SWIVEL-TYPE COUPLING DEVICE FOR A RADIATOR

摘要

The invention relates to a swivel -type coupling device (10) enabling relative rotation between heating fluid conveying conduits of a domestic heating radiator unit connected thereto. The swivel -type coupling device comprises: a first cup- shaped member (11) having an axial bore extending therethrough and being connectable to a first heating fluid conveying conduit, a second cup- shaped member (12) having an axial bore extending therethrough and being connectable to a second heating fluid conveying conduit. The cup -shaped members are coaxially arranged with their hollow portions facing one another, in order to form an axial cavity which communicates with heating fluid conveying conduits. A bushing (14) is arranged to slide axially within the axial cavity and is capable of providing a fluid- tight seal of the axial cavity. A resilient element (17) is interposed between the bushing and the first cup -shaped member of the coupling device.