potentially explosive atmospheres.
→ Do not mix different lubricants.

Duty class The duty class specifies the application range of a gearbox relating to the lifetime
requirements. The duty class is only specified for gearboxes in operation mode class
A (OPEN-CLOSE duty).
● Duty class 1: suitable for motor operation, meets the lifetime requirements of
EN 15714-2
● Duty class 2: suitable for motor operation of rarely or infrequently operated
valves which do not exceed 1,000 operations across their total lifetime.
● Duty class 3: suitable (exclusively) for manual operation with approximately
250 operations, in compliance with the specified lifetime requirements in EN
1074-2.
Please refer to separate Technical data for further information on duty classes.
Version The first letter of the version indicates the position of the worm shaft in relation to
the worm wheel (view on input shaft).
The second letter indicates the direction of rotation at the output drive (view on
housing cover) for clockwise rotation at the input shaft.

8
GS 50.3 – GS 250.3
Identification

Versions: Worm shaft position and direction of rotation of output drive GS 50.3 – GS 250.3
RR LL RL LR

Description of the four different versions (view on housing cover):

Initials Direction of rotation at input shaft Position of worm shaft Direction of rotation at output drive
RR Clockwise Right Clockwise
LL Clockwise Left Counterclockwise
RL Clockwise Right Counterclockwise
LR Clockwise Left Clockwise

Data Matrix code When registered as authorised user, you may use the AUMA Support App to scan
the Data Matrix code and directly access the order-related product documents without
having to enter order number or serial number.
Figure 4: Link to the App store:

2.2. Short description

AUMA worm gearboxes are part-turn gearboxes converting a rotary movement at

the input shaft into a part-turn movement at the output drive. The worm gearboxes
are driven either via electric motor (by means of a multi-turn actuator) or manually
(e.g. via a handwheel). The required input torques are reduced due to high reduction
ratios. In standard version, internal end stops limit the swing angle to 100°.
Worm gearboxes are available in different versions to implement various mounting
conditions and rotary directions.

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 GS 50.3 – GS 250.3
Transport, storage and packaging

3. Transport, storage and packaging

3.1. Transport
For transport to place of installation, use sturdy packaging.

The coupling is not secured within the gearbox. Risk of falling out!
Injury hazard.
→ Remove coupling from gearbox housing prior to transport.

Figure 5: Coupling

Hovering load!
Risk of death or serious injury.
→ Do NOT stand below hovering load.
→ Attach ropes or hooks for the purpose of lifting by hoist only to housing and NOT
to handwheel.
→ Check eyebolts for tight seat in housing (verify reach of the screws).
→ Observe manufacturer specifications for fixing lifting straps and round slings.
→ Respect total weight of combination (gearbox, primary reduction gearing, actu-
ator).

Information Up to size 125.3, gearboxes are not equipped with special transport threads. Sus-
pension is possible using lifting straps/round slings.
From size 160.3, transport threads are provided for fixing with eyebolts. Eyebolts
are not included in the scope of delivery.

Examples of transport without actuator

Figure 6: Example of GS 50.3 – GS 125.3

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GS 50.3 – GS 250.3
Transport, storage and packaging

Figure 7: Examples of GS 160.3 – GS 250.3

[1] Worm shaft placed horizontally, with 2 eyebolts

[2] Worm shaft placed vertically, with one eyebolt

Examples of transport with mounted actuator/actuator controls

Figure 8: Examples of GS 50.3 – GS 125.3, vertical suspension

[1] Sizes 50.3 – 80.3, as well as 100.3/125.3 with i = 52:1/107:1

[2] Sizes 100.3/125.3 with i = 126:1/160:1/208:1
Place lifting straps/slings around the flange!

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 GS 50.3 – GS 250.3
Transport, storage and packaging

Figure 9: Example of GS 50.3 – GS 250.3, horizontal suspension

Strap/sling arrangement
[1] View on front
[2] View on rear

Table 1:
Weights including grease filling in gear housing
Type Standard version Version with base and lever
[kg]1) [kg]
GS 50.3 7 10
GS 63.3 12 23
GS 80.3 16 29
GS 100.3 (52:1/107:1) 33 58
GS 100.3 (126:1/160:1/208:1) 39 64
GS 125.3 (52:1) 40 89
GS 125.3 (126:1/160:1/208:1) 46 95
GS 160.3 (54:1) 80 139
GS 160.3 (218:1/442:1/880:1) 91 150
GS 200.3 (53:1) 140 258
GS 200.3 (214:1/434:1) 160 278
GS 200.3 (864:1/1 752:1) 170 288
GS 250.3 (52:1) 273 467
GS 250.3 (210:1/411:1) 296 490
GS 250.3 (848:1/1 718:1) 308 502
Additional weights when mounting extension flanges
F30 for GS 125.3 18
F35 for GS 160.3 33
F40 for GS 200.3 48
F48 for GS 250.3 75

1) Specified weight includes unmachined coupling

3.2. Storage

Danger of corrosion due to inappropriate storage!

→ Store in a well-ventilated, dry room (maximum humidity 70 %).
→ Protect against floor dampness by storage on a shelf or on a wooden pallet.
→ Cover to protect against dust and dirt.
→ Apply suitable corrosion protection agent to uncoated surfaces.

Long-term storage For long-term storage (more than 6 months), observe the following points:

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GS 50.3 – GS 250.3
Transport, storage and packaging

1. Prior to storage:
Protect uncoated surfaces, in particular the output drive parts and mounting
surface, with long-term corrosion protection agent.
2. At an interval of approx. 6 months:
Check for corrosion. If first signs of corrosion show, apply new corrosion protec-
tion.
3.3. Packaging
Our products are protected by special packaging for transport when leaving the
factory. The packaging consists of environmentally friendly materials which can easily
be separated and recycled. We use the following packaging materials: wood,
cardboard, paper, and PE foil. For the disposal of the packaging material, we
recommend recycling and collection centres.

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 GS 50.3 – GS 250.3
Assembly

4. Assembly

4.1. Mounting position

The gearboxes described here can be operated without restriction in any mounting
position.

4.2. Handwheel fitting

Gearboxes designed for manual operation are supplied with a separate handwheel.
Fitting is performed on site according to the description below.
Figure 10: Handwheel

[1] Retaining ring for input shaft (partly required)

[2] Gear input shaft
[3] Spacer (partly required)
[4] Handwheel
[5] Spacer (partly required)
[6] Retaining ring
[7] Ball handle

1. For input shafts with keyway: Place retaining ring [1] onto input shaft [2].
2. If required, fit spacer [3].
3. Slip handwheel [4] onto input shaft.
4. If required, fit spacer [5].
5. Secure handwheel [4] using the retaining ring [6] supplied.
6. Fit ball handle [7] to handwheel.
4.3. Chainwheel: mount
For gearboxes to be operated via chainwheel, the chainwheel is supplied separately.
Fitting is performed on site according to the description below.
Information Use in explosion-proof atmospheres is not permitted!
Gearboxes supplied without chainwheel can be retrofitted with a chainwheel. For
sizes 50.3 – 80.3, a special bearing cover is to be mounted for retrofitting.

14
GS 50.3 – GS 250.3
Assembly

4.3.1. Chainwheel for gearboxes GS 50.3 – GS 80.3: mount

Figure 11: Mount chain guide and chainwheel

[1] Thrust washers

[2] Chain guide
[3] Retaining ring for chain guide
[4] Retaining rings for chainwheel

Chain guide 1. Fit thrust washer [1] on input shaft.

2. Fit chain guide [2].
3. Fit second thrust washer [2].
4. Secure chain guide with retaining ring [3].
Chainwheel 5. Fit retaining ring [4] on input shaft.
6. Place chainwheel onto input shaft.
7. Secure chainwheel with second retaining ring [4].
Chain Figure 12: Mount chain

8. Pull chain through chain guide and place across chainwheel.

9. Connect chain ends with spare chain link.
Information: Do not twist chain!

15
 GS 50.3 – GS 250.3
Assembly

4.3.2. Chainwheel for gearboxes GS 100.3 – GS 250.3: mount

Figure 13: Mount chain guide and chainwheel

[1] Thrust washers

[2] Washer
[3] Chain guide
[4] Retaining rings for chainwheel

Chain guide 1. Fit thrust washer [1] on input shaft.

