| 摘要 |
In order to transfer a fluid between an upstream circuit and a downstream circuit which are capable of being displaced slightly with respect to each other, for example in a cladding breakage installation equipping a fast-neutron nuclear reactor, a sampling adaptor 42 is used, the lower end of which rests under gravity on a funnel 28 of the upstream circuit, and the upper end of which interacts with the downstream circuit via a leaktight universal joint 50. This universal joint comprises a cylinder 46 of vertical axis in which a sphere 48 is received, defining with the bottom of the cylinder 46 a chamber 52. The upper wall of this chamber 52 is formed on that of the members consisting of the sphere and the cylinder, which is fixed onto the adaptor 42, such that an increase in the flowrate controlled by a pump placed in the downstream circuit has the effect of increasing in the bearing force of the adaptor on the funnel. Any risk of instability or detachment of the adaptor 42 is thus eliminated. <IMAGE>
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