Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
6.1.4.3. Fitting the filling adaptor
•
Connect the filling adaptor using a max. tightening torque of 3,5 Nm.
To prevent damage to the combination valve, the pressure inside the combination valve must
be vented according to 6.1.4.2 before fitting the filling adaptor.
A pneumatic or electric wrench can be used with some types of filling adaptors. However
these must be equipped with a torque limiting device to ensure tightening torque will not
exceed 3,5 Nm.
6.1.4.4. Venting residual gas from the cylinder
A. Cylinder venting through the flow control head:
•
Slowly open the shut-off valve hand wheel (anticlockwise) until fully open - after approx. 1 turn
(see indication in the picture in chapter 5).
•
Set the flow control head to the maximal position - ensure that the flow control head engages
correctly.
•
Wait until the cylinder has vented completely.
•
Close the shut-off valve (clockwise). Do not use excessive torque (max. closing torque is
5 Nm).
•
Set the flow control head in the "0" position.
B. Cylinder venting through the gas pressure outlet:
•
Slowly open the shut-off valve hand wheel (anti-clockwise) until fully open - after approx. 1 turn
(see indication in the picture in chapter 5).
•
Insert the quick probe in the combination valve quick coupler (refer to appendix No. 2 to
get information about connecting / disconnecting procedure of quick coupler type on your
product).
•
Wait until the cylinder has vented completely.
•
Close the shut-off valve (clockwise). Do not use excessive torque (max. closing torque is
5 Nm).
•
Disconnect the quick coupler probe.
Note: Venting the cylinder by following steps "A" or "B" can be performed prior to fitting the
filling adaptor. Venting the cylinder by following steps 'C' and 'D' requires the filling adapter
to be fitted to the combination valve first according to chapter 6.1.4.3.
C. Venting the residual gas from the cylinder through a filling port
•
Ensure all lines of the filling manifold are correctly connected to the combination valve filling
ports.
•
Ensure the manifold vent valve and isolation valve are closed.
•
Slowly open the combination valve shut-off valve hand wheel (anti-clockwise) until fully open
- after approx. 1 turn (see indicator in the picture in chapter 5).
•
After pressure between the cylinders and filling manifold is settled open the manifold vent
valve
•
Wait until the residual gas is completely vented from all the cylinders.
•
Close the manifold vent valve.
D. Vacuuming the cylinder
If it is necessary to vacuum the cylinder to reach the required gas purity, it is possible through
the combination valve filling port after venting the cylinder.
•
Connect the combination valves to the filling manifold and vent cylinders according to 'C'
above.
•
Ensure the manifold vent and isolation valves are closed.
•
Ensure the combination valve shut-off valve is fully open.
•
Open the manifold vacuum valve.
•
When the required vacuum level has been reached close the manifold vacuum valve.
Venting the gas cylinder must be done in a well vented area to prevent saturation of ambient
atmosphere with oxygen that would increase the risk of ignition.
19/108
EN
Werbung
Inhaltsverzeichnis