2. Also place washer [2].
3. Fit chain guide [3].
4. Fit second thrust washer [2].
5. Fasten chain guide with 4 screws.
Chainwheel 6. Fit retaining ring [4] on input shaft.
7. Place chainwheel onto input shaft.
8. Secure chainwheel with second retaining ring [4].
Chain Figure 14: Mount chain

9. Pull chain through chain guide and place across chainwheel.

10. Connect chain ends with spare chain link.
Information: Do not twist chain!

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GS 50.3 – GS 250.3
Assembly

4.4. Multi-turn actuators for motor operation

Refer to the operation instructions pertaining to the multi-turn actuator for indications
on how to mount multi-turn actuators to gearboxes.
This chapter supplies basic information and instructions which should be considered
in addition to the operation instructions of the multi-turn actuator.
Screws to actuator

Screws are included in the scope of delivery of the gearbox for mounting AUMA
multi-turn actuators. When mounting other actuators, the screws might be either too
long or too short (insufficient reach of screws).

Risk of actuator falling off in case inappropriate screws used should shear.
Risk of death or serious injury!
→ Check length of screws.
→ Only use screws with strength class specified herein.

The reach of screws must be sufficient for the internal threads to ensure the
supporting strength of the device and to accept the lateral forces due to the applied
torque.
Screws which are too long could make contact with the housing parts, presenting
the risk that the device performs a radial shift with respect to the gearbox. This can
lead to shearing of the screws.
4.4.1. Mounting positions Multi-turn actuators with part-turn gearboxes

Mounting positions A – D for multi-turn actuators with part-turn gearboxes

GS versions RR and LL
A B C1) D

GS versions LL and LR
A1) B C D

1) Caution: For multi-turn actuators SA/SAR 14.2 and 14.6 with GS 125.3, mounting position C is not possible for RR and RL versions;
mounting position A is not possible for LL and LR versions.

Please consider possible space constraints on site when selecting the mounting
position.
Mounting positions may easily be changed at a later date.

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 GS 50.3 – GS 250.3
Assembly

Up to size GS 125.3, the multi-turn actuator-gearbox combination is delivered in the

ordered mounting position. For packing reasons, actuator and gearbox will be
delivered separately from size GS 160.3.
4.4.2. Input mounting flange: mount
An input mounting flange is required for mounting a multi-turn actuator. Depending
on the version, the flange for mounting the multi-turn actuator is already fitted in the
factory.

Table 2:
Suitable input mounting flanges
Gearboxes Reduction ratio Input shaft Input mounting flange for mounting multi-turn actuators
[mm] EN ISO 5210 DIN 3210
GS 50.3 51:1 16 F07, F10 G0
51:1 20
GS 63.3 F07, F10 G0
82:1 20
53:1 20
GS 80.3 F07, F10 G0
82:1 20
52:1 30/(20) F14 (F10) G1/2 (G0)
107:11) 30 F14 (F10) G1/2 (G0)
GS 100.3 126:11) 30 F10 G0
260:11) 30 F10 G0
208:11) 30 F10 G0
52:1 30 F14 G1/2
126:11) 30/(20) F14 (F10) (G0)
GS 125.3
160:11) 30/(20) F14 (F10) (G0)
208:11) 20 F10, F14 G0
54:1 30 F16 (F14) G3 (G1/2)
218:11) 30/(20) F14 (F10) G1/2 (G0)
GS 160.3
442:11) 20 F10 G0
880:11) 20 F10 G0
53:1 40 F25 (F16) (G3)
1) 30 F14 G1/2
GS 200.3 434:11) 30/(20) F14 (F10) G1/2 (G0)
864:11) 20 F14 G0
1,752:11) 20 F10 G0
52:1 50 F30 (F25) –
210:11) 40/(30) F16 (F14) G3 (G1/2)
GS 250.3 411:11) 30 F14 G1/2
848:11) 30/(20) F14 (F10) G1/2 (G0)
1 718:11) 20 F10 G0

1) Equipped with primary reduction gearing or planetary gearing to reduce input torques.

Assembly steps 1. Clean mounting faces, thoroughly degrease uncoated mounting surfaces.
Figure 15: Mounting example, input mounting flange fitted to gearbox with primary
reduction gearing

[1] Gearbox with primary reduction gearing

[2] Parallel pin
[3] Input mounting flange
2. Mount parallel pin [2].

18
GS 50.3 – GS 250.3
Assembly

3. Place input mounting flange [3] and fasten with screws.

4. Fasten screws crosswise to a torque according to table.
Table 3:
Tightening torques for screws (for mounting multi-turn actuator and input mounting flange)
Threads Tightening torque Nm]
Strength class A2-80
M8 24
M10 48
M12 82
M16 200
M20 392

5. Mount AUMA actuator in compliance with the operation instructions pertaining

to the multi-turn actuator.
4.5. Gearbox to valve: mount

The gearbox is mounted to the valve using a coupling (standard) or via lever. Separate
instructions are available for actuator mounting to the valve when equipped with
base and lever.
4.5.1. Output drive for coupling

Application ● For valve attachments according to EN ISO 5211

● For rotating, non-rising valve stem
Design Figure 16: Valve attachment via coupling

[1] Gearbox worm wheel with internal splines

[2] Splined plug-in coupling
[3] Valve shaft (example with key)

4.5.1.1. Gearbox with coupling: mount to valve

Unbored couplings or couplings with pilot bore must be machined to match the valve
shaft prior to mounting the gearbox to the valve (e.g. with bore and keyway, two-flat
or square bore).
Information Assemble valve and gearbox in the same end position. As a standard, the gearbox
is supplied in end position CLOSED.
● Recommended mounting position for butterfly valves: End position CLOSED.
● Recommended mounting position for ball valves: End position OPEN.

Assembly steps 1. If required, move gearbox in same end position as valve using the handwheel.
2. Clean mounting faces, thoroughly degrease uncoated mounting surfaces.
Information: To avoid contact corrosion, we recommend applying a surface
sealing agent on the uncoated contact surfaces for gearboxes without powder
coating.

19
 GS 50.3 – GS 250.3
Assembly

3. Apply a small quantity of grease to the valve shaft [2].

4. Place coupling [1] onto valve shaft [2] and secure against axial slipping by using
a grub screw [3] or a clamping washer and a screw with curved spring lock
washer [4]. Thereby, ensure that dimensions X, Y or L are observed (refer to
figure and table <Mounting positions for coupling>).
Figure 17: Examples: Fit coupling

[1] Coupling
[2] Valve shaft
[3] Grub screw
[4] Clamping washer and screw with curved spring lock washer
Figure 18: Mounting positions for coupling

Table 4:
Dimensions [mm] GS 50.3 GS 63.3 GS 80.3 GS 100.3 GS 125.3
EN ISO 5211 F05 F10 F10 F12 F12 F14 F14 F16 F16 F25 F301)
X max. 6 14 7 10 13 23 22 22 17 17 35
Y max. 5 5 18 13 18 5 13 8 35 27 0
L max. 61 61 61 73 76 78 88 123 123 126 126

1) Extension flange, extended coupling required

Table 5:
Dimensions [mm] GS 160.3 GS 200.3 GS 250.3
EN ISO 5211 F25 F301) F35 F30 F35 F401) F35 F40 F481)
X max. 15 30 30 19 44 44 8 13 20
Y max. 11 0 0 19 0 0 8 0 5
L max. 130 140 130 160 190 160 220 230 220

1) Extension flange, extended coupling required

20
GS 50.3 – GS 250.3
Assembly

5. Apply non-acidic grease at splines of coupling (e.g. Gleitmo by Fuchs).

6. Experience showed that it is very difficult to fasten screws or nuts of size M30
or larger at defined torques. There is a risk that the worm gearbox might shift
radially with regard to the valve mounting flange. To improve adhesion between
valve and gearbox, we recommend applying Loctite 243 (or similar adhesive
products) to the mounting faces of screws and nuts from size M30.
7. Fit gearbox. If required, slightly turn gearbox until splines of coupling engage.
Figure 19:

Information Ensure that the spigot (if provided) fits uniformly in the recess and that the flanges
are in complete contact.

