AUMA SAEx 07.2 User manual

Multi-turn actuators
SAEx 07.2 –SAEx 16.2
SAREx 07.2 –SAREx 16.2
AUMA NORM (without controls)
Assembly, operation, commissioningOperation instructions

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
51. Safety instructions................................................................................................................. 51.1. Basic information on safety 51.2. Range of application 61.3. Warnings and notes 71.4. References and symbols
82. Identification........................................................................................................................... 82.1. Name plate 112.2. Short description
123. Transport, storage and packaging........................................................................................ 123.1. Transport 143.2. Storage 143.3. Packaging
154. Assembly................................................................................................................................ 154.1. Mounting position 154.2. Handwheel fitting 154.3. Multi-turn actuator: mount to valve/gearbox 154.3.1. Output drive type A 164.3.1.1. Stem nut: finish machining 174.3.1.2. Multi-turn actuator (with output drive type A):mount to valve 184.3.2. Output drive types B 194.3.2.1. Multi-turn actuator with output drive types B:mount to valve/gearbox 204.4. Accessories for assembly 204.4.1. Stem protection tube for rising valve stem
215. Electrical connection............................................................................................................. 215.1. Basic information 225.2. KP/KPH electrical connection 235.2.1. Terminal compartment: open 245.2.2. Cable connection 255.2.3. Terminal compartment: close 265.3. KES electrical connection 275.3.1. Terminal compartment: open 285.3.2. Cable connection 295.3.3. Terminal compartment: close 305.4. KT/KM electrical connection 315.4.1. Terminal compartment: open 325.4.2. Cable connection
2
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Table of contents

345.4.3. Terminal compartment: close 355.5. External earth connection 355.6. Accessories for electrical connection 355.6.1. Parking frame
366. Operation................................................................................................................................ 366.1. Manual operation 366.1.1. Engage manual operation 366.1.2. Manual operation: disengage 376.2. Motor operation
387. Indications (optional)............................................................................................................. 387.1. Mechanical position indication/running indication via indicator mark on cover
398. Signals (output signals)......................................................................................................... 398.1. Feedback signals from actuator
409. Commissioning (basic settings)........................................................................................... 409.1. Switch compartment: open 409.2. Torque switching: set 419.3. Limit switching: set 419.3.1. End position CLOSED (black section): set 429.3.2. End position OPEN (white section): set 429.4. Test run 429.4.1. Direction of rotation: check 439.4.2. Limit switching: check 449.5. Switch compartment: close
4510. Commissioning (optional equipment settings)................................................................... 4510.1. Potentiometer 4510.1.1. Potentiometer: set 4510.2. RWG electronic position transmitter 4610.2.1. Measuring range: set 4610.3. EWG 01.1 electronic position transmitter 4710.3.1. Measuring range: set 4810.3.2. Current values : adjust 4910.3.3. LED end position signalling: switch on/off 4910.4. Intermediate positions: set 5010.4.1. Running direction CLOSE (black section): set 5010.4.2. Running direction OPEN (white section): set 5010.5. Mechanical position indicator: set
5211. Corrective action.................................................................................................................... 5211.1. Faults during operation/commissioning 5211.2. Motor protection (thermal monitoring)
5412. Servicing and maintenance................................................................................................... 5412.1. Preventive measures for servicing and safe operation 5412.2. Disconnection from the mains 5512.2.1. Disconnection from the mains with KP/KPH and KES electrical connection 5612.2.2. Disconnection from the mains with KT/KM electrical connection 5712.3. Maintenance 5712.4. Disposal and recycling
3
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Table of contents

5913. Technical data......................................................................................................................... 5913.1. Technical data Multi-turn actuators
6314. Spare parts............................................................................................................................. 6314.1. Multi-turn actuators SAEx 07.2 –SAEx 16.2/SAREx 07.2 –SAREx 16.2 KP/KPH 6514.2. Multi-turn actuators SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 KES 6714.3. Multi-turn actuators SAEx 07.2 –SAEx 16.2/SAREx 07.2 –SAREx 16.2 KT/KM
6915. Certificates.............................................................................................................................. 6915.1. Declaration of Incorporation and EU Declaration of Conformity
72Index........................................................................................................................................
74Addresses...............................................................................................................................
4
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Table of contents

