Samson 3271, Монтаж и эксплуатация, Страница: 3 / 36

Contents
EB 8310-8 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 ...............................................................................10
2.1 Actuator nameplate ...................................................................................... 10
3 Design and principle of operation ................................................................12
3.1 Direction of action ........................................................................................ 12
3.2 Signal pressure routing ................................................................................. 12
3.3 Fail-safe action ............................................................................................ 12
3.3.1 Version with direction of action "actuator stem extends" (FA) ........................... 12
3.3.2 Version with direction of action "actuator stem retracts" (FE) ............................ 14
3.4 Technical data ............................................................................................. 14
4 Measures for preparation ............................................................................16
4.1 Unpacking .................................................................................................. 16
4.2 Transporting and lifting ................................................................................ 16
4.2.1 Transporting ................................................................................................ 17
4.2.2 Lifting .......................................................................................................... 17
4.3 Storage ....................................................................................................... 18
4.4 Preparation for installation ............................................................................ 19
5 Mounting and start-up .................................................................................20
5.1 Mounting the actuator onto the valve ............................................................. 20
5.2 Preloading the springs .................................................................................. 22
5.2.1 Tensioning the springs .................................................................................. 22
5.2.2 Increasing the actuator thrust ........................................................................ 22
5.2.3 Adapting the travel range ............................................................................. 24
5.3 Additional fittings ......................................................................................... 24
6 Operation ...................................................................................................25
6.1 Throttling service .......................................................................................... 25
6.2 On/off service ............................................................................................. 25
6.3 Reversal of the direction of action .................................................................. 25