Samson 3277-5 Service manual

Translation of original instructions
EB 8310-1 EN
Type3271-5 (120cm²)
Type3277-5 (120cm²)
Pneumatic Actuators
Type 3271 Pneumatic Actuator Type 3277 Pneumatic Actuator
Edition November 2022

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
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. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
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
([e-mail]).
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.

Contents
EB 8310-1 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-4
1.2 Notes on possible personal injury ................................................................1-4
1.3 Notes on possible property damage.............................................................1-6
1.4 Warnings on the device...............................................................................1-6
2 Markings on the device ..............................................................................2-1
2.1 Actuator nameplate.....................................................................................2-1
3 Design and principle of operation ...............................................................3-1
3.1 Direction of action and signal pressure routing ..............................................3-3
3.2 Fail-safe action ...........................................................................................3-3
3.2.1 Actuator stem extends .................................................................................3-3
3.2.2 Actuator stem retracts..................................................................................3-4
3.3 Accessories ................................................................................................3-4
3.4 Versions .....................................................................................................3-5
3.5 Technical data ............................................................................................3-5
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the actuator ...................................................4-1
4.3 Transporting and lifting the actuator .............................................................4-1
4.3.1 Transporting the actuator.............................................................................4-2
4.3.2 Lifting the actuator ......................................................................................4-2
4.4 Storing the actuator.....................................................................................4-2
5 Installation.................................................................................................5-1
5.1 Preparation for installation...........................................................................5-1
5.2 Mounting the device....................................................................................5-1
5.2.1 Mounting the actuator onto the valve............................................................5-2
5.2.2 Pneumatic connection..................................................................................5-7
6 Start-up .....................................................................................................6-1
6.1 Adapting the travel range............................................................................6-2
6.2 Travel stop..................................................................................................6-3
6.2.1 Bottom travel stop (minimum travel) ..............................................................6-3
6.2.2 Top travel stop (maximum travel) ..................................................................6-3
6.3 Version with handwheel...............................................................................6-3
6.3.1 Extending the actuator stem manually...........................................................6-4
6.3.2 Retracting the actuator stem manually...........................................................6-4

Contents
EB 8310-1 EN
7 Operation..................................................................................................7-1
7.1 Throttling service.........................................................................................7-1
7.2 On/off service............................................................................................7-1
7.3 Manual mode (versions with handwheel only) ...............................................7-2
7.4 Additional notes concerning operation .........................................................7-2
8 Malfunctions ..............................................................................................8-1
8.1 Troubleshooting ..........................................................................................8-1
8.2 Emergency action .......................................................................................8-2
9 Servicing and conversion............................................................................9-1
9.1 Periodic testing ...........................................................................................9-2
9.2 Preparation for servicing or conversion work.................................................9-2
9.3 Mounting the actuator on the valve after service or conversion work ...............9-3
9.4 Service work...............................................................................................9-3
9.4.1 Replacing the diaphragm ............................................................................9-3
9.4.2 Replacing the actuator stem seals .................................................................9-5
9.5 Conversion work.........................................................................................9-7
9.5.1 Reversing the direction of action (fail-safe action) ..........................................9-7
9.6 Determiningdimensiona.............................................................................9-9
9.7 Ordering spare parts and operating supplies ................................................9-9
10 Decommissioning .....................................................................................10-1
11 Removal ..................................................................................................11-1
11.1 Removing the actuator from the valve .........................................................11-2
11.2 Relieving the spring compression in the actuator..........................................11-4
12 Repairs ....................................................................................................12-1
12.1 Returning devices to SAMSON ..................................................................12-1
13 Disposal...................................................................................................13-1
14 Certicates...............................................................................................14-1
15 Annex......................................................................................................15-1
15.1 Tightening torques, lubricants and tools ......................................................15-1
15.2 Spare parts ..............................................................................................15-1
15.3 After-sales service.....................................................................................15-4

EB 8310-1 EN 1-1
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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 throt-
tling or on/off service. The actuator can be used in processing and industrial plants.
Theactuatorisdesignedtooperateunderexactlydenedconditions(e.g.thrust,travel).
Therefore, operators must ensure that the actuator is only used in operating conditions that
meetthespecicationsusedforsizingtheactuatorattheorderingstage.Incaseoperators
intendtousetheactuator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 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denedduringsizingandbythetechnicaldata
− Useoutsidethelimitsdenedbytheaccessoriesconnectedto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
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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totheirspe-
cializedtraining,theirknowledgeandexperienceaswellastheirknowledgeoftheapplica-
ble standards.

