EB 8312-1 EN
Translation of original instructions

Type 3273 Side-mounted Handwheel
60 and 120 mm rated travel

Edition March 2021

Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices. The images shown inthese instructions are for illustration purposes only. The actual product may vary.
Î For the safe and proper use of these instructions, read them carefully and keep them forlater reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service(aftersalesservice@samsongroup.com).

Documents relating to the device, such as the mounting and operating
instructions, are available on our website at www.samsongroup.com >Service & Support > Downloads > Documentation.

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

EB 8312-1 EN

Contents

1
1.1
1.2
1.3

Safety instructions and measures....................................................................5
Notes on possible severe personal injury..........................................................8
Notes on possible personal injury....................................................................8
Notes on possible property damage.................................................................9

2
2.1
2.2
2.3

Markings on the device................................................................................10
Nameplate of the side-mounted handwheel....................................................10
Valve nameplate...........................................................................................10
Actuator nameplate.......................................................................................10

3
3.1
3.2

Design and principle of operation.................................................................11
Versions.......................................................................................................11
Technical data..............................................................................................13

4
4.1
4.2
4.3
4.3.1
4.3.2
4.4

Shipment and on-site transport.....................................................................20
Accepting the delivered goods.......................................................................20
Removing the packaging from the handwheel.................................................20
Transporting and lifting the handwheel...........................................................20
Transporting the handwheel...........................................................................21
Lifting the handwheel....................................................................................21
Storing the handwheel...................................................................................21

5
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.3
5.3.1
5.3.2
5.3.3
5.3.4

Installation...................................................................................................23
Preparation for installation.............................................................................23
Type 3273 Side-mounted Handwheel for rated travels up to 60 mm..................24
Mounting the handwheel without anti-rotation fixture on the valve....................24
Mounting the handwheel with clamp-type anti-rotation fixture on the valve........30
Mounting the actuator on the handwheel........................................................36
Mounting the handwheel...............................................................................37
Type 3273 Side-mounted Handwheel for rated travels up to 120 mm................39
Mounting the handwheel without anti-rotation fixture on the valve....................39
Mounting the handwheel with fork-shaped anti-rotation fixture on the valve.......40
Mounting the actuator on the handwheel........................................................40
Mounting the handwheel...............................................................................41

6
6.1

Start-up.......................................................................................................42
Quick check.................................................................................................42

7
7.1
7.2

Operation....................................................................................................43
Working in automatic operation.....................................................................43
Manual operation.........................................................................................45

EB 8312-1 EN

Contents

8

Malfunctions................................................................................................4799.1

Servicing.....................................................................................................48
Ordering spare parts and operating supplies..................................................48

10

Decommissioning.........................................................................................49

11
11.1
11.2

Removal......................................................................................................50
Removing the handwheel from the actuator and valve......................................50
Final steps....................................................................................................52

12
12.1

Repairs........................................................................................................53
Returning devices to SAMSON......................................................................53

13

Disposal.......................................................................................................54

14
14.1
14.2
14.2.114.2.2Annex.........................................................................................................55
After-sales service.........................................................................................55
Spare parts..................................................................................................56
Side-mounted handwheel for rated travels up to 60 mm...................................56
Side-mounted handwheel for rated travels up to 120 mm.................................58

EB 8312-1 EN

Safety instructions and measures

1 Safety instructions and measures
Intended use
The SAMSON Type 3273 Hand-operated Handwheel is mounted on a valve and is intended
for the following activities in combination with a pneumatic actuator (e.g. SAMSONType 3271 Actuator):− To manually move the valve to the closed or open position for maintenance or repair
work (e.g. while exchanging the actuator)− To manually move the valve upon air supply failure− To hold the valve in the fail-safe position while performing maintenance and repair workon the pneumatic actuator− Special version: to operate a mounted valve without pneumatic actuator
The side-mounted handwheel in combination with a pneumatic actuator is not suitable toperform control tasks. The side-mounted handwheel is designed to operate under exactly defined conditions (e.g. thrust, travel, actuator area). Therefore, operators must ensure that theside-mounted handwheel is only used in operating conditions that meet the specifications
used for sizing at the ordering stage. In case operators intend to use the handwheel in otherapplications or conditions than specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the device for its intended purpose or for damage caused by external forces or any other external
factors.
Î Refer to the technical data and nameplate for limits and fields of application as well as
possible uses.
Reasonably foreseeable misuse
The handwheel is not suitable for the following applications:− Limiting the valve travel− Controlling the flow rate (except for the special version without pneumatic actuator)− Use outside the limits defined during sizing and by the technical data
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts− Performing service and repair work not described

EB 8312-1 EN

5

Safety instructions and measures

Qualifications of operating personnel
The handwheel must be mounted, started up, serviced and repaired by fully trained andqualified personnel only; the accepted industry codes and practices must be observed. According to these mounting and operating instructions, trained personnel refers to individuals
who are able to judge the work they are assigned to and recognize possible hazards due totheir specialized training, their knowledge and experience as well as their knowledge of theapplicable standards.
Personal protective equipment
We recommend wearing the following protective equipment:− Safety gloves due to the moving parts (actuator stem, threaded rod, plug stem, handwheel)Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Furthermore, the product may no longer meet the requirements for its intended use.
Safety devices
The side-mounted handwheel is locked by a locking bolt, which locks the gear, to prevent accidental adjustment of the valve travel (see Fig. 18 and section 7.1).
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the handwheel by the signal pressure or moving
parts by taking appropriate precautions. Plant operators and operating personnel must observe all hazard statements, warning and caution notes in these mounting and operating instructions.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Operators are obliged to provide these mounting and operating instructions as well as the referenced documents to the operating personnel and to instruct them in proper operation. Furthermore, operators must ensure that operating personnel or third parties are not exposed toany danger.

6

EB 8312-1 EN

Safety instructions and measures

Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions aswell as the referenced documents and observe the specified hazard statements, warnings
and caution notes. Furthermore, operating personnel must be familiar with the applicablehealth, safety and accident prevention regulations and comply with them.
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:− Mounting and operating instructions for the mounted actuator, e.g. for SAMSONType 3271 Actuator:u EB 8310-2 (1000 cm²), u EB 8310-3 (1400-60 cm²) and u EB 8310-7 (1400-120
to 2 x 2800 cm²)
− Mounting and operating instructions for the valve on which it is mounted− u AB 0100 for tools, lubricant and tightening torques− When a substance is used in the device, which is listed as being a substance of very highconcern on the candidate list of the REACH regulation:
Information on safe use of the part affected
u www.samsongroup.com > About SAMSON > Material Compliance > REACH
If a device contains a substance which is listed as being a substance of very high concern
on the candidate list of the REACH regulation, this circumstance is indicated on the
SAMSON delivery note.

EB 8312-1 EN7

Safety instructions and measures

1.1 Notes on possible severe personal injury! DANGER
The handwheel poses no hazard with possible severe personal injury.
Î Observe hazard statements in the associated valve and actuator documentation.

