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EN
6.5 INITIAL START UP
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All requirements are fulfilled as on point 6.4
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Gas supply panel is depressurized, handwheel turned completely to left side
WARNING!
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Make sure the panel components are not exposed to pressure levels that exceed their respective permis-
sible nominal pressure.
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Make sure that nobody could be hurt because of the initial start-up of panels.
6.5.1 Inert gas purging (MTLX and MTLT with inert gas purging)
Panels with inert gas purging were used to get air from the atmosphere out of the panel, when you have
changed cylinder or you want to depressurize coil or hose before cylinder change.
1. Outlet purge valve is closed, red mark is visible
2. Pressure regulator is depressurized (closed)
3. Close inlet pressure valve, red mark visible. Now the inlet pressure valve is just closed in direction pres-
sure regulator. The way through purge valve is open.
4. Slowly open cylinder valve
5. Process gas is streaming into coil/ hose
6. Close cylinder valve
7. Shortly open purge valve and let the gas from the coil/hose go
8. Immediately close purge valve after that
9. Repeat steps 4.-8. For approx., 10 time
6.5.2 Fill the process gas tubing with process gas
Before initial start-up and filling the gas tubing with process gas inert gas purging is necessary (see point
6.5.1). Because of safety reasons we recommend to connect relief gas tubing.
1. Check if coil/hose, purge and relief tubing are installed correct.
2. All valves are closed, red mark is visible
3. Turn handwheel of the pressure regulator all the way to stop – regulator is closed
4. Slowly open cylinder valve
5. Slowly open inlet pressure valves.
6. Set outlet pressure with regulator handwheel
7. Panel is now in operation
We recommend checking the panel and pressure gauges on daily basis.
6.5.3 Change empty gas cylinder
TIPS AND RECOMMENDATIONS!
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MAK- Value (see Technical Rules for Hazardous Substances, TRGS 900)
8. Close cylinder valve
9. Close inlet valve on empty cylinder side
10. Open purge valve to depressurize coil/ hose.
11. Disassemble coil/ hose from gas cylinder
12. Connect new gas cylinder, use always new gasket
13. Before start-up again inert gas purging is necessary, see 6.5.1
6.5.4 Taking gas supply panel out of operation
By turning the handwheel anti clockwise close the regulator on manifold. The closing of pressure regulator
guarantees no complete tight ness against gas leak through coils or connected consumers.
Always close cylinder valve because of safety reasons. If the manifold will be completely disassembled, note
the following:
