| 摘要 |
<p>The valve for a fluid comprises a body (1) made from a moulded synthetic resin, this body (1) being surrounded by a casing (25) consisting of an extruded profile. This casing (25) has openings (30) in which are fastened sleeves (31) having a threaded bore and constituting the connection pieces making it possible to connect the valve to the pipeline. Seals (34) between the sleeves (31) and the valve body are arranged so as to permit a relative displacement between these parts without any loss of leaktightness during the displacements caused by the temperature-dependent differences in the expansion of the pieces. …<IMAGE>… </p> |