1.2 Notes on possible personal injury! WARNING
Crush hazard arising from moving parts.
The handwheel contains moving parts (actuator stem, threaded rod, plug stem, handwheel), which can injure hands or fingers if inserted into it.
Î Do not insert hands or finger into the yoke while the valve is in operation.
Î While working on the handwheel, disconnect and lock the pneumatic air supply aswell as the control signal.
Î Use the locking bolt to lock the handwheel.
Risk of personal injury due to incorrect removal of the anti-rotation fixture withclamps under tension.
Once the actuator has been mounted on the valve and the assembly is ready for use,the clamps of the anti-rotation fixture on the plug stem are under tension.
Î Follow the instructions in this document during mounting or removal.
Î First remove the actuator from the valve or ensure it cannot transmit any forces tothe actuator stem before removing the anti-rotation fixture on the plug stem.
Exposure to hazardous substances poses a serious risk to health.
Certain lubricants and cleaning agents are classified as hazardous substances. These
substances have a special label and a material safety data sheet (MSDS) issued by the
manufacturer.
Î Make sure that an MSDS is available for any hazardous substance used. If necessary, contact the manufacturer to obtain an MSDS.
Î Inform yourself about the hazardous substances and their correct handling.

8

EB 8312-1 EN

Safety instructions and measures

1.3 Notes on possible property damage! NOTICE
Risk of handwheel damage due to the use of unsuitable tools.
Î Do not use any additional tools, such as a lever or wrench, to turn the handwheel.
Risk of handwheel damage due to the use of excessive force.
Î Do not turn the handwheel any further when it has reached its end position by exerting force.
Risk of damage to control valve components due to excessively high or low tightening torques.
Observe the specified torques when tightening control valve components. Excessive
tightening torques lead to parts wearing out more quickly. Parts that are not tightened
far enough may loosen.
Î Observe the specified tightening torques (u AB 0100).

EB 8312-1 EN

9Markings on the device

2 Markings on the device

60 mm travel

2.1 Nameplate of the sidemounted handwheel
It includes all details required to identify the
handwheel:

SAMSON 3273
Var-ID
Serial no.

2
3

Configuration ID

2

Serial number

3

Year of manufacture

4

Operating travel (mm)5Operating travel (inch)

6

Maximum thrust (kN)

Nameplate

4
5

1

1

Fig. 1:

Made in Germany

6

120 mm travel

Nameplate

The nameplate is affixed to the top bonnet
on handwheels with 60 mm travel. The
nameplate is affixed to the cover in versions
with 120 mm travel (see Fig. 2).
Nameplate

2.2 Valve nameplate
See associated valve documentation.

2.3 Actuator nameplate
See associated actuator documentation.

Fig. 2:10

Nameplate position

EB 8312-1 EN

Design and principle of operation

3 Design and principle of operation
The Type 3273 Side-mounted Handwheelwith 60 and 120 mm travel is suitable formounting on SAMSON Series 240, 250,
280 and 290 Valves or on valves with compatible interfaces together with theType 3271 Pneumatic Actuators with 1000,
1400-60, 1400-120, 2800 and
2 x 2800 cm² actuator areas. A special version of the side-mounted handwheel can also be used to move the valve when a pneumatic actuator is not mounted on it.
The side-mounted handwheel is mounted between the valve and actuator. The handwheel
can remain mounted on the valve during
maintenance and repair work or while exchanging the pneumatic actuator. The handwheel can be used in this case to move thevalve manually to its closed or open position.
The handwheel can be used to move thevalve manually opposing the spring force ofthe pneumatic actuator upon signal or supply air failure.
The worm shaft unit, consisting of the worm
shaft and worm-geared wheel, is driven overthe handwheel. The spindle nut transfers therotary motion to the threaded rod, whichmoves the valve. Depending on the directionof rotation and mounted valve, the threadedrod extends or retracts.

− Turn the handwheel clockwise: the globe
valve closes− Turn the handwheel counterclockwise: theglobe valve opens
For mounted SAMSON three-way valves
A label is affixed to the handwheel, whichindicates in which direction the threaded rod
is moved when the handwheel is turned (seeFig. 4).
The gear is locked by the locking bolt to prevent accidental adjustment.

3.1 Versions− Version with 60 mm travel for
Type 3271 Actuators with 1000 to
2800 cm² actuator areas (see Table 1
and Table 2)− Version with 120 mm travel for actuators with 1400-120, 2800 and
2 x 2800 cm² actuator areas (seeTable 4 and Table 5)− Special version without pneumatic actuator (see Table 1 and Table 3)

For mounted SAMSON globe valves
The handwheel is marked 'Open/Close' andhas directional arrows.

EB 8312-1 EN

11

Design and principle of operation

On the actuator

G2

G1

Fig. 3:

Sectional drawing ofType 3273 Side-mounted
Handwheel (60 mm travel)

G1

Yoke (belonging to the actuator)

G2

Stem connector nut (belonging to the actuator)

G4

Yoke (belonging to the valve)

G5

Stem connector nut (belonging to the valve)

G16 Threaded rod

G16

G64 Worm shaft

G64

G5

Verteilventil

close A
open BA

Diverting valve AB
Vanne de distribution

G4

Fig. 4:Mischventil

close B
open AA

Mixing valve AB
B

Vanne mélangeuse

B

Label on handwheel when mounted on
SAMSON three-way valves

On the valve

12

EB 8312-1 EN

Design and principle of operation

3.2 Technical data
Table 1: Technical data for Type 3273 up to 60 mm rated travel
Implementation

Type 3273 up to 60 mm rated travel

Max. travel range

80 mm

Max. thrust

80 kN

Max. number of turns

45

Handwheel diameter

315 or 500 mm

Mounted on actuators with actuatorareas

1000, 1400-60, 1400-120, 2800 cm²Special version: without pneumatic actuator

Materials
Body material and permissible ambient
temperature
Spindle and threaded nut
Handwheel
1)

EN-JS1030 1) · Spheroidal graphite iron · max. 100 °C
1.0619/A216 WCC · Painted cast steel · ≥–29 °C
1.5638/A352 LC3 · Painted cast steel · ≥–60 °C
1.4104/G-CuSn12Pb
Aluminum

Discontinued

EB 8312-1 EN

13

Design and principle of operation

Table 2: Dimensions and weights for Type 3273 up to 60 mm rated travel · See dimensional
drawings p. 15
Valve

DN

50 to 100

125 to 150

NPS

2 to 4

6

Seat bore

mm

≤100

≤150

Travelmm

Up to 30

Up to 60

Actuator

cm²

1000/
1400-60

H3

mm

932

1400-120

2800

1202

1000/
1400-60

1400-120

1055

2800

1225

H5

mm

295

480

418

503

H9

mm

395

480

395

480

With actuator

kg

180

Without
actuator

kg

70

70

Weight
300

575

184

303

578

DN

200 to 250

300 to 500

NPS

8 to 1012 to 20

Seat bore

mm

≤200

≤200

Travelmm

Valve

Actuator

Up to 60

cm²

1000/
1400-60

Up to 60

1400-120

2800

1000/
1400-60

1400-120

H3

mm

1055

1225

1140

1225

H5

mm

418

503

503

503

H9

mm

395

480

395

480

With actuator

kg

187

Without
actuator

kg

2800

Weight

14

305
70

580

190

310

585

70

EB 8312-1 EN

Design and principle of operation

Type 3273 for actuators up to 1400‑60 cm²,
315 mm handwheel diameterEB 8312-1 EN

H3

H5

H5

80

162
242

H3

80

162
242

H9

H9

Dimensional drawings

Type 3273 for actuators with
1400‑120 cm² and larger, 500 mm
handwheel diameter

15

Design and principle of operation

Table 3: Dimensions and weights for Type 3273 without pneumatic actuator · See dimensional drawing on p. 17
Valve

