Rapidly mounted thermostat

摘要

A thermostat comprises a case (1) forming an elbow through which extends a fluid passageway 2 comprising a fluid inlet region (22) and a fluid outlet region (21) and containing a thermostatic element (3). The thermostatic element (3) includes a fixed part (31), a movable part (32) which carries a closing device (4) cooperating with a seat (23), a bridge (5) in which the movable part (32) is slidable, and a spring (6) biasing the bridge (5) away from the closing device (4). The case (1) is in one piece; the fixed part (31) bears against the wall of the passageway (2); the inlet region (22) comprises inwardly extending projections (19) for blocking movement of the bridge (5) caused by the spring before mounting the thermostat on a support. The bridge (5) carries tabs projecting in the upstream direction and outwardly so that when the thermostat is fixed on the support (S) they are urged back by the support (S) in the downstream direction and the force exerted by the spring (6) on the bridge (5) is transferred from the projections of the passageway (2) to the support (S).