Air Products GASGUARD TE10, Installation, Operation And Maintenance Manual, Page: 79 / 196

Section 3: Tubing Connections
Revision – February 2005 Page 3 - 13
3.8 Weld Shield Gas, Purge Gas Connection
(Optional)
This VCR connection port provides a convenient point to introduce inert shielding
gas for welding, purge gas and certification gas during installation and testing of
the distribution system. The connection is teed from the purge gas inlet line and
includes a manual shut-off valve, “Weld Gas Inlet” (MV32 or MV30). It is
located on the inside right of the enclosure where temporary tubing can be
inserted and connected to the VCR fitting. When the temporary gases are no
longer required, the valves should be closed and the VCR connection capped.
Do not connect high pressure gas directly
to the weld gas port. A pressure reducing
regulator with a maximum delivery
pressure of 100 psig (6.89 barg) should be
used on the high pressure inert gas supply.
A safety relief device set at 150 psig (10.34
barg) should be installed downstream of
the pressure regulator.