A THERMOSTATIC VALVE FOR A FLUID FLOW CIRCUIT AND METHOD OF MANUFACTURING SUCH A VALVE

The thermostatic valve (1) comprises a thermostatic element (20) of which the moving part (22) brings about the movement, with respect to the valve body (10), of a shut-off element (30) that regulates the flow of a fluid through this valve body, and a compressed spring (40) designed to return this moving part towards the fixed part (21) of the thermostatic element and the relaxation force of which is borne by at least two arms (15) of the valve body, a first longitudinal end (152) of which is moulded as one with the remainder of this valve body. To make it easier to manufacture the valve body and to assemble it with the other components of the valve, each arm, at its second longitudinal end (15-i), delimits a contact surface (15A) for contact with the spring and against which surface one end (41) of this spring presses under of the effect of its relaxation. In addition, at its first end, each arm is connected to the rest of the valve body in a way that is deformable between a first extreme position in which the contact surface is positioned in line with the spring, and a second extreme position in which the contact surface is off-axis, passing through an intermediate position somewhere between these extreme positions, which intermediate position is occupied by the arm at rest and in which the contact surface (15A) of this arm is situated a radial distance (da) away from the axis (X-X) of the thermostatic element, which distance is less than the corresponding maximum radial dimension (d40) of the spring (40). La vanne thermostatique (1) comprend un élément thermostatique (20) dont la partie mobile (22) commande en déplacement par rapport au corps de vanne (10) un obturateur (30) de régulation de la circulation d'un fluide à travers ce corps de vanne, ainsi qu'un ressort comprimé (40), adapté pour rappeler cette partie mobile vers la partie fixe (21) de l'élément thermostatique et dont l'effort de décompression est supporté par au moins deux bras (15) du corps de vanne dont une première extrémité longitudinale (152) est venue de moulage avec le reste du corps de vanne. Pour faciliter la fabrication de ce corps de vanne et son assemblage aux autres composants de la vanne, chaque bras délimite, à sa seconde extrémité longitudinale (151), une surface (15A) de contact avec le ressort contre laquelle une extrémité (41 ) de ce ressort s'appuie sous l'effet de sa décompression. De plus, à sa première extrémité, chaque bras est lié au reste du corps de vanne de faço