
Contents
EB 3128 EN 3
1 Safety instructions and safety measures .........................................................5
1.1 Notes on possible severe personal injury .........................................................8
1.2 Notes on possible personal injury ...................................................................8
1.3 Notes on possible property damage................................................................9
2 Markings on the device ...............................................................................11
2.1 Nameplate ..................................................................................................11
2.2 Nameplate position......................................................................................11
2.3 Material number..........................................................................................11
3 Design and principle of operation ................................................................12
3.1 Technical data .............................................................................................14
3.1.1 Process medium and scope of application......................................................14
4 Measures for preparation............................................................................19
4.1 Unpacking ..................................................................................................19
4.2 Transporting and lifting ................................................................................19
4.3 Storage.......................................................................................................19
5 Mounting and start-up.................................................................................20
5.1 Preparation for installation............................................................................20
5.2 Checking the installation conditions...............................................................21
5.2.1 Mounting position........................................................................................21
5.3 Additionalttings.........................................................................................22
6 Start-up and operation ................................................................................23
6.1 Start-up.......................................................................................................23
6.1.1 Installing the regulator..................................................................................23
6.1.2 Pipelineushing...........................................................................................24
6.1.3 Pressure test.................................................................................................24
6.2 Operation ...................................................................................................25
6.3 Starting up the plant.....................................................................................25
6.4 Adjusting the set point..................................................................................25
7 Maintenance ...............................................................................................29
7.1 Replacing the restriction................................................................................31
7.2 Replacing the seat and plug..........................................................................32