VALVE, PARTICULARLY FOR COMPRESSORS, WITH VALVE FACE HAVING A CONCAVE PROFILE

摘要

Valve, preferably for compressors, comprising a seat (2; 4) in which there are formed one or more flow apertures (102; 104), positioned with their axes parallel to that of the said seat (2; 4), and a valve face member movable in a direction parallel to the axis of the said seat, comprising one or more valve face elements (1; 3) capable of interacting with the said apertures (102, 104) formed in the said seat (2; 4); each valve face element (1; 3) has, on the surface facing the said aperture (102; 104), a concave profile (111; 113) which is symmetrical with respect to the axis of the corresponding aperture.