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.
They include among others standards and directives such as IEC 60079 “Explosive
atmospheres" –
●Part 14: Electrical installations design, selection and erection.
●Part 17: Electrical installations inspection and maintenance.
Safetyinstructions/warn-
ings All personnel working with this device must be familiar with the safety and warning
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 by suitably qualified personnel 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 national regulations.
●During operation,the housingwarmsup andsurfacetemperatures> 60°C 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 written consent of the manufacturer.
1.2. Range of application
AUMA multi-turn actuators are designed for the operation of industrial valves, e.g.
globe valves, gate valves, butterfly valves, and ball valves.
5
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Safety instructions

The devices described below are approved for use in the potentially explosive
atmospheres of zones 1, 2, 21, and 22.
If temperatures >40 °C are to be expected at the valve mounting flange or the valve
stem (e.g.due to hot media), please consult AUMA.Temperatures > 40 °C are not
considered with regards to the non-electrical explosion protection.
Other applications require explicit (written) confirmation by the manufacturer.
The following applications are not permitted, e.g.:
●Industrial trucks according to EN ISO 3691
●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
●Buried service
●Continuous submersion (observe enclosure protection)
●Potentially explosive areas of zones 0 and 20
●Potentially explosive areas of group I (mining)
●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.
Information These operation instructions are only valid for the "clockwise closing" standard
version, i.e.driven shaft turns clockwise to close the valve.
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 could result in minor or moderate injury. May also be
used with property damage.
Potentially hazardous situation. Failure to observe this warning could 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)
6
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Safety instructions

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.
< > 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.
7
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Safety instructions

2. Identification
2.1. Name plate
Figure 1: Arrangement of name plates
[1] Motor name plate
[2] Actuator name plate
[3] Additional plate, e.g. KKS plate (Power Plant Classification System)
[4] Explosion protection approval plate
Actuator name plate
Figure 2: Actuator name plate (example)
(= manufacturer logo); (= CE mark)
[1] Name of manufacturer
[2] Address of manufacturer
[3] Type designation
[4] Order number
[5] Serial number
[6] Output speed
[7] Torque range in direction CLOSE
[8] Torque range in direction OPEN
[9] Type of lubricant
[10] Permissible ambient temperature
[11] Can be assigned as an option upon customer request
[12] Enclosure protection
[13] Data Matrix code
8
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Identification

Motor name plate
Figure 3: Motor name plate (example)
(= manufacturer logo); (= CE mark)
[1] Motor type
[2] Motor article number
[3] Serial number
[4] Current type, mains voltage
[5] Rated power
[6] Rated current
[7] Type of duty
[8] Enclosure protection
[9] Motor protection (temperature protection)
[10] Insulation class
[11] Output speed
[12] Power factor cos phi
[13] Mains frequency
[14] Data Matrix code
Approval plate in explosion-proof version
Figure 4: Approval plates in explosion-proof version (examples)
[1] Ex symbol, CE mark, number of test authority
[2] Ex certificate (number)
Classification:
[3] Electrical gas explosion protection
[4] Electrical dust explosion protection
[5] Non-electrical explosion protection
[6] Threads for line bushings at electrical connection
[7] Not used
9
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Identification