8. If flange bores do not match thread:

8.1 Slightly rotate handwheel until bores line up.
8.2 If required, shift gearbox position by one tooth on the coupling.
9. Fasten gearbox with screws.
Information: We recommend applying liquid thread sealing material to the
screws to avoid contact corrosion.
10. Fasten screws crosswise to a torque according to table.
Table 6:
Tightening torques for screws
Threads Tightening torque Nm]
Strength class
A2-70/A4-70 A2-80/A4-80
M6 8 10
M8 18 24
M10 36 48
M12 61 82
M16 150 200
M20 294 392
M30 564 1,422
M36 2,098 2,481

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 GS 50.3 – GS 250.3
Indications

5. Indications
5.1. Mechanical position indicator/running indication
Mechanical position indicator:
● continuously indicates the valve position
(pointer cover [2] follows the valve movement)
● indicates whether the actuator is moving (running indication)
● indicates that end positions have been reached
(mark on pointer cover [3] points to symbols OPEN [4] or CLOSED [5])
Figure 20: Mechanical position indicator

[1] Housing cover

[2] Pointer cover
[3] Indicator mark
[4] Symbol for position OPEN
[5] Symbol for position CLOSED

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GS 50.3 – GS 250.3
Commissioning

6. Commissioning

6.1. End stops in gearbox

The internal end stops limit the swing angle and protect the valve against overload.
End stop setting is generally performed by the valve manufacturer prior to installing
the valve into the pipework.

Exposed, rotating parts (discs/balls) at the valve!

Pinching and damage at the valve.
→ End stops should be set by suitably qualified personnel only.
→ Set end stops as to ensure that they are NOT reached during normal operation.

Information The setting sequence depends on the valve:

● Recommendation for butterfly valves: Set end stop CLOSED first.
● Recommendation for ball valves: Set end stop OPEN first.

Information ● In general, gearboxes with a swing angle > 190° are multi-turn (without end
stops). Consequently, end position setting is not possible. Therefore, no protect-
ive function is available for the valve.
● In general, only one end stop (either OPEN or CLOSED) must be set, due to
the fact that the swing angle was already set in the factory.

6.1.1. End stop CLOSED: set

Figure 21: End stop (left: up to size 125.3, right: from size 160.3)

[1] Screws
[2] End stop
[3] Housing

1. Remove the four screws [1] at end stop [2].

No overload protection at valve for unfastened end stop!

→ In motor operation: Stop travel before reaching the valve end position (consider
overrun).
→ The last part of the travel must be completed in manual operation mode.

2. Turn valve via handwheel to position CLOSED. Check whether end stop [2]
rotates simultaneously.
→ Otherwise: Turn end stop [2] clockwise to the stop.

23
 GS 50.3 – GS 250.3
Commissioning

3. With mounted multi-turn actuator (not required for manual operation): Turn end
stop [2] counterclockwise by 1/4 turn.
➥ This ensures that the gearbox end stop cannot be approached during motor
operation if a multi-turn actuator is mounted and that the valve can close tightly
for torque seating.
4. In case the four holes of the end stop [2] do not match the four threaded bores
within the housing [3]: Remove end stop [2] until it disengages from the toothing
and replace in correct position.
5. Fasten screws [1] crosswise with a torque according to table <Tightening torques
for screws at end stop> .
Table 7:
Tightening torques for screws at end stop
Gearbox Screws [1] Tightening torque TA [Nm]
GS 50.3 M6 10
GS 50.3 – GS 80.3 M8 24
GS 100.3 – GS 125.3 M12 82
GS 160.3 M10 48
GS 200.3 M12 82
GS 250.3 M16 200

Further settings hereafter:

● If the gearbox is equipped with a pointer cover: Check whether the mark aligns
with the symbol CLOSED. Refer to <Mechanical position indicator: set>.
● If the gearbox is mounted to a multi-turn actuator, set the seating in end position
CLOSED straight after completion of the current setting: <Seating in end posi-
tions via multi-turn actuator>.
6.1.2. End stop OPEN: set

Figure 22: End stop (left: up to size 125.3, right: from size 160.3)

[1] Screws
[2] End stop
[3] Housing

1. Remove the four screws [1] at end stop [2].

No overload protection at valve for unfastened end stop!

→ In motor operation: Stop travel before reaching the valve end position (consider
overrun).
→ The last part of the travel must be in manual operation mode.

2. Turn valve via handwheel in position OPEN. Check whether end stop [2] rotates
simultaneously.
→ Otherwise: Turn end stop [2] counterclockwise to the stop.

24
GS 50.3 – GS 250.3
Commissioning

3. With mounted multi-turn actuator (not required for manual operation): Turn end
stop [2] clockwise by 1/4 turn.
➥ This ensures that the gearbox end stop cannot be approached during motor
operation if a multi-turn actuator is mounted and that the valve can close tightly
for torque seating.
4. In case the four holes of the end stop [2] do not match the four threaded bores
within the housing [3]: Remove end stop [2] until it disengages from the toothing
and replace in correct position.
5. Fasten screws [1] crosswise with a torque according to table <Tightening torques
for screws at end stop>.
Further settings hereafter:
● If the gearbox is equipped with a pointer cover: Check whether the mark aligns
with the symbol OPEN. Refer to <Mechanical position indicator: set>.
● If the gearbox is mounted to a multi-turn actuator, set the seating in end position
OPEN straight after completion of the current setting: <Seating in end positions
via multi-turn actuator>.
6.2. Seating in end positions via multi-turn actuator
This chapter supplies basic information and notes which should be considered in
addition to the operation instructions of the multi-turn actuator.
● The valve manufacturer has to determine whether the valve is limit or torque
seated.
● End position seating must be set in compliance with the operating instructions
pertaining to the multi-turn actuator.
● When setting the torque switching within the multi-turn actuator, make sure that
the tripping torque for both directions does not exceed the max. gearbox input
torque (refer to technical data or name plate).
● Set the torque switching within the multi-turn actuator to the following value to
prevent damage to the valve:
Tripping torque = valve torque/factor (refer to name plate)
● If the swing angle set in the factory for opening and closing the valve is not
sufficient: refer to <Swing angle>.
6.2.1. Seating in end position CLOSED: set

1. Move valve to end position CLOSED.

Information: The last part of the travel must be in manual operation mode!
2. For limit seating in end position CLOSED:
2.1 Turn back the valve from the valve end position by an amount equal to
the overrun.
2.2 Set limit switching for the end position CLOSED according to the operation
instructions for the multi-turn actuator.
3. For torque seating in end position CLOSED:
3.1 Gearbox without primary reduction gearing: Turn handwheel in the opposite
direction of the valve end position by approx. 4 – 6 turns.
3.2 Gearbox with primary reduction gearing: Turn handwheel in the opposite
direction of the valve end position by approx. 10 – 15 turns.
3.3 Check torque switching for end position CLOSED according to operation
instructions for multi-turn actuator and, if necessary, set to required value.
3.4 Set limit switching for signalling end position CLOSED according to oper-
ation instructions for multi-turn actuator.

25
 GS 50.3 – GS 250.3
Commissioning

6.2.2. Seating in end position OPEN: set

1. Move valve to end position OPEN.

Information: The last part of the travel must be in manual operation mode!
2. For limit seating in end position OPEN:
2.1 Turn back the valve from the valve end position by an amount equal to
the overrun.
2.2 Set limit switching for end position OPEN according to the operation in-
structions for the multi-turn actuator.
3. For torque seating in end position OPEN:
3.1 Gearbox without primary reduction gearing: Turn handwheel in the opposite
direction of the valve end position by approx. 4 – 6 turns.
3.2 Gearbox with primary reduction gearing: Turn handwheel in the opposite
direction of the valve end position by approx. 10 – 15 turns.
3.3 Check torque switching for end position OPEN according to operation in-
structions for multi-turn actuator and, if necessary, set to required value.
3.4 Set limit switching for signalling end position OPEN according to operation
instructions for multi-turn actuator.

6.3. Swing angle

The swing angle must only be changed if the swivel range for end stop setting is not
sufficient.
Figure 23: Name plate indicating the swing angle

Versions Sizes GS 50.3 – GS 125.3 = adjustable swing angle - option

Sizes GS 160.3 – GS 250.3 = adjustable swing angle - standard
Accuracy Sizes GS 50.3 – GS 125.3 = 0.6°
Sizes GS 160.3 – GS 250.3 = 0.11° up to 0.14°

6.3.1. Swing angle: modify at gearboxes up to size 125.3

The adjustment is made in end position OPEN.

