Liquid (and vapor) transfer connections for the industrial qases listed in Table 1 are specified in this standard.
An obsolete/limited standard flanged connection system for oxy.qen, nitrogen, and ar.qon is also specified. The
specified connections are intended for use with liquid transport equipment, such as cargo tanks, portable tanks,
and railway tank cars but do not apply to barges and marine tankers. Termination points at liquid production
plants and on stationary storage vessels that directly interface with this transport equipment are also included.
The connections in this standard are intended for use exclusively with the specified products. These connec-
tions are not intended for use on uninsulated or insulated (DOT 4L) cylinders, tubes, or on small equipment
using connections less than 1 in (25 mm). The physical design of the fittings, other than the connection configu-
ration at the coupling point, is also beyond the scope of this standard.
Specialized vacuum-jacketed bayonet connections, which are required for some cryogenic products, are not
included in this standard.
CGA V-6-2008 Referenced Document
CGA G-4.1 CENTRIFUGAL COMPRESSORS FOR OXYGEN SERVICE
CSA B51 Code for boilers, pressure devices and pipes