5
Service Pipe Connection/Disconnection Method
1. Preparation before attachment of the service piping
1) Turn the stem of the high pressure and low pressure service valves (2 places) to open it
toward the back seated position.
2) Attach a packing to the service piping (2 places)
Note:
1.
Use a new packing.
2.
Check that there is no adhering foreign objects.
2. Service piping attachment
1) Remove the nut and packing included with the service valve (2 places).
2) Assemble the service piping.
First, turn the nut by hand until the packing needs to be fastened with a tool.
If it is difficult to fasten, loosen it slightly and try to make the nut parallel with the male thread
of the service valve, and then fasten it gradually.
Note:
Fastening the nut with a tool while the threads are not fully aligned would break
the thread and lead to a gas leak.
Back seated position
(Turn the stem fully counterclockwise)
Packing
Nut
(Service piping)
Nut
(2 places)
Service piping (SPK-TU125)
Joint (Swagelok, etc.) (Locally procured)
Joint valve (Locally procured)
Service/Maintenance
components
(Gas cylinder, hose, etc.)
Fasten by
hand
Remove
(Install after work)
Nut and packing
(Included with
the valve)
Service piping
Summary of Contents for OCU-CR200VF5
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