Doc No. 740048
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MODEL 96
TUBE TO TUBESHEET WELD HEAD
OPERATION MANUAL
7.0 GAS CHAMBERS
(Cont’d.)
7.3 Attach the nose ring to the end of the gas chamber, and lock it
in place with the two side latches. See fig. 12.
Fig. 12
8.0 NOSE RINGS
The Model 96 uses feet or tabs on the bottom of the nose ring to rest on
the tubesheet. The nose ring that comes standard with the head is
considered a generic nose ring, and can be used for multiple applications.
Shown in Fig. 12.
For applications that require higher levels of purge quality, either due to
the material, (such as when welding Titanium) or in the case of close tube
spacing (where some of the gas flows into adjacent tubes, diminishing the
purge quality), application specific nose rings are available. These nose
rings feature a smaller center hole as well as three screw-on feet.
