6.4. REQUIRED QUALIFICATIONS FOR INITIAL START-UP AND CYLINDER
CHANGING
•
The test protocols from the piping according to tightness and if necessary, moisture and particles are
available
•
In process gas tubing is only standard gas (see 1.2)
•
The start-up is only realized by qualifi ed personal
•
Wear safety clothes according to regulations
•
Use spark-free tools and provide before installation
•
Before fi rst start-up check type label, if the component is suitable for the provided purpose (gas, pressure,
material, etc.)
6.5. INITIAL START UP
•
All requirements are fulfi lled as on point 6.4
•
Shut-off valve is closed, red marking is visible
WARNING!
•
Make sure the valve are not exposed to pressure levels that exceed their respective permissible nominal
pressure.
6.5.1. FILL THE PROCESS GAS TUBING WITH PROCESS GAS
Open the shut-off valve slowly and carefully.
The shut-off valve is now in operation.
It is recommended to check the shut-off valve daily and to check the tightness.
6.5.2. TAKING GAS SUPPLY OUT OF OPERATION
Close shut-off valve.
Shut-off valve is now out of operation. Reparation and/ or maintenance work could be done now.
6.6. TESTS
•
After pressurizing check the function of shut-off valve.
7. OPERATION
In reference to chapter 2.1 the operation of the cylinder regulator is defi ned.
BEWARE!
•
Cylinder regulators must always be opened slowly and carefully to prevent pressure surges in the system
and damage to the other components!
For a brief interruption of gas removal it is suffi cient to close the shut off or regulating valve on the regulator.
For a longer interruption the regulator must be released from pressure by turning the handwheel anti clock-
wise. Close the cylinder valve as a safety precaution.
8. MAINTENANCE
8.1. SAFETY NOTES FOR MAINTENANCE
NOTE!
•
Maintenance may only be performed by suffi ciently qualifi ed, trained and authorized individuals (see sec-
tion 2.4)
8.2. MAINTENANCE PLAN
The following sections describe the maintenance works that must be performed to ensure the optimum and
trouble-free operation of the regulator.
If regular inspections reveal increased wear, the requisite maintenance intervals must be shortened to refl ect
the actual wear and tear.
15/294
EN