DIFF Subgroup
F22B 9/12 the fire tubes being in substantially-horizontal arrangement
Introduced: September 1968
Full Title
Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body > the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber > the fire tubes being in substantially-horizontal arrangement
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- F22B 9/14 Arrangement of header boxes providing for return diversion of flue gas flow IPC+CPC Available in IPC and CPC