Method of manufacturing flow selector disk for fluid pressure regulator

A method of manufacturing a flow selector disk for a fluid pressure regulator, including the steps of:

• providing a plate having a first face, a second face, and a thickness dimension;
• forming at least one baseline orifice in the plate including a central flow portion extending through the plate between the first and second faces and along a central flow axis, the at least one baseline orifice including a geometry defining a cross-sectional dimension;
• forming a first aperture portion in the plate adjacent to the first face and along an axis generally coaxial with the central flow axis, the first aperture portion being in fluid communication with the central flow portion and having a relatively larger cross-sectional dimension than the cross-sectional dimension of the central flow portion, the first aperture portion extending into the plate a longitudinal distance less than the thickness dimension of the plate so as to create an annular ring at the interface of the first aperture portion and the central flow portion;
• and
• plastically deforming a portion of the annular ring adjacent the central flow portion to thereby reduce the cross-sectional dimension of the central flow portion.

A method of manufacturing a flow selector disk for a fluid pressure regulator, including the steps of:

• providing a plate having a first face and a second face;
• forming at least one baseline orifice in the plate including a central flow portion extending through the plate and along a central flow axis;
• forming a first diameter portion in the plate adjacent the first face and generally coaxial with the central flow axis;
• forming a second diameter portion in the plate adjacent the second face and generally coaxial with the central flow axis, the second diameter portion being spaced a distance from the first diameter portion so as to form an annular ring therebetween;
• providing a plunger having a pressing surface, the plunger being adapted to be inserted into at least one of the first and second diameter portions;
• inserting the plunger into the second diameter portion to locate the pressing face in abutment with at least a portion of the annular ring;
• applying a force to the plunger along a force axis generally coaxial with the central flow axis;
• and
• plastically deforming a portion of the annular ring adjacent the central flow portion to thereby reduce the diameter of the central flow portion.