Samson EB 8315 EN User manual

Translation of original instructions
EB 8315 EN
Edition September 2022
Type3379 Pneumatic 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 8315 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 8315 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.............................................................1-5
1.4 Warnings on the device...............................................................................1-6
2 Markings on the device ..............................................................................2-1
2.1 Actuator housing inscription ........................................................................2-1
3 Design and principle of operation ...............................................................3-1
3.1 Direction of action.......................................................................................3-2
3.2 Fail-safe action ...........................................................................................3-2
3.3 Versions .....................................................................................................3-2
3.4 Accessories ................................................................................................3-2
3.5 Technical data ............................................................................................3-2
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the device ......................................................4-1
4.3 Transporting and lifting the actuator .............................................................4-1
4.4 Storing the actuator.....................................................................................4-1
5 Installation.................................................................................................5-1
5.1 Preparation for installation...........................................................................5-1
5.2 Mounting the device....................................................................................5-1
6 Start-up .....................................................................................................6-1
6.1 Pneumatic connection..................................................................................6-1
6.2 Electrical connection....................................................................................6-1
6.3 Aligning the actuator (T1 version only) .........................................................6-2
7 Operation..................................................................................................7-1
7.1 Note on operation ......................................................................................7-1
8 Malfunctions ..............................................................................................8-1
8.1 Troubleshooting ..........................................................................................8-1
8.2 Emergency action .......................................................................................8-1
9 Servicing and conversion............................................................................9-1
9.1 Periodic testing ...........................................................................................9-2
9.2 Preparation for servicing or conversion work.................................................9-2
9.3 Exchanging the actuator bonnet...................................................................9-2
9.3.1 Removing the cover.....................................................................................9-2
9.3.2 Removing the Type 4740 Limit Switch ...........................................................9-2

Contents
EB 8315 EN
9.3.3 Removing the Type 3724 Positioner ..............................................................9-2
9.3.4 Mounting the bonnet ...................................................................................9-2
9.4 Ordering spare parts and operating supplies ................................................9-4
10 Decommissioning .....................................................................................10-1
11 Removal ..................................................................................................11-1
11.1 Removing the actuator from the valve .........................................................11-1
12 Repairs ....................................................................................................12-1
12.1 Returning devices to SAMSON ..................................................................12-1
13 Disposal...................................................................................................13-1
14 Annex......................................................................................................14-1
14.1 After-sales service.....................................................................................14-1

EB 8315 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
The Type3379 Pneumatic Actuator with spring-return mechanism is used in conjunction with
a valve as a control unit suitable for the food and pharmaceutical industries. In combination
with the valve, the actuator is used to shut off the ow of liquids, gases or vapors in the pipe-
line. Depending on the version, the actuator is suitable for throttling or on/off service.
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 operating conditions that
meet the specications used for sizing the actuators at the ordering stage. In case operators
intend to use the actuators in applications or conditions other than those 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 8315 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type3379 Pneumatic 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3379 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 8315 EN 1-3
Safety instructions and measures
Referenced standards, directives and regulations
According to the ignition hazard 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).
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.)

1-4 EB 8315 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 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.
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.
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 8315 EN 1-5
Safety instructions and measures
WARNING
!
Risk of personal injury due to preloaded springs.
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.
ÎOnly perform the activities described in these mounting and operating instructions.
ÎDo not open the actuator housing.
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.
1.3 Notes on possible property damage
NOTICE
!
Risk of actuator damage due to incorrectly attached slings.
ÎDo not attach load-bearing slings to the mounting parts of the actuator.
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.

1-6 EB 8315 EN
Safety instructions and measures
NOTICE
!
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
symbols 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. In-
correct opening of the actuator can lead to personal in-
jury through the sudden and uncontrolled projection of
parts. Do not remove the actuator.

