ABB NGC8206, User Manual

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2101510 Rev. AG Page 2–7
2.3.2 Recommended Spare Parts
Totalflow has provided a recommended spare parts list for the NGC8206 product
line. Consideration was given to the cost of the repair time and the cost of stocking
repair parts. The NGC8206 modular design is uniquely suited to quick repair
times. All the modules are easily replaced in a short time. A more comprehensive
discussion of recommended spare parts can be found in
Maintenance .
2.3.3 Cast Aluminum Enclosure
The custom-designed, explosion-proof enclosure consists of a cylindrical shaped
cast aluminum housing, powder coated, with front and rear end caps for access to
internal components.
Figure 2-4 through Figure 2-7 shows the outline dimensions
of the NGC.
The end caps have precision-engineered threading and are susceptible to
damage if treated roughly. The enclosure and all fittings, including feed-through,
MMI connection and breather, are tested to NAME/Type 4X. Unauthorized
removal of the end caps are protected with a 1/16” hex socket set screw on each
end cap.
This enclosure may be pipe-mounted on a meter run using a pipe saddle, stand-
alone pipe-mounted, shelf-mounted, or optionally mounted in an environmental
enclosure. The unit may be directionally positioned using 1/8” hex socket set
screws located in the neck of the enclosure.
2.3.3.1 Exterior Hubs
The unit enclosure features six exterior hubs:
•
Gas feed-through assembly
•
Explosion-proof local MMI port
•
Four miscellaneous hubs, including:

Communication hub

Power hub

Digital input/output wire hub

Undefined hub