Samson 3275 Service manual

Mounting and
Operating Instructions
EB 8314 EN
Translation of original instructions
Edition February 2017
Type 3275 Pneumatic Piston Actuator
Actuator area: 314, 490, and 804cm²

2 EB 8314 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.
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

Contents
EB 8314 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................7
1.2 Notes on possible personal injury ...................................................................7
1.3 Notes on possible property damage ................................................................8
2 Markings on the device .................................................................................9
2.1 Actuator nameplate ........................................................................................9
3 Design and principle of operation ................................................................10
3.1 Fail-safe action ............................................................................................11
3.2 Versions ......................................................................................................12
3.3 Technical data .............................................................................................12
4 Measures for preparation............................................................................14
4.1 Unpacking ..................................................................................................14
4.2 Transporting and lifting ................................................................................14
4.2.1 Transporting ................................................................................................14
4.2.2 Lifting ..........................................................................................................15
4.3 Storage .......................................................................................................15
4.4 Preparation for installation ............................................................................17
5 Mounting and start-up.................................................................................18
5.1 Mounting the actuator onto the valve .............................................................18
5.2 Additional ttings .........................................................................................20
6 Operation...................................................................................................21
7 Servicing.....................................................................................................22
7.1 Replacing parts subject to wear .....................................................................22
7.2 Leak-testing the actuator ...............................................................................27
7.3 Preparation for return shipment .....................................................................27
7.4 Ordering spare parts and operating supplies .................................................27
8 Malfunctions ...............................................................................................28
9 Decommissioning and disassembly ..............................................................30
9.1 Decommissioning .........................................................................................30
9.2 Removing the actuator from the valve ............................................................30
9.3 Disposal ......................................................................................................30

4 EB 8314 EN
Contents
10 Appendix....................................................................................................31
10.1 After-sales service ........................................................................................31

EB 8314 EN 5
Safety instructions and measures
1 Safety instructions and measures
Intended use
The Type3275 Pneumatic Piston Actuator is designed for operating a mounted globe valve.
In combination with the valve, the actuator is used to shut off and control the ow of liquids,
gases or vapors in the pipeline. The actuator is mainly used in combination with PSA valves
(e.g. SAMSON Type3241-PSA Valve).
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 applications 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, 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 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 8314 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type3275 Pneumatic Piston Actuator:
−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3275 Actuator does 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 actuators 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.
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.

EB 8314 EN 7
Safety instructions and measures
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.)
−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.
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts.
The actuator contains moving parts (piston rod), 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.

8 EB 8314 EN
Safety instructions and measures
WARNING
!
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.
1.3 Notes on possible property damage
NOTICE
!
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 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).

EB 8314 EN 9
Markings on the device
2 Markings on the device
2.1 Actuator nameplate
The nameplate (A18) is attached to the base (A4) with rivets (A19). It includes all details re-
quired to identify the device:
1 Actuator area
2 Permissible supply pressure pmax in bar or psi
3Operating travel in mm
4Permissible temperature range
5Conguration ID
6 Serial number
7Bar code
8Date of manufacture (month and year)
A18
A19
A4
1
2
8
SAMSON 3275
7
8
Made in
Germany
Var-ID 6
3
Serial no.
4
5
Supply
Stroke
Temperature
A4 Base
A18 Nameplate
A19 Rivet
Fig.1: Nameplate of Type3275 Actuator

10 EB 8314 EN
Design and principle of operation
3 Design and principle of oper-
ation
The double-acting Type3275 Pneumatic
Piston Actuator with 314, 490, and 804cm²
actuator areas is mainly mounted on PSA
valves (e.g. Type3241-PSA).
The actuator mainly consists of the base
(A4), cover (A10), and piston (A9). The stem
connector clamps connect the actuator's pis-
ton rod (A1) with the plug stem of the globe
valve.
The signal pressure pst creates the force
F=pst·A at the piston surface A, which is
opposed by the corresponding counter-
pressure. The piston is pressurized with the
supply air over the two connections (S, G
3
/
8
or G½).
The actuators with 314 and 490cm²
actuator areas are xed to a yoke, which is
designed to accommodate a pneumatic or
electropneumatic positioner. See Fig.2.
A1
A2
A7
A8
A9
A3
S
S
A10
A4
A5
A5
A1 Piston rod
A2 Piston rod seal
A3 Plain bearing
A4 Base
A5 O-ring
A7 Piston seal
A8 Piston guide band
A9 Piston
A10 Cover
S Signal pressure connection
Yoke
Fig.2: Type3275 Actuator (314 and 490cm²)