Descriptions referring to name plate indications
Type designation Figure 5:Type designation (example)
1. Type and size of actuator
2. Flange size
3. Ex marking
Type and size
These instructions apply to the following devices types and sizes:
●Type SAEx: Multi-turn actuators for open-close duty
Sizes: 07.2, 07.6, 10.2, 14.2, 14.6, 16.2
●Type SAREx = Multi-turn actuators for modulating duty
Sizes: 07.2, 07.6, 10.2, 14.2, 14.6, 16.2
Ex marking
Table 1:
Marking for explosion protection (example of /-a3b-)
–b3a–
Not used–
Motor type
a = ADX or VDX: 3-phase AC motor
b = AEX, ACX,VEX, VCX: 1-phase AC motor
a
Protection type of electrical connection
3 = Terminal compartment Ex eincreased safety
4 = Terminal compartment Ex dflameproof enclosure
3
Protection type of position transmitter
a = Without intrinsically safe electric circuit
b = Electric circuit Ex iIntrinsic safety (RWG 5020.2Ex)
b
Not used (type of protection for fieldbus)–
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 > Service & Support >myAUMA, we offer
a service allowing authorised users to download order-related documents such as
wiring diagramsand technical data(both in Germanand English), inspectioncertificate
and the operation instructions when entering the order number.
Actuator serial number Table 2:
Description of serial number (with example 0516MD12345)
MD123451605
Positions 1+2: Assembly in week = week 0505
Positions 3+4:Year of manufacture = 201616
Internal number for unambiguous product identificationMD12345
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.
10
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Identification

Figure 6: Link to the App store:
2.2. Short description
Multi-turn actuator Definition in compliance with EN 15714-2/EN ISO 5210:
A multi-turn actuator is an actuator which transmits torque to a valve for at least one
full revolution.It is capable of withstanding thrust.
AUMA multi-turn actuators SAEx 07.2 –SAEx 16.2/SAREx 07.2 –SAREx 16.2 are
driven by an electric motor and are capable of withstanding thrust in combination
with output drive type A.For manual operation, a handwheel is provided.Switching
off in end positions may be either by limit or torque seating.Actuator controls are
required to operate or process the actuator signals.
Actuators without controls can be equipped with AUMA actuator controls at a later
date.For more information, please state our order number (refer to actuator name
plate).
11
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Identification

3. Transport, storage and packaging
3.1. Transport
For transport to place of installation, use sturdy packaging.
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.
→Actuators mounted on valves: Attach ropes or hooks for the purpose of lifting
by hoist to valve and NOT to actuator.
→Actuatorsmounted togearboxes:Attach ropesor hooksforthe purposeof lifting
by hoist only to the gearbox using eyebolts and NOT to the actuator.
→Respect total weight of combination (actuator, gearbox, valve)
→Secure load against falling down, sliding or tilting.
→Perform lift trial at low height to eliminate any potential danger e.g.by tilting.
Figure 7: Example: Lifting the actuator
Table 3:
Weights of multi-turn actuators SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
with 3-phase AC motors
Weight2) Motor type1) Type designation
Actuator approx. [kg]
22VDX...SAEx 07.2/
SAREx 07.2 23ADX...
22VDX...SAEx 07.6/
SAREx 07.6 24ADX...
26VDX...SAEx 10.2/
SAREx 10.2 28ADX...
48VDX...SAEx 14.2/
SAREx 14.2 50ADX...
56VDX...SAEx 14.6/
SAREx 14.6 72ADX...
83VDX...SAEx 16.2/
SAREx 16.2 88ADX...
Refer to motor name plate1)
12
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Transport, storage and packaging

Indicated weight includes AUMA NORM multi-turn actuator with 3-phase AC motor, electrical con-
nection in standard version, output drive type B1 and handwheel.For other output drive types, heed
additional weights.
2)
Table 4:
Weights of multi-turn actuators SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
With 1-phase AC motors
Weight2) Motor type1) Type designation
Actuator approx. [kg]
28VEX...SAEx 07.2/
SAREx 07.2 31AEX...
28VEX...SAEx 07.6/
SAREx 07.6 31AEX...
40ACX...
32VEX...48-4...SAEx 10.2/
SAREx 10.2 35VEX...48-2...
44ACX... 56-4...
47ACX... 56-2...
63VEX...SAEx 14.2/
SAREx 14.2 65VCX...
67ACX...
67VEX...SAEx 14.6/
SAREx 14.6 70VCX...
Refer to motor name plate1) Indicated weight includes AUMA NORM multi-turn actuator with 1-phase AC motor, electrical con-
nection in standard version, output drive type B1 and handwheel.For other output drive types, heed
additional weights.
2)
Table 5:
Weights for output drive type A 07.2 –A 16.2
[kg]Flange sizeType designation
1.1F07A 07.2
1.3F10
2.8F10A 10.2
6.8F14A 14.2
11.7F16A 16.2
Table 6:
Weights for output drive type AF 07.2 –AF 16.2
[kg]Flange sizeType designation
5.2F10AF 07.2
5.2F10AF 07.6
5.5F10AF 10.2
13.7F14AF 14.2
23F16AF 16.2
13
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Transport, storage and packaging