Special tools: Pin driver for spring-type straight pin
● for GS 50.3 (AUMA art. no. V001.367-Pos.003)
● for GS 63.3 – GS 80.3 (AUMA art. no. V001.367-Pos.002)
● for GS 100.3 – GS 125.3 (AUMA art. no. V001.367-Pos.001)

26
GS 50.3 – GS 250.3
Commissioning

Figure 24: End stop (figure shows size 80.3)

[1] Protective cap

[2] End stop
[3] Spring-type straight pin
[4] End stop nut
[5] Pairs of safety wedge discs (for OPEN and CLOSE)

1. Unscrew protective cap [1] at end stop [2].

2. Remove spring-type straight pin [3] with suitable pin driver (special tool).
3. Swing angle increase:
3.1 Turn end stop nut [4] counterclockwise.
Information: When turning counterclockwise the end stop nut [4] make
sure that the spring-type straight pin [3] can still be tapped within the oblong
hole.
3.2 Move valve manually to the desired end position OPEN.
3.3 Turn end stop nut [4] clockwise until it is tight to the travelling nut.
4. Swing angle reduction:
4.1 Move valve manually to the desired end position OPEN.
4.2 Turn end stop nut [4] clockwise until it is tight to the travelling nut.
Information: Spring-type straight pin [3] must remain completely covered
by end nut [4].
5. Drive in the spring-type straight pin [3] using the appropriate tool.
→ If the slot provided in the end stop nut [4] does not align with the bore of
the worm shaft: Turn end stop nut [4] slighty counterclockwise until the
hole is aligned; then drive in spring-type straight pin [3].
6. Check whether O-ring at protective cap is in good condition, replace if damaged.
7. Fasten protective cap [1].
Information If the gearbox is mounted to a multi-turn actuator, the limit switching for the end po-
sition OPEN must be set first in compliance with the operation instructions of the
multi-turn actuator. Allow for overrun!

6.3.2. Swing angle: modify at gearboxes from size 160.3

Adjustments are generally made in end position OPEN.

27
 GS 50.3 – GS 250.3
Commissioning

Figure 25: End stop (figure shows size 200.3)

[1] Screws
[2] Protective cap
[3] Screw with curved spring lock washer
[4] Clamping washer
[5] Setting ring
[6] End stop nut
[7] Travelling nut
[8] Pairs of safety wedge discs (for OPEN and CLOSE)

1. Remove all four screws [1] and pull off protective cap [2].
2. Remove the screw with the curved spring lock washer [3] and clamping washer
[4].
3. Pull off setting ring [5].
4. Swing angle increase:
4.1 Turn end stop nut [6] counterclockwise.
4.2 Move valve manually to the desired end position OPEN.
4.3 Turn end stop nut [6] clockwise until it is tight to the travelling nut [7].
5. Swing angle reduction:
5.1 Move valve manually to the desired end position OPEN.
5.2 Turn end stop nut [6] clockwise until it is tight to the travelling nut [7].
6. Fit setting ring [5], secure with clamping washer [4], as well as screw and curved
spring lock washer [3].
7. Check whether O-ring at protective cap is in good condition, replace if damaged.
8. Place protective cap [2] and fasten screws [1] crosswise with a torque according
to table <Tightening torques for screws at end stop>.
Information If the gearbox is mounted to a multi-turn actuator, the limit switching for the end po-
sition OPEN must be set first in compliance with the operation instructions of the
multi-turn actuator.

6.4. Mechanical position indicator: set

End position CLOSED 1. Move valve to end position CLOSED and check setting.
➥ The setting is correct if the mark aligns with the symbol CLOSED.

28
GS 50.3 – GS 250.3
Commissioning

2. If the mark position is not correct:

2.1 Slightly loosen screws [1] at pointer cover [two screws up to size 125.3,
four screws as from size 160.3).
2.2 Turn pointer cover to symbol for position CLOSED [5].
2.3 Fasten screws again.
End position OPEN 3. Move valve to end position OPEN and check setting.
➥ The setting is correct if the mark aligns with the symbol OPEN.

29
 GS 50.3 – GS 250.3
Servicing and maintenance

7. Servicing and maintenance

Damage caused by inappropriate maintenance!

→ Servicing and maintenance must be carried out exclusively by suitably qualified
personnel having been authorised by the end user or the contractor of the plant.
Therefore, we recommend contacting our service.
→ Only perform servicing and maintenance tasks when the device is switched off.

AUMA
AUMA offers extensive service such as servicing and maintenance as well as
Service & Support customer product training. For the relevant contact addresses, please refer to
<Addresses> in this document or to the Internet (www.auma.com)

7.1. Preventive measures for servicing and safe operation

● Before commissioning, perform visual inspection for grease leakage and paint
damage (corrosion).
● Thoroughly touch up any possible damage to paint. Original paint in small
quantities can be supplied by AUMA.
7.2. Maintenance intervals
Recommendation for plants subject to strong vibration
● For plants subject to strong vibration, 6 months after commissioning and then
once a year: Check fastening screws between actuator and gearbox/valve for
tightness. If required, fasten screws while applying the tightening torques as
indicated in chapter <Assembly>. For screws sealed and secured with e.g.
thread sealing material, this action is not required.
Recommendation for grease change and seal replacement:
● If rarely operated (typically in buried service), the gearboxes are maintenance-
free. Grease change or re-lubrication is not necessary.
● If operated frequently (typically in modulating duty), we recommend changing
both grease and seals after 4 – 6 years.

Gearing damage due to using inappropriate grease!

→ Only use original lubricants supplied by AUMA.
→ Do not mix lubricants.

Instructions for use in potentially explosive atmospheres of categories M2,

2G, 3G, 2D and 3D
● Imperatively heed the technical data, as well as the ambient temperatures, type
of duty and running times indicated on the name plate are observed.
● In potentially explosive atmospheres, in particular where combustible dust is
present, perform visual inspection for deposit of dirt or dust on a regular basis.
Clean devices if required.
● The pointer cover with indicator glass is only approved for use in potentially
explosive atmospheres according to ATEX II2G c IIB T4 or T3.
● When using mechanical microswitches (option), additionally observe the
mounting and wiring instructions of the manufacturer.
7.3. Disposal and recycling
Our devices have a long lifetime. However, they have to be replaced at one point in
time. The devices have a modular design and may, therefore, easily be separated
and sorted according to materials used, i.e.:
● electronic scrap
● various metals
● plastics

30
GS 50.3 – GS 250.3
Servicing and maintenance

● greases and oils

The following generally applies:
● Greases and oils are hazardous to water and must not be released into the
environment.
● Arrange for controlled waste disposal of the disassembled material or for sep-
arate recycling according to materials.
● Observe the national regulations for waste disposal.

31
 GS 50.3 – GS 250.3
Technical data

8. Technical data
Information The following tables include standard and optional features. For detailed information
on the customer-specific version, refer to the order-related data sheet. The technical
data sheet can be downloaded from the Internet in both German and English at ht-
tp://www.auma.com (please state the order number).

8.1. Technical data Part-turn gearboxes

General information
For motor or manual operation of valves (e.g. butterfly valves, ball and plug valves).
For special applications, e.g. dampers, gas diverters, flue gas dampers, toggle arm driven diverters and guillotine isolators, specific sizing
is required. Separate technical data apply for these applications.

