Horiba Stec, Co., Ltd.

David Daniel Webster

John Thomas Dick

A valve orifice insert has a stepped-shaped wall including a first tubular section and a second tubular section having a smaller outer dimension than the first tubular section, and a lip structure protruding axially and including a planar valve seat surface. The first tubular section and the second tubular section being are joined by a step structure. At least one circumferential protrusion extends radially outward a predetermined distance from an outer surface of the first tubular section or an outer surface of the second tubular section to form an interference fit with the step-shaped opening when the valve orifice insert is fitted into the step-shaped opening.

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Reno, NV, United States of America

David Daniel Webster