Samson 3271-5 Service manual
Mounting and
Operating Instructions
EB 8310-1 EN
Translation of original instructions
Edition April 2016
Type 3271 Pneumatic Actuator Type 3277 Pneumatic Actuator
Pneumatic Actuators
Type3271‑5 (120cm²)
Type3277‑5 (120cm²)
2 EB 8310-1 EN
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
(www.samson.de) > Product documentation. You can enter the document
number or type number in the [Find:] eld to look for a document.
Denition 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
Contents
EB 8310-1 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................8
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 ................................................................12
3.1 Direction of action and signal pressure routing ...............................................14
3.2 Fail-safe action ............................................................................................14
3.3 Versions ......................................................................................................15
3.4 Technical data .............................................................................................16
4 Preparation.................................................................................................20
4.1 Unpacking ..................................................................................................20
4.2 Transporting and lifting ................................................................................20
4.2.1 Transporting ................................................................................................20
4.2.2 Lifting..........................................................................................................20
4.3 Storage.......................................................................................................21
4.4 Preparation for installation............................................................................22
5 Mounting and start-up.................................................................................24
5.1 Mounting the actuator onto the valve.............................................................24
5.1.1 Mounting onto Series240 Valves ..................................................................24
5.1.2 Mounting onto Type3510 Micro-ow Valve...................................................27
5.2 Connecting the signal pressure......................................................................28
5.2.1 Type3271-5 ...............................................................................................28
5.2.2 Type3277-5 ...............................................................................................29
5.3 Adapting the travel range.............................................................................29
5.4 Additional ttings.........................................................................................30
6 Operation...................................................................................................31
6.1 Throttling service..........................................................................................31
6.2 On/off service.............................................................................................31
4 EB 8310-1 EN
Contents
6.3 Reversal of the direction of action..................................................................32
6.3.1 Reversal of the direction of action from stem extends to stem retracts ................32
6.3.2 Reversal of the direction of action from stem retracts to stem extends ................34
6.4 Travel stop...................................................................................................36
6.4.1 Bottom travel stop (minimum travel) ...............................................................36
6.4.2 Top travel stop (maximum travel) ...................................................................36
6.5 Version with handwheel................................................................................36
6.5.1 Extending the actuator stem manually............................................................36
6.5.2 Retracting the actuator stem manually............................................................36
7 Maintenance ...............................................................................................38
7.1 Replacing the diaphragm .............................................................................40
7.2 Replacing the actuator stem seals ..................................................................41
7.3 Determining dimensiona..............................................................................42
7.4 Preparation for return shipment.....................................................................43
7.5 Ordering spare parts and operating supplies .................................................43
8 Malfunctions ...............................................................................................44
9 Decommissioning and disassembly ..............................................................46
9.1 Decommissioning.........................................................................................46
9.2 Removing the actuator from the valve ............................................................46
9.2.1 Series240 Valves ........................................................................................46
9.2.2 Type3510 Micro-ow Valve .........................................................................46
9.3 Disposal......................................................................................................47
10 Appendix....................................................................................................48
10.1 After-sales service........................................................................................48
10.2 Spare parts .................................................................................................48
EB 8310-1 EN 5
Safety instructions and measures
1 Safety instructions and measures
Intended use
The SAMSON Type3271 and Type3277 Actuators are designed for operating a mounted
globe valve. In combination with the valve, the actuator is used to shut off the ow of liquids,
gases or vapors in the pipeline. Depending on the version, the actuator is suitable for
throttling or on/off service. The actuator can be used in processing and industrial plants.
The actuator is designed to operate under exactly dened conditions (e.g. thrust, travel).
Therefore, operators must ensure that the actuator is only used in applications that meet the
specications used for sizing the actuator at the ordering stage. In case operators intend to
use the actuator in other applications or conditions than specied, SAMSON must be con-
tacted.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice 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 dened during sizing and in the technical data
−Use outside the limits dened 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
Qualications 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 8310-1 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type3271 and Type3277 Pneumatic Actuators:
−Protective gloves when mounting or removing the actuator
More information on the safe handling of the diaphragms installed in the pneumatic actua-
tors is available in uhttp://www.samson.de/reach-en.html.
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions, conversions or other modications 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 Type3271 and Type3277 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 maintenance.
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 to the operating
personnel and to instruct them in proper operation. Furthermore, operators must ensure that
operating personnel or third persons are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
well as the specied hazard statements, warning, and caution notes. Furthermore, the oper-
ating personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Note
EB 8310-1 EN 7
Safety instructions and measures
Referenced standards and regulations
According to the ignition risk assessment performed in accordance with EN13463-1:2009,
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 94/9/EC.
ÎFor connection to the equipotential bonding system, observe the requirements specied in
section 6.3 of EN60079-14:2014-10 (VDE0165 Part 1).
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
−Mounting and operating instructions for mounted valve
−Mounting and operating instructions for mounted valve accessories (positioner, solenoid
valve etc.)
−uAB0100 for tools and lubricant
8 EB 8310-1 EN
Safety instructions and measures
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.
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 nger 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.
EB 8310-1 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 specied 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 specied tightening torques (uAB0100).
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 (uAB0100).
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 (uAB0100).
10 EB 8310-1 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 actuator:
2Conguration ID
3 Serial no.
4 Actuator area
5 Bench range in bar
6 Bench range in psi
7 Operating travel in mm
8 Operating range in bar
9 Operating 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)
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 Type3271 Actuator
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