DN

125 to 150

200 to 250

NPS

68 to 10

Handwheel Ø

mm

315

500

Seat bore

mm

≤250

≤250

>250

H3

mm

Max. 920

Max. 980

Max. 980

H5

mm

418

503

503

16

EB 8312-1 EN

Design and principle of operation

H5

H3

Dimensional drawing

Type 3273 without pneumatic actuator

EB 8312-1 EN

17

Design and principle of operation

Table 4: Technical data for Type 3273 up to 120 mm rated travel
Implementation

Type 3273 up to 120 mm rated travel

Max. travel range

160 mmMax. thrust

150 kNMax. number of turns

258

Handwheel diameter

500 mmMounted on actuators with actuatorareas

1400-120, 2800, 2 x 2800 cm²

Materials
Body material and permissible ambient
temperature

EN-JS1030 1) · Spheroidal graphite iron · max. 100 °C
1.0619/A216 WCC · Painted cast steel · ≥–29 °C
1.5638/A352 LC3 · Painted cast steel · ≥–60 °C

Spindle and threaded nut

EN-GJS-500-7/1.0503

Handwheel

EN-GJL-250 (EN-JL1040)

1)

Discontinued

Table 5: Dimensions and weights for Type 3273 up to 120 mm rated travel · See dimensional drawings p. 19
Actuator

cm²

1400-1202800

2 x 2800

H10

mm

1105

1105

1105

H11

mm

220

220

220

Weight without actuator

kg

250

250

250

18

EB 8312-1 EN

Design and principle of operation

Dimensional drawings

500

H10

120

Ø500

H11

Type 3273 for 120 mm travel, 500 mm handwheel diameterEB 8312-1 EN

19

Shipment and on-site transport

4 Shipment and on-site transport
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.

4.1 Accepting the delivered
goods
After receiving the shipment, proceed as follows:
1. Check the scope of delivery. Check thatthe specifications on the handwheel
nameplate match the specifications in thedelivery note.
2. Check the shipment for transportation
damage. Report any damage to
SAMSON and the forwarding agent(refer to delivery note).
3. Determine the weight and dimensions of
the units to be lifted and transported inorder to select the appropriate lifting
equipment and lifting accessories, if required. Refer to the transport documents
and section 3.2.

4.2 Removing the packaging
from the handwheel
Proceed as follows to lift and install the
handwheel:
1. Remove the packaging from the handwheel.

4.3 Transporting and lifting thehandwheel! DANGER
Danger due to suspended loads falling.
Î Stay clear of suspended or moving
loads.
Î Close off and secure the transport paths.
! WARNING
Risk of lifting equipment tipping over andrisk of damage to lifting accessories due toexceeding the rated lifting capacity.
Î Only use approved lifting equipment andaccessories whose minimum lifting capacity is higher than the weight of theitem being transported (including the
packaging, if applicable).
! NOTICE
Risk of handwheel damage due to incorrectly attached slings.
The handwheel is not designed to take theweight of the entire handwheel unit.
Î When lifting the handwheel unit, makesure that the slings attached to the yokebear the entire load.
Î Do not attach load-bearing slings to thehandwheel.
Î Observe lifting instructions (see section 4.3.2).

2. Dispose and recycle the packaging in accordance with the local regulations.

20

EB 8312-1 EN

Shipment and on-site transport

Tip
Our after-sales service can provide more detailed transport and lifting instructions on request.

4.3.1

Transporting the handwheel

The handwheel can be transported using lifting equipment (e.g. crane or forklift).
Î Leave the handwheel in its transport container or on the pallet to transport it.
Î Observe the transport instructions.
Transport instructions− Protect the handwheel against external
influences (e.g. impact).
− Do not damage the corrosion protection(paint, surface coatings). Repair any
damage immediately.
− Protect the handwheel against moistureand dirt.
− Observe the permissible transportation
temperature of –20 to +65 °C.

4.3.2

Lifting the handwheel

To mount the handwheel, use lifting equipment (e.g. crane or forklift) to lift it.
Lifting instructions− Use a hook with safety latch to secure theslings from slipping off the hook duringlifting and transporting.
− Secure slings against slipping.

EB 8312-1 EN− Make sure the slings can be removed after mounting the handwheel.
− Prevent the handwheel from tilting or tipping.
− Do not leave loads suspended when interrupting work for longer periods oftime.
Lifting the handwheel
1. Attach the lifting tackle to the yoke.
2. Carefully lift the handwheel. Check
whether the lifting equipment and accessories can bear the weight.
3. Move the handwheel at an even pace tothe site of installation.
4. Mount the handwheel. See section 5.
5. Remove the lifting tackle.

4.4 Storing the handwheel! NOTICE
Risk of handwheel damage due to improper storage.
Î Observe the storage instructions.
Î Avoid long storage times.
Î Contact SAMSON in case of different
storage conditions or longer storage
times.
Storage instructions− Protect the handwheel against external
influences (e.g. impact).
− Secure the handwheel in the stored position against slipping or tipping over.

21

Shipment and on-site transport− Do not damage the corrosion protection(paint, surface coatings). Repair any
damage immediately.
− Protect the handwheel against moistureand dirt. Store it at a relative humidity ofless than 75 %. In damp spaces, prevent
condensation. If necessary, use a drying
agent or heating.
− Make sure that the ambient air is free ofacids or other corrosive media.
− Observe the permissible storage temperature from –20 to +65 °C.
− Do not place any objects on the handwheel.
− Pack the handwheel in airtight packaging.
Tip
SAMSON's After-sales Service can provide
more detailed storage instructions on request.

22

EB 8312-1 EN

Installation

5 Installation
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.

! NOTICE
Risk of malfunction due to different travels.
Î Make sure that the travels of the actuator,
handwheel and valve match. If in doubt,
contact our after-sales service.

! NOTICE
Risk of damage to control valve components due to excessively high or low tightening torques.
Observe the specified torques when tightening control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are not tightened far
enough may loosen.
Î Observe the specified tightening torques(u AB 0100).

! NOTICE
Risk of control valve damage due toincorrect mounting.
Î Versions with fork-shaped anti-rotation
fixture at the plug stem (see Fig. 7) must
only be mounted by our after-sales service or after they have given their consent.

5.1 Preparation for installation! NOTICE
Risk of damage to control valve components due to the use of unsuitable tools.
Certain tools are required to work on thecontrol valve.
Î Only use tools approved by SAMSON(u AB 0100).
! NOTICE
Risk of damage to control valve components due to the use of unsuitable lubricants.
The lubricants to be used depend on the material of the control valve. Unsuitable lubricants may corrode and damage surfaces.
Î Only use lubricants approved by
SAMSON (u AB 0100).

EB 8312-1 EN

Proceed as follows:Î Remove the actuator first if the valve andactuator have already been assembled
without handwheel. See associated actuator documentation.
Î Check the handwheel for damage.
Î Check whether the handwheel (model,
travel, thrust and handwheel diameter)fits the actuator and valve.
If the valve, actuator and handwheel are delivered separately, assemble the components
as described in the following section.
Î See associated valve and actuator documentation for additional mounting instructions.