3.2. Storage
Danger of corrosion due to inappropriate storage!
→Store in a well-ventilated, dry room.
→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:
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.
14
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Transport, storage and packaging

4. Assembly
4.1. Mounting position
The product described in this document can be operated in any mounting position.
Restriction:When using oil instead of grease within the actuator gear housing, the
hollow shaft mounting position must be perpendicular, with the flange pointing
downward.The type of lubricant used is indicated on the actuator name plate (short
designation F...= grease; O...= oil).
4.2. Handwheel fitting
Information For transportreason, handwheels witha diameterof 400 mmand largerare supplied
separately within the scope of delivery.
Figure 8: Handwheel
[1] Spacer
[2] Input shaft
[3] Handwheel
[4] Retaining ring
1. If required, fit spacer [1] on input shaft [2].
2. Slip handwheel [3] onto input shaft.
3. Secure handwheel [3] using the retaining ring [4] supplied.
Information The retaining ring [4] (together with these operation instructions) is stored in a
weatherproof bag, which is attached to the device prior to delivery.
4.3. Multi-turn actuator: mount to valve/gearbox
Danger of corrosion due to damage to paint finish and condensation!
→Touch up damage to paint finish after work on the device.
→After mounting, connect the device immediately to electrical mains to ensure
that heater minimises condensation.
4.3.1. Output drive type A
Application ●Output drive for rising, non-rotating valve stem
●Capable of withstanding thrust
15
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Assembly

Design Output mounting flange [1] with axial bearing stem nut [2] form one unit.Torque is
transmitted to valve stem [3] via stem nut [2].
Figure 9: Design of output drive type A
[1] Output mounting flange
[2] Stem nut with dog coupling
[3] Valve stem
Information To adapt the actuators to available output drive types A with flanges F10 and F14
(year of manufacture: 2009 and earlier), an adapter is required.The adapter can be
ordered from AUMA.
4.3.1.1. Stem nut: finish machining
✔This working step is only required if stem nut is supplied unbored or with pilot
bore.
Figure 10: Output drive type A
[1] Stem nut
[2] Axial needle roller bearing
[2.1] Axial bearing washer
[2.2] Axial needle roller and cage assembly
[3] Spigot ring
1. Remove spigot ring [3] from output drive.
2. Remove stem nut [1] together with axial needle roller bearings [2].
16
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Assembly

3. Remove axial bearing washers [2.1] and axial needle roller and cage assemblies
[2.2] from stem nut [1].
4. Drill and bore stem nut [1] and cut thread.
Information: When fixing in the chuck, make sure stem nut runs true!
5. Clean the machined stem nut [1].
6. Apply sufficient Lithium soap EP multi-purpose grease to axial needle roller and
cage assemblies [2.2] and axial bearing washers [2.1], ensuring that all hollow
spaces are filled with grease.
7. Place greased axial needle roller and cage assemblies [2.2] and axial bearing
washers [2.1] onto stem nut [1].
8. Re-insert stem nut [1] with bearings [2] into output drive.
Information: Ensure that dogs or splines are placed correctly in the keyway of
the hollow shaft.
9. Screw in spigot ring [3] until it is firm against the shoulder.
4.3.1.2. Multi-turn actuator (with output drive type A): mount to valve
Figure 11: Assembly of output drive type A
[1] Valve stem
[2] Output drive type A
[3] Screws to actuator
[4] Valve flange
[5] Screws to output drive
1. If the output drive type A is already mounted to the multi-turn actuator:Loosen
screws [3] and remove output drive type A [2].
2. Check if the flange of output drive type A matches the valve flange [4].
3. Apply a small quantity of grease to the valve stem [1].
4. Place output drive type A on valve stem and turn until it is flush on the valve
flange.
5. Turn output drive type A until alignment of the fixing holes.
6. Screw in fastening screws [5], however do not completely tighten.
7. Fit multi-turn actuator on the valve stem so that the stem nut dogs engage into
the output drive sleeve.
➥The flanges are flush with each other if properly engaged.
8. Adjust multi-turn actuator until alignment of the fixing holes.
9. Fasten multi-turn actuator with screws [3].
17
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Assembly

