Table Of Contents - Samson 3371 Mounting And Operating Instructions

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 .............................................................1-6
1.4 Warnings on the device ...............................................................................1-6
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
3.2.1 120 cm² actuator area ................................................................................3-1
3.2.2 350 cm² actuator area ................................................................................3-1
3.3 Fail-safe action ...........................................................................................3-2
3.3.1 Actuator stem extends .................................................................................3-4
3.3.2 Actuator stem retracts ..................................................................................3-4
3.4 Mounting types ...........................................................................................3-4
3.5 Versions .....................................................................................................3-6
3.6 Accessories ................................................................................................3-6
3.7 Technical data ............................................................................................3-6
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 ............................................................5-3
5.3 Changing the mounting type ........................................................................5-5
5.3.1 Changing the mounting type to mounting using rods (form B to form C) ..........5-5
5.3.2 Changing the mounting type to mounting using a crossbeam
(form C to form B) .......................................................................................5-6
5.4 Pneumatic connection ..................................................................................5-6
EB 8317 EN
Contents