23

Installation

5.2 Type 3273 Side-mounted
Handwheel for rated
travels up to 60 mm
5.2.1

Mounting thehandwheel without antirotation fixture on thevalve

See Fig. 5
1. Unthread the lock nut and stem connector nut on the valve from the plug stem.
2. Undo the castellated nut (92) to remove
the yoke from the valve.
Note
Depending on the valve (model, valve sizeetc.), the yoke (belonging to the valve) isused instead of the yoke (G4) of the handwheel.
3. Place the handwheel on the yoke (G4)
(belonging to the valve) so that it faces
the operating side. The inscription on thevalve body (1) serves as a guide (as it also faces the operating side).
4. Apply a suitable lubricant to the threadon the top bonnet (G60).
5. Place the yoke (G1) (belonging to the actuator) onto the top bonnet (G60). The
threaded rod (G16) sticks out.
6. Apply a suitable lubricant to the threadof the castellated nut (92) on the valve.

24

7. Slide the castellated nut (92) over theplug stem (5) and fasten it to the yoke
(G4). Observe tightening torques.
8. Move the handwheel to the neutral position (see section 7.1).
9. Adjust the lock nut (10) until the corresponding dimension is set (see Table 6).
10. Place the stem connector nut (G5) (belonging to the valve) onto the plug stem(5). Turn the handwheel to slowly extend
the threaded rod (G16) downward.
Tighten the stem connector nut (G5)
clockwise until it rests on the bottom locknut (10).
The top part of the stem connector nut(G5) has a left-hand thread and the bottom part a right-hand thread. The nut
pulls the plug stem (5) and threaded rod(G16) together and then holds them together.
11. Thread down the top lock nut (G51) until
it touches the stem connector nut (G5).
12. Lock the bottom lock nut (10) in place. To
proceed, use a suitable tool to hold thestem connector nut (G5) stationary. Observe tightening torques.
13. Lock the top lock nut (G51) in place. To
proceed, use a suitable tool to hold thestem connector nut (G5) stationary. Observe tightening torques.
14. Optionally, a protective bellows (G69)
can be mounted around the threadedrod (G16) on the actuator.
15. Apply a suitable lubricant to the threadof the threaded rod (G16).

EB 8312-1 EN

Installation

1

Valve body2

Valve bonnet

5

Plug with plug stem

10

Lock nut

92

Castellated nut

A7

Actuator stem

A8

Ring nut

G1

A26/
27/
29

Stem connector clamp

G67

G1

Yoke (belonging to the actuator)

G8

G2

Stem connector nut (belonging to
the actuator)

A8

A26/27/29

A7
G2

•
•
•

G42
G48

•
•

G69

•
G64
G6

•

Yoke (belonging to the valve)

G5

Stem connector nut (belonging to
the valve)

G60

G6

Handwheel

G9

G8

Fastening nut (belonging to theactuator)

G9

Fastening nut (belonging to thevalve)

G16

Threaded rod

G42

Lock nut (belonging to the actuator)

G48

Hex nut

G51

Lock nut (belonging to the valve)

G60

Top bonnet

G64

Worm shaft

G67

Neutral position reading

G69

Protective bellows

G5

•

•

G4
G16

G4
•

G51

92

•

10
5

•
•

2
1

Fig. 5:

Type 3273 Side-mounted Handwheel with 60 mm travel between a Type 3251 Valve andType 3271 Actuator with 1000 cm² actuator area

EB 8312-1 EN

25

Installation

16. Loosely thread the stem connector nut(G2) (belonging to the actuator) onto thethreaded rod (G16).

Fig. 6:26

Type 3273 Handwheel for Series 240 Valves (DN 100 to 150). Shown with Type 3271
Actuator with 1000 cm² actuator area.

EB 8312-1 EN

Installation

Fig. 7:

Type 3273 Handwheel with optional fork-shaped anti-rotation fixture for Series 250 Valves(DN 50 to 100). Shown with Type 3271 Actuator with 1000 cm² actuator area.

EB 8312-1 EN

27

Installation

Table 6: Dimension of lock nut (belonging to the valve)
Valve size DN

250

50 to 100240

100 to 150

250

125 to 150

240/250

200 to 250 1)

Type 3253

250

240/250250 2)

240/250300 to 400

Dimension X
[mm]
37

X

Type/Series

82

2)

126

Up to 200 mm seat bore
At 250 mm seat bore

1)
2)

Legend for Fig. 8
1

Valve body2

Valve bonnet

5

Plug with plug stem

10

Lock nut

92

Castellated nut

A7

Actuator stem

A8
A26/
27/
29
G1

Yoke (belonging to the actuator)

G2

Stem connector nut (belonging to theactuator)

G4

Yoke (belonging to the valve)

G5

Stem connector nut (belonging to thevalve)

28

G6

Handwheel

G8

Fastening nut (belonging to the actuator)

G9

Fastening nut (belonging to the valve)

G16

Threaded rod

G42

Lock nut (belonging to the actuator)

Ring nut

G48

Hex nut

G51

Lock nut (belonging to the valve)

Stem connector clamp

G60

Top bonnet

G64

Worm shaft

G67

Neutral position reading

G69

Protective bellows

EB 8312-1 EN

Installation

A8

A26/27/29
G1

G42

G16

G48

G67

G69

G8

A8

A26/27/29

A7

G1

G48

G16

G69
G60

1058

•

G9

G64
G6

G16

G6

•
G9
G5

G4

418
Fig. 8:

G60
G64

G5
G51

G8

1207

G2

G4
503

A7

Type 3273 Handwheel with 60 mm travel for mounting on Series 240 and 250 Valves, withclamp-type anti-rotation fixture
Left: with Type 3271 Actuator with 1000 or 1400-60 cm² actuator area
Right: with Type 3271 Actuator with 1400-120 or 2800 cm² actuator area

EB 8312-1 EN

29

Installation

5.2.2

Mounting the handwheel with clamp-type
anti-rotation fixture on
the valve

See Fig. 8, Fig. 9, Fig. 10 and Fig. 11
Before mounting the handwheel and actuator, the external clamp-type anti-rotation fixture must be mounted onto the plug stem insome cases. The valve must be closed beforehand.
Series 240 Valves (DN 200/NPS 8 andlarger) and Series 250 Valves (DN 125/
NPS 6)
1. Unthread the lock nut and stem connector nut on the valve from the plug stem (ifthey are mounted).
2. Undo the castellated nut (92) to remove
the yoke from the valve.
Note
Depending on the valve (model, valve sizeetc.), the yoke (belonging to the valve) isused instead of the yoke (G4) of the handwheel.
3. Insert ball bearings (310) into the recesses in the bonnet.
4. Place the yoke (G4) on the bonnet insuch a way that the ball bearings fit into
the recesses of the yoke.
5. Fasten the yoke (G4) using the castellated nut (92).
6. Use a soft-faced hammer or lever press
to press the sliding washers (309) with30

their beveled part first (without using any
lubricant) into the recesses of the clamps(301) as far as they will go. Remove any
excess material.
7. Apply a thin film of lubricant (114) to thethreads of the stem connector nut (G5)and screws (303).
! NOTICE
Impaired functioning due to incorrectly applied lubricant.
Î Do not apply any lubricant to the threadsof the clamps (301) or the plug stem.
8. Position the clamps (301) and stem connector nut (G5) on the plug stem according to Table 8 and tighten screws (303)and washers (304) by hand.
9. Place the handwheel on the yoke (G4)
(belonging to the valve) so that it faces
the operating side. The inscription on thevalve body (1) serves as a guide (as it also faces the operating side).
10. Apply a suitable lubricant to the threadon the top bonnet (G60).
11. Fasten the handwheel on the yoke (G4)with the fastening nut (G9).
12. Move the handwheel to the neutral position (see section 7.1).
13. Turn the handwheel to slowly extend thethreaded rod (G16) downward until thethreaded rod (G16) rests on the stem
connector nut (G5).
14. Thread the lock nut (G51) upwards on
the threaded rod (G16).

