Check valve with flexible membrane
A flexible membrane and check valve technology, applied in the direction of control valves, valve devices, valve details, etc., can solve problems such as tearing and membrane rupture, and achieve enhanced mechanical pressure resistance, reduced risk of tearing, and improved sealing Effect
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[0063] refer to figure 1 , 3 , 4, 6 and 7, non-return valves, designated as a whole with reference 1 and hereinafter simply referred to as "valve", comprise a hollow body consisting of two connecting parts 2 and 3 arranged along the same longitudinal axis A. The first part 2 of the body extends through an inlet end piece 4 for fluid, while the second part 3 of the body extends through an outlet end piece 5 for fluid.
[0064] The valve seat 6 , here incorporated into the first part 2 of said body, extends transversely to the longitudinal axis A. As shown in FIG. A flexible membrane 7 of circular shape, mounted inside said body, opposite one surface of the valve seat 6, the membrane 7 is here fixed by its centre. In particular, as figure 1 , 3 Diaphragm 7 is held on a central pin 8 integral with valve seat 6, as shown in FIGS.
[0065] The valve seat 6 is pierced by a plurality of passage ports 9 , all arranged around the axis A, in particular around the central pin 8 . P...
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