Features and functions

Worm wheel material For open-close duty: Spheroidal cast iron
For modulating duty: Bronze
Version Standard: Clockwise rotation RR, counterclockwise rotation LL
Option: RL or LR
Housing material Standard: Cast iron (GJL-250)
Option: Spheroidal cast iron (GJS-400-15)
Self-locking The gearboxes are self-locking when at standstill under normal service conditions; strong vibration may
cancel the self-locking effect. While in motion, safe breaking is not guaranteed. If this is required, a
separate brake must be used.
End stops Positive for both end positions by travelling nut, sensitive adjustment
Strength of end stop Guaranteed strength of end stop (in Nm) for input side operation

Type GS 50.3 GS 63.3 GS 80.3 GS 100.3

Reduction ratio 51:1 51:1 53:1 52:1 126:1 160:1 208:1
[Nm] 250 450 450 1,350 625 500 250

Type GS 125.3 GS 160.3

Reduction ratio 52:1 126:1 160:1 208:1 54:1 218:1 442:1 880:1
[Nm] 1,350 625 500 250 3,200 900 450 250

Type GS 200.3
Reduction ratio 53:1 67:1 214:1 434:1 864:1 1752:1
[Nm] 8,000 250 2,000 1,000 500 250

Type GS 250.3
Reduction ratio 52:1 210:1 411:1 848:1 1718:1
[Nm] 8,000 2,000 1,000 500 250

Swing angle GS 50.3 – GS 125.3 Standard: Fixed swing angle between 10° and max. 100°; set in the factory to 92° unless ordered
otherwise.
Options: Adjustable in steps of:
10° – 35°, 35° – 60°, 60° – 80°, 80° – 100°, 100° – 125°, 125° – 150°, 150° – 170°,170°
– 190°
Swing angles > 190° are only possible with a worm wheel made of bronze and without
end stops. For swing angles > 100°, we recommend a worm wheel made of bronze.
Worm wheel made of bronze; Multi-turn version without end stop, up to max. 10 turns of
worm wheel permissible Heed special sizing!
Swing angle GS 160.3 – GS 250.3 Standard: Adjustable 80° – 100°; set in the factory to 92° unless ordered otherwise.
Options: Adjustable in steps of:
0° – 20°, 20° – 40°, 40° – 60°, 60° – 80°, 90° – 110°, 110° – 130°, 130° – 150°, 150° –
170°, 170° – 190°
Swing angles > 190° are only possible with a worm wheel made of bronze and without
end stops. For swing angles > 100°, we recommend a worm wheel made of bronze.
Worm wheel made of bronze; Multi-turn version without end stop, up to max. 10 turns of
worm wheel permissible. Heed special sizing!
Swing angle for special reduction Standard: Adjustable 80° – 100°; set in the factory to 92° unless ordered otherwise.
ratio Options: Swing angle range different from standard range available on request
(worm wheel made of bronze only) Multi-turn version without end stop, up to max. 10 turns of worm wheel permissible. Heed
special sizing!

32
GS 50.3 – GS 250.3
Technical data

Features and functions

Mechanical position indicator Standard: Pointer cover for continuous position indication
Options: ● Sealed pointer cover for horizontal outdoor installation (not available for GS 50.3)
● Protection cover for buried services instead of pointer cover (without mechanical pos-
ition indicator)
● Sealed pointer cover with air vent valve, not available for GS 50.3
Observe notes on Information sheet Enclosure protection IP68 for part-turn gearboxes
Input shaft Cylindrical with parallel key according to DIN 6885-1

Operation
Motor operation ● Via electric multi-turn actuator
● Input mounting flanges for multi-turn actuator

Type of duty Open-close duty Short-time duty S2 - 15 min

Class A according to EN 15714-2: OPEN-CLOSE
Class B according to EN 15714-2: Inching/positioning or positioning duty
Type of duty Modulating duty Intermittent duty S4 - 25 %
Class C according to EN 15714-2: Modulating duty
Maximum permissible input speeds In modulating duty: 215 rpm
and operating times In open-close duty:

Type GS GS 63.3 GS 80.3 GS 100.3

50.3
Reduction ratio 51:1 51:1 82:1 53:1 82:1 52:1 107:1 126:1 160:1 208:1
Max. permissible
108 108 108 108 216
input speed [rpm]
Fastest operating 7 7 11 7 11 7 15 9 11 19
time for 90° [s]

Type GS 125.3 GS 160.3

Reduction ratio 52:1 126:1 160:1 208:1 54:1 218:1 442:1 880:1
Max. permissible
108 216 108 216
input speed [rpm]
Fastest operating 7 9 11 19 8 15 31 61
time for 90° [s]

Type GS 200.3 GS 250.3

Reduction ratio 53:1 214:1 434:1 864:1 1752:1 52:1 210:1 411:1 848:1 1718:1
Max. permissible in-
108 216 108 216
put speed [rpm]
Fastest operating 7 15 30 60 122 7 15 29 59 119
time for 90° [s]

Shorter operating times can be achieved with worm wheels made of bronze, refer to Technical data GS
50.3 – GS 250.3 for modulating duty and shorter operating times.
Due to gear tooth geometry and the material characteristics of bronze, worm gearboxes with a worm
wheel made of bronze can transmit lower torques.
Calculation of operating time for a 90° swivel movement

Calculation of the operating time for a swivel movement   [°]:

33
 GS 50.3 – GS 250.3
Technical data

Operation
Manual operation Standard: ● Handwheel made of aluminium with electrophoretic coating
● Handwheel with ball handle

Option: ● Handwheel made of GJL-200 with electrophoretic coating and painting

● Handwheel lockable
● WSH for signalling position and end positions
● Chainwheel (only available for torques according to duty class 1)

Available handwheel diameters according to EN 12570, selection according to output torque:

Type GS GS GS GS 100.3 GS 125.3

50.3 63.3 80.3
Reduction ratio 51:1 51:1 53:1 52:1 126:1 160:1 208:1 52:1 126:1 160:1 208:1
Handwheel Ø [mm] 160 500
250 315 400 315 250 400 315
200 630
315 400 500 400 315 500 400
250 800

Type GS 160.3 GS 200.3

Reduction ratio 54:1 218:1 442:1 880:1 53:1 67:1 214:1 434:1 864:1 1752:1
Handwheel Ø [mm] 630 500
400 315 250 – 800 400 315 250
800 630

Type GS 250.3
Reduction ratio 52:1 210:1 411:1 848:1 1718:1
Handwheel Ø [mm] 500
– 800 400 315
630

Deflection of the input shaft

90° deflection of the input shaft
Combination with GK bevel gearbox directly mounted on GS or on planetary stage possible, refer to Mounting positions Part-turn gearboxes
with multi-turn actuators

Base and lever

Not suitable for load class 3.
Base Made of spheroidal cast iron; for mounting to base, 4 holes for fastening screws are available.
Lever Made of spheroidal cast iron; with 2 or 3 bores for fixing lever arrangement. Considering the environ-
mental conditions, the lever may be mounted to the output shaft in any desired position.
Ball joints Two ball joints matching the lever, as an option including lock nuts and 2 welding nuts; suitable for pipe
according to dimension sheet.
Mechanical position indicator Standard: No position indicator (protection cover)
Option: Pointer cover instead of protection cover for continuous position indication

34
GS 50.3 – GS 250.3
Technical data

Valve attachment
Valve attachment Dimensions according to EN ISO 5211: The maximum torques of mounting flanges according to EN
ISO 5211 are to be met.
Spigot Flanges with spigot. Up to GS 125.3, spigots are implemented by means of spigot rings (option). From
GS 160.3 to GS 250.3, spigots are directly integrated into the housing.
Plane flanges Up to GS 125.3, plane flanges are implemented by means of recesses. From GS 160.3 to GS 250.3,
the housing is plane machined (option).
Bore for parallel pins (option) Two bores for parallel pins shifted by 180°. The parallel pins are not included in the scope of delivery.

Type GS 80.3 GS 100.3 GS 125.3 GS 160.3

Flange according to
F12 F14 F14 F16 F16 F25 F30 F25 F30 F35
EN ISO 5211
Housing material GJS GJS GJS GJS GJL GJL GJL GJL GJL GJL

Type GS 200.3 GS 250.3

Flange according to
F30 F35 F40 F35 F40 F48
EN ISO 5211
Housing material GJL GJL GJL GJL GJL GJL

Refer to Dimensions Output mounting flange GS 50.3 – GS 125.3 (Y000.854) and Dimensions Output
mounting flange GS 160.3 – GS 250.3 (Y005.001). Further pitch circle diameters for locating pins on
request.
Splined coupling for connection to Standard: ● Without bore or pilot bore from GS 160.3
the valve shaft
● Worm gearbox can be mounted on coupling

Options: Finish machining with bore and keyway, square bore or two-flat with grub screw for secure
fixing to valve shaft.

