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F22D—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
F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnaces, fire tubes or flue ways
F22D1/14—Safety or venting devices
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FR12205D1909-12-021910-02-10Système de circulation d'eau pour économiseurs et autres
ExpiredFR12205E
(fr)