1-2 EB 8310-1 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 and safety footwear when mounting or removing the actuator
− Eye protection and hearing protection while the actuator is operating.
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions,conversionsorothermodications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.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signalpressure,storedspring
energy 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. Opera-
tors are obliged to provide these mounting and operating instructions as well as the refer-
enced documents to the operating personnel and to instruct them in proper operation. Fur-
thermore, operators must ensure that operating personnel or third parties 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referenceddocumentsandobservethespeciedhazardstatements,warnings
and caution notes. Furthermore, operating personnel must be familiar with the applicable
health, safety and accident prevention regulations and comply with them.

EB 8310-1 EN 1-3
Safety instructions and measures
Referenced standards, directives and regulations
AccordingtotheignitionriskassessmentperformedinaccordancewithClause5.2of
ISO80079-36,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
Directive 2014/34/EU.
ÎForconnectiontotheequipotentialbondingsystem,observetherequirementsspeciedin
Clause6.4ofEN60079-14(VDE0165-1).
TheType3271andType3277Actuatorsarepartlycompletedmachineryasdenedinthe
Machinery Directive 2006/42/EC or the Directive 2008 No. 1597 Supply of Machinery
(Safety) Regulations 2008.
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
− Mounting and operating instructions for the valve on which it is mounted
− 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

1-4 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affected
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touchtheactuatorstemorinserthandsorngerintotheyokeorbeneaththe
actuator stem while the air supply is connected to the actuator.
ÎWhile working on the actuator, disconnect and lock the pneumatic air supply as well
as the control signal.
ÎDo not impede the movement of the actuator stem by inserting objects into the yoke.
ÎBeforeunblockingtheactuatorstemafterithasbecomeblocked(e.g.duetoseizing
up after remaining in the same position for a long time), release any stored energy
in the actuator (e.g. spring compression). See 'Relieving the spring compression in
the actuator' in the 'Removal' section.
1) If not described otherwise in the valve documentation, the work position for the control valve is the
front view looking onto the operating controls (including valve accessories).

EB 8310-1 EN 1-5
Safety instructions and measures
WARNING
!
Risk of personal injury when the actuator vents.
The actuator is operated with air. As a result, air is vented during operation.
ÎInstall the control valve in such a way that vent openings are not located at eye level
and the actuator does not vent at eye level in the work position 1).
ÎUse suitable silencers and vent plugs.
ÎWear eye and hearing protection when working near the actuator.
Risk of personal injury due to preloaded springs.
Actuatorswithpreloadedspringsareundertension.Theseactuatorscanbeidentied
by several longer bolts with nuts protruding from the bottom diaphragm case. These
bolts allow the spring compression to be relieved evenly on disassembling the actuator.
Actuators with considerably preloaded springs are also labeled correspondingly (see
the 'Markings on the device' section).
ÎBefore starting any work on the actuator, relieve the compression from the preload-
ed springs. See 'Relieving the spring compression in the actuator' in the 'Removal'
section.
Risk of personal injury through incorrect operation, use or installation as a result of
information on the actuator being illegible.
Over time, markings, labels and nameplates on the actuator may become covered with
dirtorbecomeillegibleinsomeotherway.Asaresult,hazardsmaygounnoticedand
the necessary instructions not followed. There is a risk of personal injury.
ÎKeep all relevant markings and inscriptions on the device in a constantly legible
state.
ÎImmediately renew damaged, missing or incorrect nameplates or labels.

1-6 EB 8310-1 EN
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whentighteningactuatorcomponents.Excessivetighten-
ing torques lead to parts wearing out more quickly. 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 surfaces.
ÎOnly use lubricants approved by SAMSON (uAB0100).
1.4 Warnings on the device
Warning Meaning of the warning Location on the device
Warning to indicate that the springs in the
actuator are preloaded.
Actuators with preloaded springs are under
tension. Incorrect opening of the actuator can lead
to personal injury through the sudden and
uncontrolled projection of parts.
Before starting any work on the actuator, relieve
the compression from the preloaded springs. See
'Relieving the spring compression in the actuator'
in the 'Removal' section.