EB 8312-1 EN

Installation

15. Turn the stem connector nut (G5) clockwise (looking onto the plug stem) by the
specified number of turns (see Table 8).
The top part of the stem connector nut(G5) has a left-hand thread and the bottom part a right-hand thread. The nut
pulls the plug stem (5) and threaded rod(G16) together and then holds them together.
16. Thread down the top lock nut (G51) until
it touches the stem connector nut (G5).
17. Gradually tighten the screws (303) in acrisscross pattern. Observe the tightening
torques specified in Table 7.
Table 7: Tightening torques
Screw size

Tightening torque
[Nm]

M12

50

M16

121

20. Place the yoke (G1) (belonging to the actuator) onto the top bonnet (G60). The
threaded rod (G16) sticks out.
21. Optionally, a protective bellows (G69)
can be mounted around the threadedrod (G16) on the actuator.
22. Apply a suitable lubricant to the threadof the threaded rod (G16).
23. Loosely thread the stem connector nut(G2) (belonging to the actuator) onto thethreaded rod (G16).
24. Mount the actuator. See section 14.
25. Fasten the warning label (if used) andtravel indicator scale to the yoke (G1) on
the actuator using the screws.

18. Check and ensure the following:− There is a nominal clearance of 0.5
to 1 mm between the sliding washers
and their contact surface on the yokeon each side (see detailed view Y in
Fig. 10).
− The anti-rotation fixture does not get
stuck on the yoke and can move freely in the direction of travel.
19. Lock the top lock nut (G51) in place. To
proceed, use a suitable tool to hold thestem connector nut (G5) stationary. Observe tightening torques.

EB 8312-1 EN

31

Installation

G4

Plug stem

92
G4

Yoke (belonging to the valve)

92

Castellated nut

310

Ball bearing

310

310

Fig. 9:32

Overview of yoke assembly with travel indicator scale in the standard version

EB 8312-1 EN

Installation

Y

309
301

301

304
114
303

309
G5

Stem

114

Lubricant Gleitmo 1763 V

301

Clamps303

Screws304

Washers309

Sliding washers

0

G5

1 - 0,50

1 - 0,5

Plug stemY

Fig. 10: Overview of clamp-type anti-rotation fixture assembly in the standard version

EB 8312-1 EN

33

HK

HI

HL

HN

HO

HU

Installation

Fig. 11: Mounting dimensions

34

EB 8312-1 EN

Installation

Table 8: Mounting dimensions (see Fig. 11 for dimensional drawing)
Actuator[cm²]

Travel[mm]

Actuator
preloading

[%]

[mm]

Dimension when the valve is closed [mm]Number ofturns (G5)(mounting)

HK

HL

HN

HO

Beforemounting
HU

192

87

48

105

70

10

12
(mounted
HU = 28 mm)

192

87

105

70

14

12
(mounted
HU = 32 mm)

192

87

105

70

14

12
(mounted
HU = 32 mm)

HI

DN 125 to 150/NPS 6 · Standard version
1000
1400-60
1400-120

2800

60

0

0

60

25

15

60

0

0

60

50

60

60

0

0

60

75

90

63
48
48

DN 200 to 250/NPS 8 to 10 up to seat bore 200 · Standard version
1000
1400-60
1400-120

2800

60

0

0

60

25

15

60

0

0

60

50

60

60

0

0

60

75

90

195

87

195

87

195

87

66
66
61
48
61
48

108

65

12

12
(mounted
HU = 30 mm)

108

65

18

12
(mounted
HU = 36 mm)

108

65

18

12
(mounted
HU = 36 mm)

DN 250/NPS 10, seat bore 250 and DN 300 to 500/NPS 12 to 20 · Standard version
1000
1400-60
1400-120

2800

60

0

0

60

25

15

60

0

0

60

50

60

60

0

0

60

75

90

EB 8312-1 EN

237

87

100

150

110

12

12
(mounted
HU = 30 mm)

237

87

100

150

110

18

12
(mounted
HU = 36 mm)

237

87

100

150

110

18

12
(mounted
HU = 36 mm)

35

Installation

5.2.3

Mounting the actuatoron the handwheel! WARNING
Risk of personal injury due to incorrect removal of the anti-rotation fixture withclamps under tension.
Once the actuator has been mounted on thevalve and the assembly is ready for use, theclamps (301) of the anti-rotation fixture on
the plug stem are under tension.
Î Follow the instructions in this document
during mounting or removal.
Î Do not loosen the screws (303) of theanti-rotation fixture while the force
generated by the supply air and/or theactuator springs is transmitted to theactuator stem and the stem (9).
Î First remove the actuator from the valve
or ensure it cannot transmit any forces tothe actuator stem before removing theanti-rotation fixture on the plug stem.
Tip
The handwheel and actuator are assembled
with special attention paid to the actuator's
bench range and direction of action. These
details are specified on the actuator nameplate (see the associated actuator documentation).
1. Move the handwheel to the neutral position (see section 7.1).
2. Remove the clamps of the stem connector(A26/27/29) and the ring nut (A8) on
the actuator.

36

3. Apply a suitable lubricant to the threaded nipple on the yoke (1) on the actuator.
4. In the "actuator stem extends" version:
apply a signal pressure to the connection
on the bottom diaphragm chamber andcompletely retract the actuator stem (A7).
In the "actuator stem retracts" version:vent the actuator to retract the actuator
stem (A7) completely.
5. Place the actuator on the yoke (G1).
6. Apply a suitable lubricant to the ring nut(A8). Slide the ring nut (A8) over the actuator stem (A7) and fasten it on the actuator. Observe tightening torques.
7. Adjust the rated travel of the actuator using the stem connector nut (G2).
The rated travel corresponds to the distance from the bottom of the actuator
stem to the tip of the stem connector nut.
8. Use a suitable tool to lock the stem connector nut (G2) at the lock nut (G42) on
the actuator.
9. In the "actuator stem extends" version:vent the actuator to extend the actuator
stem (A7) completely. It must touch thestem connector nut (G2).
In the "actuator stem retracts" version:
apply a signal pressure to the actuator toextend the actuator stem (A7) completely. It must touch the stem connector (G2).
10. Connect the threaded rod (G16) and actuator stem (A7) using the stem connector clamps (A26/27/29).

EB 8312-1 EN

Installation

5.2.4

Mounting the handwheel

1. Use a suitable tool to insert the handwheel (G6) as far as it will go onto theworm shaft (G64). See Fig. 12.
2. Place on the washer (G15) and fasten
tight the handwheel using the hex headscrew (G41).

G64

G6 G15 G41

G6

Handwheel

G15

Washer

G41

Screw

G64

Worm shaft

Fig. 12: Mounting the handwheel

EB 8312-1 EN

37

Installation

•

A8
G69
G6
•

A7

•

A26/27/29
G2

•

G16
G137

•

G18

G5
10

•

G64

G18

•

92
•

•

G60

2

5
•

1
•

Three-dimensional view ofhandwheel and actuator

Fig. 13: Type 3273 Side-mounted Handwheel with 120 mm travel between a Type 3251 Valve andType 3271 Actuator with 2800 cm² actuator area

38

EB 8312-1 EN

Installation

5.3 Type 3273 Side-mounted
Handwheel for rated
travels up to 120 mm

5. Slide the castellated nut (92) over theplug stem (5) and fasten it to the yoke(G60). Observe tightening torques.

See Fig. 13

6. Move the handwheel to the neutral position (see section 7.1).

5.3.1

7. Adjust the lock nut (10) until the corresponding dimension is set (see Table 6).

Mounting the handwheel
without anti-rotation
fixture on the valve

1. Unthread the lock nut and stem connector nut on the valve from the plug stem.
2. Undo the castellated nut (92) to remove
the yoke from the valve.
3. Place the handwheel on the bonnet (2) sothat it faces the operating side. The inscription on the valve body (1) serves asa guide (as it also faces the operatingside).
4. Apply a suitable lubricant to the threadof the castellated nut (92) on the valve.

