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PCE
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IPC Subgroup
F22D 5/14

responsive to thermal expansion and contraction, e.g. of solid elements

Introduced: September 1968

Last revised: January 2006

Full Title

Controlling water feed or water level; Automatic water feeding or water-level regulators > responsive to thermal expansion and contraction, e.g. of solid elements

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
STEAM GENERATION
Subclass:
PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS

1 direct subcode

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