ES192533U - A valve. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A valve including a rotary valve element comprising a rotating rod having a free end and an annular reinforcement; a valve body having a chamber including a seat coupled with the valve element, and a circumferential holding face surrounding said chamber; a covering element having a central opening that loosely accommodates the shank and that includes a complementary fixing face of the body fixing face a sealing diaphragm of non-metallic material, impervious to fluids and gases having an edge exterior that is superimposed on the fixing face of the body, and a central position provided with a hole that receives the stem, and which is applied in a hermetic manner against its annular reinforcement; a deformable pressure sealing ring surrounding the stem and which is superimposed on said reinforcement and on the contact portion of the diaphragm of. Sealing, said sealing ring having an outer annular surface; a rigid thrust ring surrounding the rod and which is superimposed on the sealing ring, and means for displacing the thrust ring towards said sealing ring; a rigid metallic diaphragm having an edge disposed between the fixing faces mentioned above and a central portion provided with an orifice surrounding the stem, said orifice portion having a marginal zone oriented towards the end of the stem and opposite the stem reinforcement, and in contact with both the rigid thrust ring and said outer annular surface of the pressure sealing ring surrounding the rod; and means securing the edges of both diaphragms between the fixing faces of the body and the covering element. (Machine-translation by Google Translate, not legally binding)