8. Place the stem connector nut (G5) (belonging to the valve) onto the plug stem(5). Turn the handwheel to slowly extend
the threaded rod (G16) downward.
Tighten the stem connector nut (G5)
clockwise until it rests on the bottom locknut (10).
The top part of the stem connector nut(G5) has a left-hand thread and the bottom part a right-hand thread. The nut
pulls the plug stem (5) and threaded rod(G16) together and then holds them together.

Legend for Fig. 13
1

Valve body2

Valve bonnet

5

Plug with plug stem

10

Bottom lock nut (belonging to thevalve)

92

Castellated nut

A7

Actuator stem

A8

Ring nut

A26/
27/29

Stem connector clamp

EB 8312-1 EN

G2

Stem connector nut (belonging to theactuator)

G5

Stem connector nut (belonging to thevalve)

G6

Handwheel

G16

Threaded rod

G18

Top lock nut (belonging to the valve)
and lock nut (belonging to the actuator)

G60

Yoke

G64

Worm shaft

G69

Protective bellows

G137

Spindle with neutral position indicator39Installation

9. Thread down the top lock nut (G18) on
the valve until it touches the stem connector nut (G5).
10. Lock the bottom lock nut (10) in place. To
proceed, use a suitable tool to hold thestem connector nut (G5) stationary. Observe tightening torques.
11. Lock the top lock nut (G18) on the valve
in place. To proceed, use a suitable tool
to hold the stem connector nut (G5) stationary. Observe tightening torques.
12. Optionally, a protective bellows (G69)
can be mounted around the threadedrod (G16) on the actuator.
13. Apply a suitable lubricant to the threadof the threaded rod (G16).
14. Loosely thread the stem connector nut(G2) (belonging to the actuator) onto thethreaded rod (G16).

5.3.2

Mounting the handwheel with fork-shaped
anti-rotation fixture on
the valve! NOTICE
Risk of control valve damage due to incorrect mounting.
Î Versions with fork-shaped anti-rotation
fixture at the plug stem (see Fig. 13/
three-dimensional view) must only be
mounted by our after-sales service or after they have given their consent.

40

5.3.3

Mounting the actuatoron the handwheel

Tip
The handwheel and actuator are assembled
with special attention paid to the actuator's
bench range and direction of action. These
details are specified on the actuator nameplate (see the associated actuator documentation).
1. Move the handwheel to the neutral position (see section 7.1).
2. Remove the clamps of the stem connector(A26/27/29) and the ring nut (A8) on
the actuator.
3. Apply a suitable lubricant to the threaded nipple on the yoke (G60).
4. In the "actuator stem extends" version:
apply a signal pressure to the connection
on the bottom diaphragm chamber andcompletely retract the actuator stem (A7).
In the "actuator stem retracts" version:vent the actuator to retract the actuator
stem (A7) completely.
5. Place the actuator on the yoke (G60).
6. Apply a suitable lubricant to the ring nut(A8). Slide the ring nut (A8) over the actuator stem (A7) and fasten it on the actuator. Observe tightening torques.
7. Adjust the rated travel of the actuator
over the stem connector nut (G2).
The rated travel corresponds to the distance from the bottom of the actuator
stem to the tip of the stem connector nut.

EB 8312-1 EN

Installation

8. Use a suitable tool to lock the stem connector nut (G2) at the lock nut (G18) on
the actuator.
9. In the "actuator stem extends" version:vent the actuator to extend the actuator
stem (A7) completely. It must touch thestem connector nut (G2).
In the "actuator stem retracts" version:
apply a signal pressure to the actuator toextend the actuator stem (A7) completely. It must touch the stem connector (G2).

5.3.4

Mounting the handwheel

1. Use a suitable tool to insert the handwheel (G6) as far as it will go onto theworm shaft (G64). See Fig. 14.
2. Place on the washer (G15). Place theserrated lock washer (G122) underneaththe screw (G41) and fasten tight the
handwheel with the screw.

10. Connect the threaded rod (G16) and actuator stem (A7) using the stem connector clamps (A26/27/29).

G64

G6

G15
G122

G41

G6

Handwheel

G15

Washer

G41

Hex bolt

G64

Worm shaft

G122

Serrated lock washer

Fig. 14: Mounting the handwheel

EB 8312-1 EN

41

Start-up

6 Start-up
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.

6.1 Quick check
To test the valve's ability to function after
mounting the side-mounted handwheel, thefollowing quick checks can be performed:
Travel motion
The movement of the actuator stem must be
linear and smooth.
Î Open and close the valve, observing the
movement of the actuator stem.
Î Apply the maximum and minimum control signals to check the end positions of
the valve.
HandwheelÎ Shut off the signal pressure line.
Î Unlock the handwheel (see section 7.2).
Î Turn the handwheel to open and close
the valve.
Fail-safe position
Î Shut off the signal pressure line.
Î Check whether the valve moves to thefail-safe position.

42

EB 8312-1 EN

Operation

7 Operation
The handwheel is ready for use when mounting and start-up have been completed.
! WARNING
Crush hazard arising from moving parts(actuator stem, threaded rod, plug stem,
handwheel).
Î Do not insert hands or finger into theyoke while the valve is in operation.
! NOTICE
Operation disturbed by a blocked actuator
stem, threaded rod or plug stem.
Î Do not impede the movement of the actuator stem, threaded rod or plug stem byinserting objects into their path.
Groove aligned withthe guide tube

Fig. 15: Neutral position in automatic operation · Version with 60 mm travel

EB 8312-1 EN

The valve position is adjusted by the handwheel in manual operation. It can be adjusted either when the supply air is still appliedor has failed or when no pneumatic actuator
is mounted onto the valve (special version).

7.1 Working in automatic
operation
In automatic operation, the valve is movedby the pneumatic signal. The side-mounted
handwheel is locked by the locking bolt toprevent accidental adjustment of the valve
travel.
60 mm travel
In automatic operation, the handwheel is in
the neutral position. The pin of the neutral
position indicator moves into the yoke so that

Groove visible

Fig. 16: Manual operation · Version with 60 mm
travel43

Operation

the circumferential groove at the top isaligned with the top of the guide tube (seeFig. 15).

After the handwheel has been unlocked andturned, the anti-rotation fixture slides up or
down on the rib of the yoke

After the handwheel has been unlocked andturned, the pin rises (see Fig. 16) or disappears into the yoke.
120 mm travel
In automatic operation, the handwheel is in
the neutral position. The arrow of the anti-rotation fixture points to the label affixed to theyoke of the handwheel (see Fig. 17).

