E1200 HT 260-3
8BMaintenance
23.04.07
00401010_41087
9-67
9.10.2
Flushing Process Gas Lines for Vacuum Processes
1. Close the manual shut-off valve of the process gas line.
2. Start up the assembly groups of the process gas line and the assembly groups
which are connected to the process gas line in accordance with their intended use,
e. g. synthesis steam generator, flaring unit, etc. In the process, set back interlocks
and restart assembly groups.
3. Set the process gas at the CESAR control computer as defined. Use the vacuum
pump to pump the process gas line down.
4. Set the process gas at the CESAR control computer to zero.
5. Open the inert gas valve for this process gas line and fill the process gas line with
inert gas.
6. Close the inert gas valve.
7. Use the vacuum pump to pump the process gas line down.
8. Repeat steps 4. to 7. another nine times to remove toxic and/or reactive gases
from dead areas within the process gas line.
9. Open the inert gas valve and purge the process gas line with inert gas. A purging
period of at least eight hours at max. MFC flow rate is required to purge process
gas lines which contain toxic and/or reactive gasses.
10. Close the inert gas valve.
11. The process gas line and the assembly groups have been purged.
Summary of Contents for E1200 HT 260-3
Page 1: ...Operating Instructions for Horizontal Furnace Equipment E1200 HT 260 3 Version 1 0 1_41087 11 ...
Page 2: ...E1200 HT 260 3 23 04 07 00401010_41087 ...
Page 4: ...E1200 HT 260 3 Document Information 23 04 07 00401010_41087 ...
Page 16: ...E1200 HT 260 3 Index 23 04 07 00401010_41087 ...
Page 18: ...E1200 HT 260 3 List of Figures 23 04 07 00401010_41087 ...
Page 20: ...E1200 HT 260 3 List of Tables 23 04 07 00401010_41087 ...
Page 26: ...E1200 HT 260 3 0BOperating Instruction Remarks 23 04 07 1 6 00401010_41087 ...
Page 34: ...E1200 HT 260 3 1BIntroduction 23 04 07 2 8 00401010_41087 ...
Page 50: ...E1200 HT 260 3 2BSafety 23 04 07 3 16 00401010_41087 ...
Page 78: ...E1200 HT 260 3 4BTransport 23 04 07 5 4 00401010_41087 ...
Page 180: ...E1200 HT 260 3 8BMaintenance 23 04 07 9 76 00401010_41087 ...
Page 228: ...E1200 HT 260 3 10BSpare and Wearing Parts 23 04 07 11 2 00401010_41087 ...