DIFF Subgroup
F22B 17/02 built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes
Introduced: September 1968
Full Title
Water-tube boilers of horizontally-inclined type, i.e. the water-tube sets being inclined slightly with respect to the horizontal plane > built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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- F22B 17/04 the water-tube sets being inclined in opposite directions, e.g. crosswise IPC+CPC Available in IPC and CPC