Service conditions
Mounting position Any position
Ambient temperature Standard: –40 °C to +80 °C
Options: –60 °C to +60 °C
0 °C to +120 °C
Enclosure protection according to Standard: IP68, dust-tight and water-tight up to max. 8 m head of water
EN 60529 Options: IP68-20, dust-tight and water-tight up to max. 20 m head of water
Corrosion protection Standard: GS 50.3 – GS 80.3: KS
GS 100.3 – GS 250.3: KN
Options: GS 50.3 – GS 80.3: KX
GS 100.3 – GS 250.3: KS/KX
KN Suitable for installation in industrial units, in water or power plants with a low pollutant
concentration
KS Suitable for use in areas with high salinity, almost permanent condensation, and high
pollution.
KX Suitable for use in areas with extremely high salinity, permanent condensation, and high
pollution.
Coating GS 50.3 – GS 80.3: Double layer powder coating
GS 100.3 – GS 250.3: Two-component iron-mica combination
Colour AUMA silver-grey (similar to RAL 7037)
Option: Available colours on request

35
 GS 50.3 – GS 250.3
Technical data

Service conditions
AUMA load spectrum For open-close duty with worm wheel made of spheroidal cast iron:

For modulating duty with worm wheel made of bronze:

A start consists of one movement of minimum 1 % in both directions at a load of 35 % of the maximum
valve torque (modulating torque).
AUMA worm gearboxes meet or exceed the lifetime requirements of EN 15714-2.
Lifetime for motor operation in ac- For open-close duty with worm wheel made of spheroidal cast iron:
cordance with AUMA load spectrum Duty class 1: Lifetime for 90° swivel movement. Meets the lifetime requirement of EN 15714-2

Gearbox size GS 50.3/GS 63.3 GS 80.3/GS100.3 GS 125.3 – GS GS 250.3

200.3
Number of cycles
10,000 5,000 2,500 1,200
for max. torque

Duty class 2: Lifetime for 90° swivel movement for valves which are infrquently operated.

Gearbox size GS 50.3/GS 63.3 GS 80.3/GS100.3 GS 125.3 – GS GS 250.3

200.3
Number of cycles
1,000
for max. torque

Lifetime for larger swing angle on request

For modulating duty with worm wheel made of bronze:
1.2 million modulating steps
Lifetime for manual operation Duty class 3: Meets the lifetime requirement of EN 1074-2

36
GS 50.3 – GS 250.3
Technical data

Special features for use in potentially explosive atmospheres in accordance with ATEX 2014/34 EU
Explosion protection in accordance Standard: II2G c IIC T4
with ATEX 2014/34 EU II2D c T130 °C
Option II2G c IIC T3
II2D c T190 °C
IM2 c
Type of duty Maximum 3 cycles (OPEN - CLOSE - OPEN) in accordance with AUMA load spectrum (90° swivel
(open-close duty, with worm wheel movement) and maximum permissible input speeds, or with mean constant output torques according
made of spheroidal cast iron) to table:

Type GS 50.3 GS 63.3 GS 80.3 GS 100.3 GS

125.3
Reduction ratio – 51:1 82:1 53:1 82:1 – 107:1 –
Average output
250 500 375 1,000 750 2,000 1,400 4,000
torque [Nm]

Type GS 160.3 GS 200.3 GS 250.3

Average output
8,000 16,000 32,000
torque [Nm]

Type of duty Standard: Intermittent duty S4 – 25 % with modulating torque and max. input speed
(modulating duty with worm wheel
made of bronze) Type GS 50.3 GS 63.3 GS 80.3 GS 100.3
Reduction ratio 51:1 51:1 53:1 52:1 126:1 160:1 208:1
Max. speed at GS
input with SA 45 45 45 45 90 125 180
[rpm]

Type GS 125.3 GS 160.3

Reduction ratio 52:1 126:1 160:1 209:1 54:1 218:1 442:1 880:1
Max. speed at GS
input with SA 45 90 125 180 45 180 180 180
[rpm]

Type GS 200.3
Reduction ratio 53:1 67:1 214:1 434:1 864:1 1,752:1
Max. speed at GS
input with SA 11 11 45 90 180 180
[rpm]

Type GS 250.3
Reduction ratio 52:1 210:1 441:1 848:1 1,718:1
Max. speed at GS
input with SA 11 45 90 180 180
[rpm]

Exception: GS 200.3 with modulating torque up to 4,800 Nm

Option: GSD multi-turn version, specific sizing required; please contact AUMA.

37
 GS 50.3 – GS 250.3
Technical data

Special features for use in potentially explosive atmospheres in accordance with ATEX 2014/34 EU
Ambient temperature Duty classes 1 and 3
(open-close duty, with worm wheel Standard: –40 °C to +60 °C (II2G c IIC T4; II2D c T130 °C)
made of spheroidal cast iron)
Option –60 °C to +60 °C (II2G c IIC T4; II2D c T130 °C)
–40 °C to +40 °C (II2G c IIC T4; II2D c T130 °C)
–40 °C to +80 °C (II2G c IIC T3; II2D c T190 °C)
0 °C to +120 °C (II2G c IIC T3; II2D c T190 °C)
–20 °C to +40 °C (IM2 c)
Duty class 2
Standard: –40 °C to +60 °C (II2G c IIC T3; II2D c T190 °C); T4 on request with individual test
Option –60 °C to +40 °C (II2G c IIC T4; II2D c T130 °C)
–60 °C to +60 °C (II2G c IIC T3; II2D c T190 °C); T4 on request with individual test
–40 °C to +40 °C (II2G c IIC T4; II2D c T130 °C)
–40 °C to +80 °C (II2G c IIC T3; II2D c T190 °C)
–20 °C to +40 °C (IM2 c)
Further temperature classes or loads exceeding the average torque of the AUMA load spectrum on re-
quest.
Ambient temperature Standard: –40 °C to +40 °C (II2G c IIC T4; II2D c T130 °C)
(modulating duty with worm wheel –40 °C to +60 °C (II2G c IIC T4; II2D c T130 °C)
made of bronze) –50 °C to +60 °C (II2G c IIC T4; II2D c T130 °C)
–60 °C to +60 °C (II2G c IIC T4; II2D c T130 °C)
Options: –40 °C to +80 °C (II2G c IIC T3; II2D c T190 °C)
0 °C to +120 °C (II2G c IIC T3; II2D c T190 °C)
–20 °C to +40 °C (IM2 c)

Further information
EU Directives ATEX Directive: (2014/34/EU)
Machinery Directive: (2006/42/EC)

38
GS 50.3 – GS 250.3
Spare parts

9. Spare parts
9.1. Part-turn gearboxes GS 50.3 – GS 125.3

39
 GS 50.3 – GS 250.3
Spare parts

Please state device type and our order number (see name plate) when ordering spare parts. Only original AUMA spare parts should be used.
Failure to use original spare parts voids the warranty and exempts AUMA from any liability. Delivered spare parts may slightly vary from the
representation in these instructions.

Ref. no. Designation Type

512.0 Input mounting flange Sub-assembly
517.0 Housing Sub-assembly
518.0 Housing cover Sub-assembly
519.1 Worm wheel
520.0 Worm shaft Sub-assembly
521.0 Travelling nut with two pairs of safety wedge discs Sub-assembly
521.1 Travelling nut
521.12 Pair of safety wedge discs
522.0 Bearing cover Sub-assembly
523.0 End stop Sub-assembly
524.0 Pointer cover Sub-assembly
525.0 Coupling Sub-assembly
526.0 End stop nut Sub-assembly
527.0 Protection cover Sub-assembly
534.0 Drive shaft Sub-assembly
538.0 Bearing cover with drive shaft Sub-assembly
595.0 Screw kit for manual gearbox Sub-assembly
619.1 Extension flange Sub-assembly
S1 Seal kit Set

40
GS 50.3 – GS 250.3
Spare parts

9.2. Part-turn gearboxes GS 160.3 – GS 250.3

41
 GS 50.3 – GS 250.3
Spare parts

Please state device type and our order number (see name plate) when ordering spare parts. Only original AUMA spare parts should be used.
Failure to use original spare parts voids the warranty and exempts AUMA from any liability. Delivered spare parts may slightly vary from the
representation in these instructions.

Ref. no. Designation Type

512.0 Input mounting flange Sub-assembly
513.1 Grub screw
517.0 Housing Sub-assembly
518.0 Housing cover Sub-assembly
519.1 Worm wheel
520.0 Worm shaft Sub-assembly
521.0 Travelling nut with two pairs of safety wedge discs
521.1 Travelling nut
521.2 Pair of safety wedge discs Sub-assembly
522.0 Bearing cover Sub-assembly
523.0 End stop Sub-assembly
524.0 Pointer cover Sub-assembly
525.0 Coupling Sub-assembly
526.0 End stop nut Sub-assembly
527.0 Protection cover Sub-assembly
534.0 Drive shaft Sub-assembly
536.0 Protective cap Sub-assembly
537.0 Lock nut Sub-assembly
538.0 Bearing cover with drive shaft Sub-assembly
595.0 Screw kit for manual gearbox Sub-assembly
619.1 Extension flange Sub-assembly
S1 Seal kit Set

42
GS 50.3 – GS 250.3
Spare parts

9.3. Primary reduction gearings for GS 100.3 – GS 125.3 (126:1/160:1/208:1)

43
 GS 50.3 – GS 250.3
Spare parts

Please state device type and our order number (see name plate) when ordering spare parts. Only original AUMA spare parts should be used.
Failure to use original spare parts voids the warranty and exempts AUMA from any liability. Delivered spare parts may slightly vary from the
representation in these instructions.