Fig. 17: Neutral position in automatic operation · Version with 120 mm travel44

EB 8312-1 EN

Operation

7.2 Manual operation! NOTICE
Risk of handwheel damage due to the useof unsuitable tools.
Î To turn the handwheel, do not use any
additional tools, such as a lever or
wrench.
With mounted pneumatic actuator
1. To change from automatic to manual operation, unlock the handwheel. Pull thelocking bolt and turn it 90° to unlock the
handwheel (see Fig. 18).
2. Turn the handwheel until the valve reaches its end position.
! NOTICE
Risk of valve damage due to the use of excessive force.
Î Do not turn the handwheel any further
by exerting force after the valve hasreached its end position.

4. Lock the handwheel. Turn the locking bolt
by at least 90° until it engages again tolock the handwheel (see Fig. 18).
Special version without pneumatic actuator
Note
There is no neutral travel in versions without
pneumatic actuator. One turn of the handwheel always immediately causes a change
in valve travel.
1. Pull the locking bolt and turn it 90° to unlock the handwheel (see Fig. 18).
2. Turn the handwheel. The turning direction depends on the mounted valve (seeTable 9).
3. Turn the locking bolt by at least 90° until
it engages again to lock the handwheel(see Fig. 18).

Note
− The valve travel can only be reached after
the neutral travel of the handwheel has
been overcome. You will notice at this pointthat the force needed increases.
− The turning direction depends on themounted valve (see Table 9).
3. To change from manual to automatic operation, put the handwheel into the neutral position (see section 7.1).

EB 8312-1 EN

45

Operation

Fig. 18: Locking and unlocking the locking bolt · Left: 60 mm travel · Right: 120 mm travel

Table 9: Turning direction of the handwheel
SAMSON globe
valve

SAMSON threeway valve

Open the valve

Close the valve

Turn handwheel counterclockwise

Turn handwheel clockwise

Verteilventil

close A
open BA

Diverting valve AB
Vanne de distribution

Mischventil

close B
open AA

Mixing valve AB
B

Vanne mélangeuse

B

Tip
The handwheel is marked 'Open/Close' and has directional arrows in the version for
SAMSON globe valves.
A label is affixed to the version for SAMSON three-way valves on the handwheel, which indicates in which direction the threaded rod is moved when the handwheel is turned (see Table 9).

46

EB 8312-1 EN

Malfunctions

8 Malfunctions
Depending on the operating conditions, check the handwheel at certain intervals to prevent
possible failure before it can occur. Plant operators are responsible for drawing up an inspection and test plan.
Tip
Our after-sales service can support you in drawing up an inspection and test plan for yourplant.
Troubleshooting
Malfunction

Possible reasons

Recommended action

Actuator or plug stem/threadedrod does not move on demand.

Actuator is blocked.

Check attachment.
Remove the blockage.

Insufficient signal pressure

Check the signal pressure.
Check the signal pressure line forleakage.

The handwheel is still locked.

Unlock the handwheel (see section 7.2).

The valve plug is already in theend position.

–

The bolt is worn.

Lubricate the locking bolt.
If the locking bolt remains
blocked, contact our after-sales
service.

The handwheel cannot be
turned.

The locking bolt cannot be unlocked.

NoteContact our after-sales service for malfunctions not listed in the table.

EB 8312-1 EN

47

Servicing

9 Servicing
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.

Tools
See document u AB 0100 for details on
suitable tools.

Note
The handwheel was checked by SAMSON
before it left the factory.
− The product warranty becomes void if service or repair work not described in these
instructions is performed without prioragreement by our after-sales service.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
Note
See associated valve and actuator documentation for instructions on how to perform
maintenance on the valve and actuator.

9.1 Ordering spare parts andoperating supplies
Contact your nearest SAMSON subsidiaryor SAMSON's After-sales Service for information on spare parts, lubricants and tools.
Spare parts
See section 14 for details on spare parts.
LubricantSee document u AB 0100 for details on
suitable lubricants.

48

EB 8312-1 EN

Decommissioning

10 Decommissioning! WARNING
Crush hazard arising from moving parts.
The handwheel contains moving parts (actuator stem, threaded rod, plug stem, handwheel), which can injure hands or fingers if
inserted into it.
Î Do not insert hands or finger into theyoke while the valve is in operation.
Î While working on the handwheel, disconnect and lock the pneumatic air supply as well as the control signal.
Î Use the locking bolt to lock the handwheel.
Note
See associated valve and actuator documentation for additional instructions on decommissioning.
To decommission the handwheel for maintenance and repair work on the valve or fordisassembly, proceed as follows:
1. Put the control valve out of operation.
See associated valve documentation.
2. Disconnect the pneumatic air supply todepressurize the actuator.
3. Release any stored energy.
4. Lock the handwheel.

EB 8312-1 EN

49

Removal

11 Removal− The control valve is put out of operation(see associated valve documentation).

! WARNING
Crush hazard arising from moving parts.
The handwheel contains moving parts (actuator stem, threaded rod, plug stem, handwheel), which can injure hands or fingers if
inserted into it.
Î Do not insert hands or finger into theyoke while the valve is in operation.
Î While working on the handwheel, disconnect and lock the pneumatic air supply as well as the control signal.
Î Use the locking bolt to lock the handwheel.

− The handwheel is locked.

! NOTICE
Risk of damage to control valve components due to excessively high or low tightening torques.
Observe the specified torques when tightening control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are not tightened far
enough may loosen.
Î Observe the specified tightening torques(u AB 0100).
Note
See associated valve and actuator documentation for additional removal instructions.
Before removing the valve, make sure the following conditions are met:50

11.1 Removing the handwheelfrom the actuator andvalve! WARNING
Risk of personal injury due to incorrect removal of the anti-rotation fixture withclamps under tension.
Once the actuator has been mounted on thevalve and the assembly is ready for use, theclamps (301) of the anti-rotation fixture on
the plug stem are under tension.
Î Follow the instructions in this document
during mounting or removal.
Î Do not loosen the screws (303) of the anti-rotation fixture while the force generated by the supply air and/or the actuator
springs is transmitted to the actuator stemand the stem (9).
Î First remove the actuator from the valve
or ensure it cannot transmit any forces tothe actuator stem before removing theanti-rotation fixture on the plug stem.

a) Side-mounted handwheel for
rated travels up to 60 mm
1. Undo the stem connector clamps(A26/27/29) between the handwheel
and actuator.

EB 8312-1 EN

Removal

2. Loosen the stem connector nut (G2) andlock nut (G42) between the handwheel
and actuator.

b) Side-mounted handwheel for
rated travels up to 120 mm

3. For actuators with "stem extends" failsafe action and/or preloaded springs:
apply approx. 50 % signal pressure toopen the valve.

1. Undo the stem connector clamps(A26/27/29) between the handwheel
and actuator.

4. Loosen the ring nut (A8).
5. Disconnect the signal pressure again.
6. Remove the ring nut (A8) and actuatorfrom the handwheel. Loosely thread thering nut onto the actuator stem (A7).
7. Remove the protective bellows (G69).
8. Loosen the top lock nut (G51) between
the handwheel and valve, while holding
the stem connector nut (G5) stationary.
9. Loosen the top lock nut (10), while holding the stem connector nut (G5) stationary.
10. Loosen the stem connector nut (G5).
Tip
Turn the handwheel to retract the threadedrod (G16). This makes it easier to remove thestem connector nut (G5) from the plug stem.
11. Loosen the castellated nut (92).
12. Remove the handwheel from the valve.
13. Loosely thread the stem connector nut
and lock nuts onto the threaded rod(G16).

