| 摘要 |
The invention relates to a draining block for a hydraulic circuit, comprising a first heating generator linked to heating bodies by a loop of primary pipework and, with a view to connecting a second heating generator to the circuit by means of a draining pipework loop, a direct rigid tube of specified length having means for connecting to the primary loop in a section of the same length made in this loop, the tube being equipped with two branches for connecting to the draining loop. This draining block is characterised in that the direct tube 31 is rectilinear and capable of being inserted in the pipework of the primary loop 12 with the aid of rapid connection means without welding 36, 37, the two drain branches 32, 33 being attached to the rectilinear tube in the region of a node 34 of the latter forming the housing of a turning valve 35 which constitutes a combination of a valve regulating the ratio of direct and drained flow rates and a means for isolating each of the two drain branches. Application especially to hot water central heating circuits. <IMAGE>
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