Abstract: A fluid control valve with a butterfly-type flow control element, with high operating reliability, comprising a valve body which is crossed by a passage with an inlet and an outlet which can be connected to two branches of a duct for a fluid to be controlled by means of the valve. The valve body accommodates, in an intermediate region of the passage, a butterfly-type flow control element which can be actuated in order to open or close the passage. The valve body supports, in the intermediate region of the passage, an annular gasket which can be engaged by the flow control element in the closure position. The valve body is provided in at least two parts which are mutually coupled at the region that is occupied by the annular gasket and lock the annular gasket between the parts in a mutual coupling position.

Abstract: A fluid control valve with a butterfly-type flow control element, with high operating reliability, comprising a valve body which is crossed by a passage with an inlet and an outlet which can be connected to two branches of a duct for a fluid to be controlled by means of the valve. The valve body accommodates, in an intermediate region of the passage, a butterfly-type flow control element which can be actuated in order to open or close the passage. The valve body supports, in the intermediate region of the passage, an annular gasket which can be engaged by the flow control element in the closure position. The valve body is provided in at least two parts which are mutually coupled at the region that is occupied by the annular gasket and lock the annular gasket between the parts in a mutual coupling position.