HEAT SUPPLY SYSTEM TEMPERATURE CONTROLLER Russian patent published in 1997 - IPC

FIELD: heating systems; water radiators. SUBSTANCE: temperature controller has journalled cock and thermostat connected with cock by means of union nut. Cock has spring-loaded stem with shutoff member engaging with seat. Thermostat has temperature converter in form of bellows fitted by one end in thin-walled housing and forming a ring space with the housing. Ring space is filled with vapor-and-liquid working medium. Other end of bellows is made blind. Bellows accommodate compression spring resting on cover of thermostat housing and relieving the bellows from pressure. Pressure stem is mounted in central hole of cover for reciprocating. Thickness of compression spring coils and their pitch are selected to provide mechanical stop preventing closing of bellows goffers. EFFECT: improved reliability of operation. 2 cl, 2 dwg