Ref. no. Designation Type

003.0 Housing cover with drive shaft Sub-assembly
019.0 Housing Sub-assembly
020.0 Housing cover Sub-assembly
021.0 Drive shaft Sub-assembly
022.0 Planet carrier Sub-assembly
045.0 Internal geared wheel Sub-assembly
512.0 Input mounting flange Sub-assembly
595.0 Screw kit for manual gearbox Sub-assembly
S1 Seal kit Set

44
GS 50.3 – GS 250.3
Spare parts

9.4. Primary reduction gearings for GS 160.3 (218:1/442:1) GS 200.3 (214:1/434:1) GS 250.3 (210:1/411:1)

45
 GS 50.3 – GS 250.3
Spare parts

Please state device type and our order number (see name plate) when ordering spare parts. Only original AUMA spare parts should be used.
Failure to use original spare parts voids the warranty and exempts AUMA from any liability. Delivered spare parts may slightly vary from the
representation in these instructions.

Ref. no. Designation Type

001.0 Housing Sub-assembly
002.0 Housing cover Sub-assembly
003.0 Housing cover with drive shaft Sub-assembly
006.0 Planetary gearing first stage (GS 160.3) Sub-assembly
007.0 Planetary gearing first stage (GS 200.3) Sub-assembly
008.0 Planetary gearing first stage (GS 250.3) Sub-assembly
512.0 Input mounting flange Sub-assembly
534.0 Drive shaft Sub-assembly
588.1 Blanking plug
595.0 Screw kit for manual gearbox Sub-assembly
S1 Seal kit Set

46
GS 50.3 – GS 250.3
Spare parts

9.5. Primary reduction gearings for GS 200.3 (864:1) GS 250.3 (848:1)

47
 GS 50.3 – GS 250.3
Spare parts

Please state device type and our order number (see name plate) when ordering spare parts. Only original AUMA spare parts should be used.
Failure to use original spare parts voids the warranty and exempts AUMA from any liability. Delivered spare parts may slightly vary from the
representation in these instructions.

Ref. no. Designation Type

001.0 Housing Sub-assembly
002.0 Housing cover Sub-assembly
003.0 Housing cover with drive shaft Sub-assembly
006.0 Planetary gearing first stage Sub-assembly
007.0 Planetary gear second stage (GS 200.3) Sub-assembly
008.0 Planetary gear second stage (GS 250.3) Sub-assembly
010.0 Intermediate housing Sub-assembly
011.1 Pinion
512.0 Input mounting flange Sub-assembly
534.0 Drive shaft Sub-assembly
588.1 Blanking plug
595.0 Screw kit for manual gearbox Sub-assembly
S1 Seal kit Set

48
GS 50.3 – GS 250.3
Certificates

10. Certificates
Information Certificates are valid as from the indicated date of issue. Subject to changes without
notice. The latest versions are available for download at http://www.auma.com.

10.1. Declaration of Incorporation and EU Declaration of Conformity

49
 GS 50.3 – GS 250.3

50
GS 50.3 – GS 250.3

51
 GS 50.3 – GS 250.3
Index

M
Index Maintenance 4 , 30
Maintenance intervals 30
A Manual operation 34
Ambient temperature 7 , 35 , 38 , 38 Mechanical position indicator 22 , 28 , 33
Applications 4 Motor operation 33
Assembly 14 Mounting position 14 , 35
ATEX 2014/34 EU 37 Multi-turn actuators for motor 17
B operation
Base 34 N
C Name plate 7
Certificates 49 O
Chainwheel 14 Operating times 33
Commissioning 4 , 23 Operation 4 , 34
Corrosion protection 12 , 35 Order number 7, 8
Coupling 19 , 35 Output torque 7
D P
Data Matrix code 9 Packaging 13
Declaration of Incorporation 49 Parallel pins 35
Deflection 34 Pointer cover 22 , 28
Device type 7 Position indicator 28
Directives 4 Protective measures 4
Disposal 30
Duty class 7, 8 Q
Qualification of staff 4
E
Enclosure protection 7 , 35 R
End stops 23 , 32 Range of application 4
EU Declaration of Conformity 49 Recycling 30
Explosion-proof version 7 Reduction ratio 7, 8
Explosion protection 37 Replacing the seals 30
Running indication 22
F
Factor 7, 8 S
Features and functions 33 Safety instructions 4
Flange 7 Safety instructions/warnings 4
Flanges 18 Screws to actuator 17
Seating 25
H Self-locking 32
Handwheel 14 Serial number 7, 8
Housing material 32 Service 30
I Service conditions 36
Identification 7 Servicing 30
Indications 22 Size 7
Input mounting flanges 18 Spare parts 39
Input shaft 33 Spigot 35
Input speeds 33 Standards 4
Inspection certificate 8 Storage 12
Strength of end stop 32
L Support 30
Lever 34 Support App 9, 9
Lifetime 36 Swing angle 7 , 26 , 32
Load spectrum 36

52
GS 50.3 – GS 250.3
Index

T
Technical data 32
Transport 10
Type (device type) 7
Type designation 7
Type of duty 33 , 37 , 37
Type of lubricant 7, 8

V
Valve attachment 7 , 35
Valve torque 7
Version 7 , 8 , 32

W
Worm wheel material 32

Y
Year of manufacture 8
Year of production 8

53
 AUMA worldwide

Europe IBEROPLAN S.A. AUMA Polska Sp. z o.o.

