Valve assembly and method for manufacturing a valve assembly

Abstract

The body (11) of a valve assembly (1) has a gas flow path comprising a first flow path (12) and a second flow path (13). The first flow path (12) is configured to be connected to a gas tank (2) that stores gas. The second flow path (13) is configured to be selectively connected to any one of a variety of external devices (3). The second flow path (13) has a main flow path defined by a linearly extending hole and a secondary flow path defined by a linearly extending hole that intersects the main flow path. The secondary flow path has an intersection opening end that opens to an inner circumferential surface of the main flow path. A circumferential edge (61, 71) of the intersection opening end in the body (11) has a concave surface recessed with respect to a centerline of one of the two flow paths.The concave surface is configured such that in a cross-section having the centerlines of the flow paths of the main flow path and the secondary flow path, an angle of the circumferential edge (61, 71) is greater than an angle of intersection of the secondary flow path with respect to the main flow path.

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