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Contents

EB 8052 EN

1 Safety instructions and measures ................................................................1-1

1.1 Notes on possible severe personal injury ......................................................1-6

1.2 Notes on possible personal injury ................................................................1-6

1.3 Notes on possible property damage .............................................................1-8

1.4 Notes on the use of an RFID tag .................................................................1-10

1.5 Warnings on the device .............................................................................1-10

2 Markings on the device ..............................................................................2-1

2.1 Valve nameplate .........................................................................................2-1

2.2 Actuator nameplate .....................................................................................2-2

2.3 Material identication number .....................................................................2-2

2.4 Label when an adjustable packing is installed ...............................................2-3

2.5 Optional RFID tag .......................................................................................2-3

3 Design and principle of operation ...............................................................3-1

3.1 Versions .....................................................................................................3-3

3.2 Additional ttings ........................................................................................3-3

3.3 Valve accessories ........................................................................................3-4

3.4 Technical data ............................................................................................3-4

4 Shipment and on-site transport ...................................................................4-1

4.1 Accepting the delivered goods .....................................................................4-1

4.2 Removing the packaging from the valve ........................................................4-1

4.3 Transporting and lifting the valve ..................................................................4-1

4.3.1 Transporting the valve .................................................................................4-2

4.3.2 Lifting the valve ...........................................................................................4-3

4.4 Storing the valve .........................................................................................4-5

5 Installation .................................................................................................5-1

5.1 Installation conditions ..................................................................................5-1

5.2 Preparation for installation ...........................................................................5-3

5.3 Mounting the device ....................................................................................5-4

5.3.1 Mounting the external anti-rotation xture .....................................................5-4

5.3.2 Mounting the actuator onto the valve ..........................................................5-14

5.3.3 Installing the valve into the pipeline ............................................................5-16

5.4 Testing the installed valve ...........................................................................5-17

5.4.1 Leakage ...................................................................................................5-18

5.4.2 Travel motion ............................................................................................5-18

5.4.3 Fail-safe position .......................................................................................5-19

5.4.4 Pressure test ..............................................................................................5-19

Samson 3251 User Manual

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