10. Fasten screws [3] crosswise with a torque according to table.
Table 7:
Tightening torques for screws
Tightening torque [Nm]Threads
Strength class A2-80/A4–80
10M6
24M8
48M10
82M12
200M16
392M20
11. Turn multi-turn actuator with handwheel in direction OPEN until valve flange
and output drive A are firmly placed together.
12. Tighten fastening screws [5] between valve and output drive type A crosswise
applying a torque according to table.
4.3.2. Output drive types B
Application ●For rotating, non-rising valve stem
●Not capable of withstanding thrust
Design Connection between hollow shaft and valve or gearbox via output drive sleeve fixed
to the hollow shaft of the multi-turn actuator via retaining ring.
When exchanging the output drive sleeve, later retrofitting to a different output drive
type is possible
●Output drive type B: Output drive sleeve with bore according to DIN 3210
●Output drive types B1 –B4:Output drive sleeve with bore according to EN ISO
5210
Figure 12: Output drive type B
[1] Flange multi-turn actuator (e.g. F07)
[2] Hollow shaft
[3] Output drive sleeve (illustration examples)
[3] B/B1/B2 and [3]* B3/B4, respectively with bore and keyway)
[4] Gearbox/valve shaft with parallel key
18
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Assembly

Information Spigot at valve flanges should be loose fit.
4.3.2.1. Multi-turn actuator with output drive types B: mount to valve/gearbox
Figure 13: Mounting output drive types B
[1] Multi-turn actuator
[2] Valve/gearbox
[3] Valve/gearbox shaft
1. Check if mounting flanges fit together.
2. Check if output drive of multi-turn actuator [1] matches the output drive of
valve/gearbox or valve/gearbox valve shaft [2/3].
3. Apply a small quantity of grease to the valve or gearbox shaft [3].
4. Fit multi-turn actuator [1].
Information: Ensure that the spigot fits uniformly in the recess and that the
mounting faces are in complete contact.
5. Fasten multi-turn actuator with screws according to table.
Information: We recommend applying liquid thread sealing material to the
screws to avoid contact corrosion.
6. Fasten screws crosswise to a torque according to table.
Table 8:
Tightening torques for screws
Tightening torque [Nm]Threads
Strength class A2-80/A4–80
10M6
24M8
48M10
82M12
200M16
392M20
19
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2 Assembly

4.4. Accessories for assembly
4.4.1. Stem protection tube for rising valve stem
Figure 14: Assembly of the stem protection tube
[1] Protective cap for stem protection tube (fitted)
[1]* Option: Protective cap made of steel (screwed)
[2] Stem protection tube
[3] V-seal
1. Seal all threads with hemp,Teflon tape, or thread sealing material.
2. Screw stem protection tube [2] into thread and tighten it firmly.
Information: For stem protection tubes made of two or more segments, all
parts have to be thoroughly screwed together.
Figure 15: Protection tube made of segments with threaded sleeves (>900 mm)
[2] Segment of stem protection tube
[3] V-seal
[4] Threaded sleeve
3. Push down the sealing ring [3] onto the housing.
Information: For mounting segments, push down seals of segments down to
the sleeve (connecting piece).
4. Check whether protective cap [1] for stem protection tube is available, in perfect
condition and tightly placed on or screwed to the tube.
Risk of bending or oscillation of protection tubes exceeding a length of 2 m!
Risk of damage at stem and/or protection tube.
→Secure protection tubes exceeding 2 m by an appropriate support.
20
SAEx 07.2 –SAEx 16.2 / SAREx 07.2 –SAREx 16.2
Assembly