2. Loosen the stem connector nut (G2) andlock nut (G18) between the handwheel
and actuator.
3. For actuators with "stem extends" failsafe action and/or preloaded springs:
apply approx. 50 % signal pressure toopen the valve.
4. Loosen the ring nut (A8).
5. Disconnect the signal pressure again.
6. Remove the ring nut (A8) and actuatorfrom the handwheel. Loosely thread thering nut onto the actuator stem (A7).
7. Remove the protective bellows (G69).
8. Loosen the top lock nut (G18) between
the handwheel and valve, while holding
the stem connector nut (G5) stationary.
9. Loosen the top lock nut (10), while holding the stem connector nut (G5) stationary.
10. Loosen the stem connector nut (G5).
Tip
Turn the handwheel to retract the threadedrod (G16). This makes it easier to remove thestem connector nut (G5) from the plug stem.
11. Loosen the castellated nut (92).
12. Remove the handwheel from the valve.

EB 8312-1 EN

51

Removal

13. Loosely thread the stem connector nut
and lock nuts onto the threaded rod(G16).

11.2 Final steps
Mounting the actuator (without handwheel)on the valve
1. Mount the actuator on the valve. See associated valve and actuator documentation.
Note
Depending on the valve (model, valve sizeetc.), it may be necessary to first mount theyoke of the valve.
Storing the valve and actuator separately
1. Fasten the lock nut (10) and stem connector nut (9) on the valve.
2. If necessary, place the yoke of the valve
on the bonnet (2) and fasten using thecastellated nut (92). Observe tightening
torques.
3. Slide the ring nut (A8) over the actuator
stem (A7).
4. Fasten the ring nut (A8) and stem connector clamps (A26/27/29). Observetightening torques.

52

EB 8312-1 ENRepairs

12 Repairs
If the valve does not function properly according to how it was originally sized ordoes not function at all, it is defective andmust be repaired or exchanged.
! NOTICE
Risk of valve damage due to incorrect
service or repair work.
Î Do not perform any repair work on yourown.
Î Contact SAMSON's After-sales Service
for repair work.

12.1 Returning devices to
SAMSON
Defective devices can be returned to
SAMSON for repair.
Proceed as follows to return devices:− Completed Declaration on
Contamination, which can be
downloaded from our website atu www.samsongroup.com > Service& Support > After-sales Service.
After checking your registration, we will
send you a return merchandise authorization (RMA).
3. Attach the RMA (together with the Declaration on Decontamination) to the outside of your shipment so that the documents are clearly visible.
4. Send the shipment to the address givenon the RMA.
Note
Further information on returned devices andhow they are handled can be found at
u www.samsongroup.com > Service &Support > After-sales Service.

1. Exceptions apply concerning somespecial device models
u www.samsongroup.com > Service &Support > After-sales Service.
2. Send an e-mailu retouren@samsongroup.com to register the return shipment including the following information:− Type− Article number− Configuration ID− Original order

EB 8312-1 EN

53

Disposal

13 Disposal
Î Observe local, national and international refuse regulations.
Î Do not dispose of components, lubricantsand hazardous substances together withyour household waste.

54

EB 8312-1 EN

Annex14 Annex
14.1 After-sales service
Contact our after-sales service for support
concerning service or repair work or whenmalfunctions or defects arise.
E-mail address
You can reach our after-sales service ataftersalesservice@samsongroup.com.
Addresses of SAMSON AG and its subsidiaries
The addresses of SAMSON AG, its subsidiaries, representatives and service facilities
worldwide can be found on our website(www.samsongroup.com) or in all SAMSON
product catalogs.
Required specifications
Please submit the following details:− Order number and position number inthe order− Type designation and model number− Travel (60 or 120 mm)− Handwheel diameter (315 or 500 mm)− Mounted valve (model and valve size)− Mounted actuator (model and actuatorarea)− Installation drawing

EB 8312-1 EN

55

Annex14.2 Spare parts
14.2.1 Side-mounted handwheel for rated travels up to 60 mm
1 Yoke (belonging to the actuator)
2 Stem connector nut (belonging to theactuator)

51 Lock nut (belonging to the valve; hex nut
with left-hand thread)
52 Retaining ring

4 Yoke (belonging to the valve)

53 Axial needle bearing

5 Stem connector nut (belonging to thevalve)

54 Sliding washer

6 Handwheel

61 Bottom bonnet

8 Fastening nut (belonging to the actuator)
9 Fastening nut (belonging to the valve)
10 Compression spring
11 Stop screw
12 Locking bolt
13 Compression spring
15 Washer
16 Threaded rod

60 Top bonnet
63 Spindle nut
64 Worm shaft
65 Worm-geared wheel
66 Cover67 Neutral position indicator
68 Washer
69 Protective bellows

30 Thrust ball bearing

101 Fork-shaped anti-rotation fixture (optional)

31 Thrust ball bearing

102 Holder (optional)

32 Needle bearing

110 Sleeve (optional)

33 Shim111 Sleeve (optional)

34 Retaining ring

112 Screw (optional)

36 Retaining ring

113 Screw (optional)

37 Retaining ring

114 Washer (optional)

38 Key drive

115 Screw (optional)

39 Key drive
40 Hex screw
41 Hex screw
42 Hex nut
43 Retaining ring
44 Grooved pin
45 Grease fitting
46 O-ring
47 Button
48 Hex nut

56

EB 8312-1 EN

2
42
43
48
16

68
69

10

46

67

8
1

45
13

36
66
31

32

11
47
44 12
65
38
54

5

64

39

30
33
34
63
52
53
54
61

4

51

60

40
31
36
37

9

102
110
111

101
115

113
112
114

EB 8312-1 EN

15
41
6

57

Annex14.2.2 Side-mounted handwheel for rated travels up to 120 mm
2 Stem connector nut (belonging to theactuator)

114 Washer (optional)

5 Stem connector nut (belonging to thevalve)

122 Serrated lock washer

115 Screw (optional)
123 Bracket

6 Handwheel

124 Hex screw

11 Stop screw

125 Label indicating neutral position

12 Pin126 Arrow indicating neutral position 1)

13 Compression spring

128 Cover

15 Washer

129 Cover

16 Threaded rod

130 Cap screw

17 Bushing (optional)

131 Axial needle bearing

18 Lock nut (belonging to the actuator andvalve)

132 Sliding washer
133 Retaining ring

20 Spacer (optional)

134 Combined needle bearing

24 O-ring

135 Spindle nut

31 Thrust ball bearing

136 Hex screw

33 Ring

137 Spindle with neutral position indicator(125, 126)

34 Retaining ring
36 Retaining ring

138 Needle bearing set combined

39 Key drive

139 Distance ring

41 Hex screw
44 Grooved pin
47 Button

140 Threaded pin
1)

Plate is riveted

55 Radial shaft seal
60 Yoke
64 Worm shaft
65 Worm wheel rim
66 Protective cap
68 Ring
69 Protective bellows
101 Fork-shaped anti-rotation fixture(optional)
102 Holder (optional)
108 Spacer (optional)
110 Sleeve (optional)
112 Screw (optional)

58

EB 8312-1 EN

130
130

2

129

66

69

18

68

20

24
34
33

60

138

102

133

47
140
13

131

110

11
44
12
124

132

134
132

112

125 123

64
114
39

130
128
6

137

36
31
36
55

122

138

41
15
108/18

17

139

5

16

122

101

135
65

136

EB 8312-1 EN

126

115

59

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samsongroup.com · www.samsongroup.com

2021-07-08 · English

EB 8312-1 EN