Samson 3271 Service manual

Translation of original instructions
EB 8310-6 EN
Mounting and
Operating Instructions
Edition March 2017
Type3271 and Type3277 Pneumatic Actuators
Actuator area: 240, 350, and 700cm²
Type3271
Type3277

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.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesser[email protected]).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.
Denition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
2 EB 8310-6 EN

Contents
EB 8310-6 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................7
1.2 Notes on possible personal injury ...................................................................8
1.3 Notes on possible property damage................................................................9
2 Markings on the device ...............................................................................10
2.1 Actuator nameplate......................................................................................10
3 Design and principle of operation ................................................................11
3.1 Type3271...................................................................................................11
3.2 Type3277...................................................................................................12
3.3 Direction of action........................................................................................13
3.4 Signal pressure routing.................................................................................13
3.4.1 Type3271...................................................................................................13
3.4.2 Type3277...................................................................................................13
3.5 Fail-safe action ............................................................................................13
3.5.1 Version with direction of action "actuator stem extends" (FA) ...........................14
3.5.2 Version with direction of action "actuator stem retracts" (FE)............................14
3.6 Versions ......................................................................................................14
3.7 Technical data .............................................................................................15
4 Measures for preparation............................................................................19
4.1 Unpacking ..................................................................................................19
4.2 Transporting and lifting ................................................................................19
4.2.1 Transporting ................................................................................................20
4.2.2 Lifting..........................................................................................................20
4.3 Storage.......................................................................................................22
4.4 Preparation for installation............................................................................23
5 Mounting and start-up.................................................................................24
5.1 Mounting the actuator onto the valve.............................................................24
5.2 Preloading the springs..................................................................................27
5.2.1 Tensioning the springs ..................................................................................27
5.2.2 Increasing the actuator thrust ........................................................................27
5.2.3 Adapting the travel range.............................................................................28

Contents
4 EB 8310-6 EN
6 Operation...................................................................................................30
6.1 Throttling service..........................................................................................30
6.2 On/off service.............................................................................................30
6.3 Reversal of the direction of action..................................................................31
6.3.1 Reversal of the direction of action from stem extends to stem retracts ................31
6.3.2 Reversal of the direction of action from stem retracts to stem extends ................33
6.4 Version with handwheel................................................................................35
6.4.1 Extending the actuator stem manually............................................................35
6.4.2 Retracting the actuator stem manually............................................................35
6.5 Adjusting the travel stop ...............................................................................36
6.5.1 Bottom travel stop (minimum travel) ...............................................................36
6.5.2 Top travel stop (maximum travel) ...................................................................36
7 Servicing.....................................................................................................38
7.1 Replacing the diaphragm .............................................................................39
7.2 Replacing the actuator stem seals ..................................................................42
7.3 Preparation for return shipment.....................................................................44
7.4 Ordering spare parts and operating supplies .................................................45
8 Malfunctions ...............................................................................................46
9 Decommissioning and disassembly ..............................................................48
9.1 Decommissioning.........................................................................................48
9.2 Removing the actuator from the valve ............................................................48
9.3 Relieving the spring compression in the actuator.............................................48
9.4 Disposal......................................................................................................48
10 Annex.........................................................................................................50
10.1 After-sales service........................................................................................50
10.2 Spare parts .................................................................................................51

EB 8310-6 EN 5
Safety instructions and measures
1 Safety instructions and measures
Intended use
The SAMSON Type3271 and Type3277 Actuators are designed for operating a mounted
globe valve. In combination with the valve, the actuators are used to shut off the ow of liq-
uids, gases or vapors in the pipeline. Depending on the version, the actuators are suitable
for throttling or on/off service. The actuators can be used in processing and industrial plants.
The actuators are designed to operate under exactly dened conditions (e.g. thrust, travel).
Therefore, operators must ensure that the actuators are only used in applications that meet
the specications used for sizing the actuators at the ordering stage. In case operators intend
to use the actuators in other applications or conditions than specied, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the
valve for its intended purpose or for damage caused by external forces or any other external
factors.
ÎRefer to the technical data and nameplate for limits and elds of application as well as
possible uses.
Reasonably foreseeable misuse
The actuator is not suitable for the following applications:
−Use outside the limits dened during sizing and in the technical data
−Use outside the limits dened by the accessories mounted on the actuator
Furthermore, the following activities do not comply with the intended use:
−Use of non-original spare parts
−Performing service and repair work not described in these instructions
Qualications of operating personnel
The actuator must be mounted, started up, serviced, and repaired by fully trained and quali-
ed personnel only; the accepted industry codes and practices are to be observed. Accord-
ing 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 to their
specialized training, their knowledge and experience as well as their knowledge of the appli-
cable standards.

