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

SAMSON 3275

Made in

Germany

Var-ID

Serial no.

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

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.

A10

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)

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