EB 8315 EN 2-1
Markings on the device
2 Markings on the device
2.1 Actuator housing
inscription
The details on the device version are lasered
onto actuator housing underneath the
exhaust port. No nameplate is used. The
inscription includes all details required to
identify the device:
Item Inscription meaning
1 Type number
2Material conguration number
Country of origin
3 Serial number
4 Bench range in bar/psi
Rated travel in mm
5 Operating range in bar/psi
Operating travel in mm
(only when different from bench range/
rated travel)
6 Max. permissible supply pressure pmax in
bar/psi
7 Actuator area
8 Fail-safe action
Actuator stem
extends (FA)
Actuator stem
retracts (FE)
9 Country of origin · Year of manufacture
10 Thread size
11 Warning (see the 'Warnings on the de-
vice' section)
12 Data Matrix code
1
2
3
4
5
6
8
7
9
10
1
1
12
Fig.2-1: Housing inscription on Type3379
Actuator

2-2 EB 8315 EN

EB 8315 EN 3-1
Design and principle of operation
3 Design and principle of operation
The Type3379 Pneumatic Actuators with
spring-return mechanism are used in con-
junction with a valve as a control unit suit-
able for the food and pharmaceutical indus-
tries.
The signal pressure pst creates a force on the
piston surface (5) which is counteracted by
the spring(s) (4). The bench range is deter-
mined by the number of springs used and
their compression, taking into account the
rated travel.
The actuators are designed for a maximum
travel of 15mm. A spring compression is
only possible with smaller travels.
The travel H is proportional to the signal
pressure pst. The direction of action of the ac-
tuator stem depends on how the springs are
installed in the actuator.
The supply air is connected for both operat-
ing directions to the top connecting plate.
10
9
8
3
31 1
5
2
4
7
6
10
9
8
3
1
5
2
4
7
6
1 Pressure connection to control the
actuator
2 Piston seal
3 Vent plug
4 Spring(s)
5 Piston
6 Base
7 Actuator stem
8 Cover
9 Position indicator (valve OPEN/
CLOSED)
10 Dome (visual indicator)
Actuator stem
retracts (fail-open)
Actuator stem
extends (fail-close)
Actuator stem
extends (fail-close)
Fig.3-1: Sectional drawings of Type3379

3-2 EB 8315 EN
Design and principle of operation
The connection between the actuator stem
and the valve's plug stem differs depending
on the valve used. Refer to the mounting and
operating instructions of the corresponding
valve for more details.
3.1 Direction of action
The direction of action is determined by how
the springs are arranged in the actuator and
its internal design.
− Actuator stem retracts (FE)
− Actuator stem extends (FA)
It is not possible to reverse the operating di-
rection.
3.2 Fail-safe action
Depending on the operating direction of the
actuator, the actuator has different fail-safe
actions that become effective when the sup-
ply air fails.
Actuator stem extends
When the air supply fails, the spring force
moves the stem downwards to the end posi-
tion causing the globe valve on which the
actuator is mounted to close. The valve
opens when the signal pressure is increased
enough to overcome the spring force.
Actuator stem retracts
When the air supply fails, the spring force
moves the stem upwards causing the globe
valve on which the actuator is mounted to
open. The valve closes when the signal pres-
sure is increased enough to overcome the
spring force.
3.3 Versions
− Type 3379-00: Type3379 Actuator
combined with Type3724 Electropneu-
matic Positioner (uEB8395)
− Type3379-01: Type3379 Actuator for
on/off service
− Type 3379-02: Type 3379 Actuator
combined with Type4740 Electric Limit
Switch (uEB8357)
3.4 Accessories
Vent plugs
Vent plugs are screwed into the exhaust air
ports of pneumatic and electropneumatic de-
vices. They ensure that any exhaust air that
forms can be vented to the atmosphere (to
avoid excess pressure in the device). Further-
more, the vent plugs allow air intake to pre-
vent a vacuum from forming in the device.
uAB07
3.5 Technical data
The housing inscription provides information
on the actuator version (see the 'Markings
on the device' section).
More information is available in the follow-
ing valve data sheets:
− Type3347: uT8097
− Type3349: uT8048-2 and uT8048-22
− Type3321CT: uT8115
Note
Note