ES 28027 Madrid PL 41-219 Sosnowiec
AUMA Riester GmbH & Co. KG Tel +34 91 3717130 Tel +48 32 783 52 00
iberoplan@iberoplan.com biuro@auma.com.pl
Location Muellheim www.auma.com.pl
DE 79373 Muellheim AUMA Finland Oy
Tel +49 7631 809 - 0 FI 02230 Espoo AUMA-LUSA Representative Office, Lda.
info@auma.com Tel +358 9 5840 22 PT 2730-033 Barcarena
www.auma.com auma@auma.fi Tel +351 211 307 100
www.auma.fi geral@aumalusa.pt
Location Ostfildern-Nellingen
DE 73747 Ostfildern AUMA France S.A.R.L. SAUTECH
Tel +49 711 34803 - 0 FR 95157 Taverny Cedex RO 011783 Bucuresti
riester@wof.auma.com Tel +33 1 39327272 Tel +40 372 303982
info@auma.fr office@sautech.ro
Service-Center Bayern www.auma.fr
DE 85386 Eching OOO PRIWODY AUMA
Tel +49 81 65 9017- 0 AUMA ACTUATORS Ltd. RU 141402 Khimki, Moscow region
Riester@scb.auma.com GB Clevedon, North Somerset BS21 6TH Tel +7 495 221 64 28
Tel +44 1275 871141 aumarussia@auma.ru
Service-Center Köln mail@auma.co.uk www.auma.ru
DE 50858 Köln www.auma.co.uk
Tel +49 2234 2037 - 900 OOO PRIWODY AUMA
Service@sck.auma.com D. G. Bellos & Co. O.E. RU 125362 Moscow
GR 13673 Acharnai, Athens Tel +7 495 787 78 21
Service Center Magdeburg Tel +30 210 2409485 aumarussia@auma.ru
DE 39167 Niederndodeleben info@dgbellos.gr www.auma.ru
Tel +49 39204 759 - 0
Service@scm.auma.com APIS CENTAR d. o. o. ERICHS ARMATUR AB
HR 10437 Bestovje SE 20039 Malmö
AUMA-Armaturenantriebe Ges.m.b.H. Tel +385 1 6531 485 Tel +46 40 311550
AT 2512 Tribuswinkel auma@apis-centar.com info@erichsarmatur.se
Tel +43 2252 82540 www.apis-centar.com www.erichsarmatur.se
office@auma.at
www.auma.at Fabo Kereskedelmi és Szolgáltató Kft. ELSO-b, s.r.o.
HU 8800 Nagykanizsa SK 94901 Nitra
AUMA BENELUX B.V. B. A. Tel +36 93/324-666 Tel +421 905/336-926
BE 8800 Roeselare auma@fabo.hu elsob@stonline.sk
Tel +32 51 24 24 80 www.fabo.hu www.elsob.sk
office@auma.be
www.auma.nl Falkinn HF Auma Endüstri Kontrol Sistemleri Limited
IS 108 Reykjavik Sirketi
ProStream Group Ltd. Tel +00354 540 7000 TR 06810 Ankara
BG 1632 Sofia os@falkinn.is Tel +90 312 217 32 88
Tel +359 2 9179-337 www.falkinn.is info@auma.com.tr
valtchev@prostream.bg
www.prostream.bg AUMA ITALIANA S.r.l. a socio unico AUMA Technology Automations Ltd
IT 20023 Cerro Maggiore (MI) UA 02099 Kiev
OOO “Dunkan-Privod” Tel +39 0331 51351 Tel +38 044 586-53-03
BY 220004 Minsk info@auma.it auma-tech@aumatech.com.ua
Tel +375 29 6945574 www.auma.it
belarus@auma.ru Africa
www.zatvor.by AUMA BENELUX B.V.
LU Leiden (NL) Solution Technique Contrôle Commande
AUMA (Schweiz) AG Tel +31 71 581 40 40 DZ Bir Mourad Rais, Algiers
CH 8965 Berikon office@auma.nl Tel +213 21 56 42 09/18
Tel +41 566 400945 stcco@wissal.dz
RettichP.ch@auma.com NB Engineering Services
MT ZBR 08 Zabbar A.T.E.C.
AUMA Servopohony spol. s.r.o. Tel + 356 2169 2647 EG Cairo
CZ 250 01 Brandýs n.L.-St.Boleslav nikibel@onvol.net Tel +20 2 23599680 - 23590861
Tel +420 326 396 993 contactus@atec-eg.com
auma-s@auma.cz AUMA BENELUX B.V.
www.auma.cz NL 2314 XT Leiden SAMIREG
Tel +31 71 581 40 40 MA 203000 Casablanca
GRØNBECH & SØNNER A/S office@auma.nl Tel +212 5 22 40 09 65
DK 2450 København SV www.auma.nl samireg@menara.ma
Tel +45 33 26 63 00
GS@g-s.dk SIGUM A. S. MANZ INCORPORATED LTD.
www.g-s.dk NO 1338 Sandvika NG Port Harcourt
Tel +47 67572600 Tel +234-84-462741
post@sifag.no mail@manzincorporated.com
www.manzincorporated.com

54
 AUMA worldwide

AUMA South Africa (Pty) Ltd. Mikuni (B) Sdn. Bhd. Mustafa Sultan Science & Industry Co LLC
ZA 1560 Springs BN KA1189 Kuala Belait OM Ruwi
Tel +27 11 3632880 Tel + 673 3331269 / 3331272 Tel +968 24 636036
aumasa@mweb.co.za mikuni@brunet.bn r-negi@mustafasultan.com

America AUMA Actuators (China) Co., Ltd. FLOWTORK TECHNOLOGIES

CN 215499 Taicang CORPORATION
AUMA Argentina Rep.Office Tel +86 512 3302 6900 PH 1550 Mandaluyong City
AR Buenos Aires mailbox@auma-china.com Tel +63 2 532 4058
Tel +54 11 4737 9026 www.auma-china.com flowtork@pldtdsl.net
contacto@aumaargentina.com.ar
PERFECT CONTROLS Ltd. M & C Group of Companies
AUMA Automação do Brazil ltda. HK Tsuen Wan, Kowloon PK 54000 Cavalry Ground, Lahore Cantt
BR Sao Paulo Tel +852 2493 7726 Tel +92 42 3665 0542, +92 42 3668 0118
Tel +55 11 4612-3477 joeip@perfectcontrols.com.hk sales@mcss.com.pk
contato@auma-br.com www.mcss.com.pk
PT. Carakamas Inti Alam
TROY-ONTOR Inc. ID 11460 Jakarta Petrogulf W.L.L
CA L4N 8X1 Barrie, Ontario Tel +62 215607952-55 QA Doha
Tel +1 705 721-8246 auma-jkt@indo.net.id Tel +974 44350151
troy-ontor@troy-ontor.ca pgulf@qatar.net.qa
AUMA INDIA PRIVATE LIMITED.
AUMA Chile Representative Office IN 560 058 Bangalore AUMA Saudi Arabia Support Office
CL 7870163 Santiago Tel +91 80 2839 4656 SA 31952 Al Khobar
Tel +56 2 2821 4108 info@auma.co.in Tel + 966 5 5359 6025
claudio.bizama@auma.com www.auma.co.in Vinod.Fernandes@auma.com

B & C Biosciences Ltda. ITG - Iranians Torque Generator AUMA ACTUATORS (Singapore) Pte Ltd.
CO Bogotá D.C. IR 13998-34411 Teheran SG 569551 Singapore
Tel +57 1 349 0475 +982144545654 Tel +65 6 4818750
proyectos@bycenlinea.com info@itg-co.ir sales@auma.com.sg
www.bycenlinea.com www.auma.com.sg
Trans-Jordan Electro Mechanical Supplies
AUMA Región Andina & Centroamérica JO 11133 Amman NETWORK ENGINEERING
EC Quito Tel +962 - 6 - 5332020 SY Homs
Tel +593 2 245 4614 Info@transjordan.net +963 31 231 571
auma@auma-ac.com eyad3@scs-net.org
www.auma.com AUMA JAPAN Co., Ltd.
JP 211-0016 Kawasaki-shi, Kanagawa Sunny Valves and Intertrade Corp. Ltd.
Corsusa International S.A.C. Tel +81-(0)44-863-8371 TH 10120 Yannawa, Bangkok
PE Miraflores - Lima mailbox@auma.co.jp Tel +66 2 2400656
Tel +511444-1200 / 0044 / 2321 www.auma.co.jp mainbox@sunnyvalves.co.th
corsusa@corsusa.com www.sunnyvalves.co.th
www.corsusa.com DW Controls Co., Ltd.
KR 153-702 Gasan-dong, GeumChun-Gu,, Top Advance Enterprises Ltd.
Control Technologies Limited Seoul TW Jhonghe City, Taipei Hsien (235)
TT Marabella, Trinidad, W.I. Tel +82 2 2624 3400 Tel +886 2 2225 1718
Tel + 1 868 658 1744/5011 import@actuatorbank.com support@auma-taiwan.com.tw
www.ctltech.com www.actuatorbank.com www.auma-taiwan.com.tw

AUMA ACTUATORS INC. Al-Arfaj Engineering Co WLL AUMA Vietnam Hanoi RO

US PA 15317 Canonsburg KW 22004 Salmiyah VN Hanoi
Tel +1 724-743-AUMA (2862) Tel +965-24817448 +84 4 37822115
mailbox@auma-usa.com info@arfajengg.com chiennguyen@auma.com.vn
www.auma-usa.com www.arfajengg.com
Australia
Suplibarca TOO “Armaturny Center”
VE Maracaibo, Estado, Zulia KZ 060005 Atyrau BARRON GJM Pty. Ltd.
Tel +58 261 7 555 667 Tel +7 7122 454 602 AU NSW 1570 Artarmon
suplibarca@intercable.net.ve armacentre@bk.ru Tel +61 2 8437 4300
info@barron.com.au
Asia Network Engineering www.barron.com.au
LB 4501 7401 JBEIL, Beirut
AUMA Actuators UAE Support Office Tel +961 9 944080
AE 287 Abu Dhabi nabil.ibrahim@networkenglb.com
Tel +971 26338688 www.networkenglb.com
Nagaraj.Shetty@auma.com
AUMA Malaysia Office
AUMA Actuators Middle East MY 70300 Seremban, Negeri Sembilan
BH 152 68 Salmabad Tel +606 633 1988
Tel +97 3 17896585 sales@auma.com.my
salesme@auma.com

55
AUMA Riester GmbH & Co. KG
P.O. Box 1362
DE 79373 Muellheim
Tel +49 7631 809 - 0
Fax +49 7631 809 - 1250
info@auma.com
www.auma.com

Y003.822/003/en/2.17

For detailed information on AUMA products, refer to the Internet: www.auma.com