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Before first start-up check type label, if the manifold is suitable for the provided purpose (gas, pressure,
material, etc.)
6.5. INITIAL START UP
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All requirements are fulfilled as on point 6.4
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Manifold is depressurized, handwheel turned completely to left side
•
All valves on manifold are closed
WARNING!
•
Make sure the manifold components are not exposed to pressure levels that exceed their respective
permissible nominal pressure.
•
Make sure that nobody could be hurt because of the initial start-up of manifolds.
6.5.1. PROCESS GAS PURGING (MPLH0MSP UND MSLH0MSP,
MPLHEMSP UND MSLHEMSP)
Manifolds with inert gas purging were used to get air from the atmosphere out of the components, before you
change cylinder or you want to depressurize coil or hose before cylinder change.
1. Purge valve is closed, red mark is visible
2. Pressure regulator is depressurized (closed)
3. Close inlet pressure valve, red mark visible.
4. Now the inlet pressure valve is just closed in direction pressure regulator. The way through purge valve
is open.
5. Slowly open cylinder valve
6. Process gas is streaming into coil/ hose
7. Close cylinder valve
8. Shortly open purge valve and let the gas from the coil/hose go
9. Immediately close purge valve after that
REPEAT STEPS 4.-8. FOR MINIMUM 10 TIMES
6.5.2. INERT GAS PURGING (MSLH0MSE, MSLHEMSE)
Manifolds of type MSLH0MSE, MSLHEMSE with external gas purging were used to purge toxic or corrosive
gas before cylinder change and to depressurize coil or hose. Make sure that relief valve tubing is connected.
1. Check if purge gas inlet, purge gas outlet, process gas inlet, relief valve and if existent safety valve are
connected properly
2. Close all valves, red marking is visible
3. Close pressure regulator by turning the handwheel anti clockwise
4. Open inlet purge valve
5. Close inlet purge valve. Gas has to stay for any seconds inside the component.
6. Open outlet purge valve for a very short time to release external purge gas through purge gas outlet
tubing
7. Close outlet purge valve
REPEAT STEPS 4.-7. FOR MINIMUM 10 TIMES
6.5.3. FILL THE PROCESS GAS TUBING WITH PROCESS GAS
Before initial start-up and filling the gas tubing with process gas depending on manifold version process gas
purging (see point 6.5.1) or inert gas purging (see point 6.5.2) is necessary Because of safety reasons we
recommend to connect relief gas tubing.
1. Check if purge gas inlets, purge gas outlets, process gas inlets, relief valve and if existent safety valve
and/ or check valves are connected properly
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 process valves.
6. Set outlet pressure with regulator handwheel by turning clockwise
7. Manifold is now in operation
WE RECOMMEND CHECKING THE MANIFOLD AND PRESSURE GAUGES ON DAILY BASIS.
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