Samson 3278 Setup guide

Translation of original instructions
EB 8321 EN
Edition January 2021
Type3278 Pneumatic Rotary Actuator
Actuator area: 160 and 320cm²
Type3278 Pneumatic Rotary Actuator

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 8321 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 8321 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-3
1.2 Notes on possible personal injury ................................................................1-4
1.3 Notes on possible property damage.............................................................1-5
1.4 Warnings on the device...............................................................................1-5
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.......................................................................................3-1
3.2 Signal pressure routing................................................................................3-1
3.3 Fail-safe action ...........................................................................................3-1
3.4 Versions .....................................................................................................3-3
3.5 Accessories ................................................................................................3-3
3.6 Technical data ............................................................................................3-3
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.....................................................................................4-3
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 Signal pressure connection ..........................................................................5-2
5.2.3 Adjusting the stop bolts ...............................................................................5-2
6 Operation..................................................................................................6-1
6.1 Throttling service.........................................................................................6-1
6.2 Manual mode (versions with handwheel only) ...............................................6-1
7 Malfunctions ..............................................................................................7-1
7.1 Troubleshooting ..........................................................................................7-1
7.2 Emergency action .......................................................................................7-1

Contents
EB 8321 EN
8 Servicing and conversion............................................................................8-1
8.1 Periodic testing ...........................................................................................8-2
8.2 Preparation for servicing or conversion work.................................................8-2
8.3 Mounting the actuator on the valve after service or conversion work ...............8-2
8.4 Service work...............................................................................................8-2
8.4.1 Replacing the diaphragm ............................................................................8-2
8.5 Conversion work.........................................................................................8-3
8.5.1 Changing the fail-safe action/reversing the direction of action .......................8-3
8.5.2 Changing the bench range ..........................................................................8-3
8.6 Ordering spare parts and operating supplies ................................................8-4
9 Decommissioning .......................................................................................9-1
10 Removal ..................................................................................................10-1
10.1 Removing the actuator from the valve .........................................................10-1
10.2 Relieving the spring compression in the actuator..........................................10-1
11 Repairs ....................................................................................................11-1
11.1 Returning devices to SAMSON ..................................................................11-1
12 Disposal...................................................................................................12-1
13 Annex......................................................................................................13-1
13.1 Tightening torques.....................................................................................13-1
13.2 Spare parts ..............................................................................................13-1
13.3 After-sales service.....................................................................................13-3

EB 8321 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
The SAMSON Type3278 Actuator is mounted on buttery valves and other nal control ele-
ments with rotary closure members. In combination with the valve, the actuator is used to
shut off the ow of liquids, gases or vapors in the pipeline. The actuator is suitable for both
throttling and on/off service. The actuators can be used in processing and industrial plants.
The actuator is designed to operate under exactly dened conditions (e.g. thrust, opening
angle). Therefore, operators must ensure that the actuator is only used in operating condi-
tions 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, con-
tact 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 8321 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type3278 Pneumatic Rotary Actuator:
− 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3278 Actuator does not have any special safety features.
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 8321 EN 1-3
Safety instructions and measures
Referenced standards, directives 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0165-1).
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.)
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.

1-4 EB 8321 EN
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Risk of personal injury due to preloaded springs.
Actuators with preloaded springs are under tension.
ÎOnly open the actuator housing to safely relieve the energy of the spring compres-
sion following the instructions in this document. See 'Relieving the spring compres-
sion in the actuator' in the 'Removal' section.
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 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) 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 8321 EN 1-5
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 any other mounting parts.
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.
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.
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.
1.4 Warnings on the device
Warning Meaning of the warning Location on the device
Warning to indicate that the springs in the ac-
tuator 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, re-
lieve the compression from the preloaded
springs. See 'Relieving the spring compression
in the actuator' in the 'Removal' section.

1-6 EB 8321 EN