EB 8315 EN 3-3
Design and principle of operation
Table 3-1: General data
Piston diameter mm 63 90 150
in 2.48 3.54 5.91
Actuator area cm² 31 63 176
in² 4.8 9.8 27.3
Rated travel mm 15
in 0.59
Permissible ambient
temperature
°C 0 to +60
°F +32 to +140
Max. supply pressure bar 8
psi 116
Table 3-2: Fail-close version
Piston diameter mm 63 90 150
in 2.48 3.54 5.91
Actuator area cm² 31 63 176
in² 4.8 9.8 27.3
No. of springs 1 1 2 3 4 6
Control pressure bar 4 4.5 6 4 4 4.5
psi 58 65 87 58 58 65
Nominal range bar 2.3 to 3.7 2.5 to 4.0 3.3 to 5.6 1.0 to 2.3 1.4 to 3.0 2.1 to 4.6
psi 33 to 54 36 to 58 48 to 81 14.5 to 33 20 to 43.5 30.5 to 67
Travel mm 15
in 0.59
Thrust N 710 1510 2330 1760 2280 3690
lbf 160 340 524 396 512 830

3-4 EB 8315 EN
Design and principle of operation
Table 3-3: Fail-open version
Piston diameter mm 63 90 150
in 2.48 3.54 5.91
Actuator area cm² 31 63 176
in² 4.8 9.8 27.3
No. of springs 1 1 2 3 3
Control pressure bar 6 4 6 4 6
psi 87 58 87 58 87
Nominal range bar 2.3 to 3.7 1.0 to 1.9 1.0 to 2.3
psi 33 to 54 14.5 to 28 14.5 to 33
Travel mm 15
in 0.59
Thrust N 680 1320 2580 2990 6500
lbf 153 297 580 672 1461
Table 3-4: Materials
Component Material
Housing and cover Stainless steel 1.4409 · A351CF3M
Actuator stem Stainless steel 1.4404 · A182F316L
Piston Glass-ber-reinforced polyamide
Stainless steel 1.4409 · A351CF3M1)
Dome (visual indicator) Polycarbonate
Bearing Polymer
Springs Spring steel
Seals NBR
1) For Ø150 piston

EB 8315 EN 3-5
Design and principle of operation
Table 3-5: Weight
Piston diameter mm 63 90 150
in 2.48 3.54 5.91
Weight, approx. kg 1.8 3.1 8.9
lb 4 6.8 19.6
Dimensions in mm (inch)
Ø 69 (2.72)
30 (1.18) 35 (1.38)
53.5 (2.11)
193 (7.6)
Ø94 (3.7)
35 (1.38)
193 (7.6)
67 (2.64)
30 (1.18)
Ø 45 (1.77)
Ø 45 (1.77)
Ø90mm actuator sizeØ63mm actuator size
Fig.3-2: Dimensional diagram of Type3379-01 Actuator

3-6 EB 8315 EN
Design and principle of operation
Dimensions in mm (inch)
Ø160 (6,29)Ø160 (6,29)
Ø45 (1,77)
40 (1,57)
Ø109 (4,29)
26 (1,02)
306 (1,04)
129 (5,07)
35 (1,38)
215 (8,46)
40 (1,57)
Ø45 (1,77)
67 (2,64)
Ø150mm actuator size
Fig.3-3: Dimensional drawing of Type3379-01 Actuator (left) and Type3379-00 Actuator (right)

EB 8315 EN 3-7
Design and principle of operation
Dimensions in mm (inch)
285 (11.22)
135 (5.31)
Ø108 (4.25)
Ø69/94 (2.72/3.7)
130 (5.12)
Fig.3-4: Dimensional drawing of Type3379-00 Actuator

3-8 EB 8315 EN
Design and principle of operation
Dimensions in mm (inch)
300 (11.8)
142 (5.6)
Ø45 (1.77)
30 (1.18)
Ø69/94 (2.72/3.7)
Fig.3-5: Dimensional drawing of Type3379-02 Actuator