Samson 3321 - Default Chapter; Table of Contents

Contents
EB 8111/8112 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................7
1.2 Notes on possible personal injury ...................................................................8
1.3 Notes on possible property damage ................................................................9
2 Markings on the control valve ......................................................................12
2.1 Valve nameplate ..........................................................................................12
2.2 Actuator nameplate ......................................................................................13
2.3 Material number ..........................................................................................13
3 Design and principle of operation ................................................................14
3.1 Fail-safe positions ........................................................................................16
3.2 Mounting types ............................................................................................16
3.3 Technical data .............................................................................................18
4 Measures ....................................................................................................22
4.1 Unpacking ..................................................................................................22
4.2 Transporting and lifting ................................................................................22
4.2.1 Transporting ................................................................................................23
4.2.2 Lifting ..........................................................................................................23
4.3 Storage .......................................................................................................25
4.4 Preparation for installation ............................................................................26
5 Mounting and start-up ................................................................................. 28
5.1 Mounting the actuator onto the valve .............................................................28
5.2 Installing the valve into the pipeline ...............................................................28
5.2.1 Checking the installation conditions ...............................................................28
5.2.2 Additional ttings .........................................................................................30
5.2.3 Installing the control valve ............................................................................. 31
5.3 Quick check ................................................................................................31
6 Operation ...................................................................................................34
7 Servicing.....................................................................................................36
7.1 Replacing the gasket ....................................................................................38
7.1.1 For mounting using crossbeam and central nut (FormB) ..................................38
7.1.2 For mounting on rods (FormC)......................................................................39