6 EB 8310-6 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type3271 and Type3277 Pneumatic Actuators:
−Protective gloves when mounting or removing the actuator
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions, conversions or other modications to the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur-
thermore, the product may no longer meet the requirements for its intended use.
Safety devices
The Type3271 and Type3277 Actuators do not have any special safety equipment.
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 actuator by the process medium, the operating
pressure, the signal pressure or by moving parts by taking appropriate precautions. They
must observe all hazard statements, warning and caution notes in these mounting and oper-
ating instructions, especially for installation, start-up, and service work.
Responsibilities of the operator
The operator is responsible for proper operation 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, the operator must ensure that operating personnel or third persons are not ex-
posed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
well as the referenced documents and observe the hazard statements, warning and caution
notes specied in them. Furthermore, the operating personnel must be familiar with the ap-
plicable health, safety and accident prevention regulations and comply with them.

EB 8310-6 EN 7
Safety instructions and measures
Referenced standards and regulations
According to the ignition risk assessment performed in accordance with EN13463-1:2009,
section 5.2, the non-electrical actuators do not have their own potential ignition source even
in the rare incident of an operating fault. As a result, they do not fall within the scope of Di-
rective 2014/34/EU.
ÎFor connection to the equipotential bonding system, observe the requirements specied in
section 6.4 of EN60079-14 (VDE0165 Part 1).
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
−Mounting and operating instructions for the mounted valve
−Mounting and operating instructions for mounted valve accessories (positioner, solenoid
valve etc.)
−Safety Manual uSH8310 for use in safety-instrumented systems
−uAB0100 for tools, tightening torques, and lubricant
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in the actuator.
Actuators are pressurized. Improper opening can lead to actuator components burst-
ing.
ÎBefore starting any work on the actuator, depressurize all plant sections concerned
and the actuator.

8 EB 8310-6 EN
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts.
The actuator contains moving parts (actuator stem), which can injure hands or ngers if
inserted into the actuator.
ÎDo not insert hands or ngers into the yoke while the valve is in operation.
ÎWhile working on the actuator, disconnect and lock the pneumatic air supply as well
as the control signal.
Risk of personal injury when the actuator vents.
While the valve is operating, the actuator may vent during closed-loop control or when
the valve opens or closes.
ÎInstall the control valve in such a way that the actuator does not vent at eye level.
ÎUse suitable silencers and vent plugs.
ÎWear eye protection when working in close proximity to the control valve.
Risk of personal injury due to preloaded springs.
Actuators with preloaded springs are under tension. They can be identied by the long
bolts protruding from the bottom of the actuator.
ÎBefore starting any work on the actuator, relieve the compression from the preload-
ed springs (see section9.3).
Damage to health relating to the REACH regulation.
If a SAMSON 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 indicat-
ed on the SAMSON delivery note.
ÎInformation on safe use of the part affected, see uhttp://www.samson.de/reach-
en.html.

EB 8310-6 EN 9
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of actuator damage due to incorrectly attached slings.
ÎDo not attach load-bearing slings to the handwheel or travel stop.
Risk of actuator damage due to excessively high or low tightening torques.
Observe the specied torques on tightening actuator components. Excessively tightened
torques lead to parts wearing out quicker. Parts that are not tightened far enough may
loosen.
ÎObserve the specied tightening torques (uAB0100).
Risk of actuator damage due to the use of unsuitable tools.
Certain tools are required to work on the actuator.
ÎOnly use tools approved by SAMSON (uAB0100).
Risk of actuator damage due to the use of unsuitable lubricants.
The lubricants to be used depend on the actuator material. Unsuitable lubricants may
corrode and damage the valve surface.
ÎOnly use lubricants approved by SAMSON (uAB0100).

10 EB 8310-6 EN
Markings on the device
2 Markings on the device
2.1 Actuator nameplate
The nameplate is stuck on the diaphragm casing. It includes all details required to identify the
device:
2Conguration ID
3Serial number
4 Actuator area
5Bench range in bar
6Bench range in psi
7Operating travel in mm
8Operating range in bar
9Operating range in psi
10 Permissible supply pressure pmax in bar
11 Permissible supply pressure pmax in psi
12 Symbol indicating fail-safe action
Actuator stem extends (FA)
Actuator stem retracts (FE)
Manual override
14 Connecting thread
15 Diaphragm material
16 Date of manufacture
7
4
14
15 12 6
5
8
9
10 11
SAMSON 3271
Made in Germany
Var-ID
3
2
Serial no.
16
Fig.1: Nameplate of Type3271 Actuator