Pressure regulator including a press-fit spring retainer

A pressure regulator, comprising:

• a housing defining an interior volume, the housing including:
• a first housing portion including an inlet;
• a second housing portion;
• and
• an outlet;
• a divider separating the interior volume into first and second chambers, the divider including:
• a first valve member defining a passage between the first and second chambers;
• a diaphragm extending between the housing and the first valve member, fluid communication through the diaphragm being prevented;
• and
• a retainer securing the diaphragm relative to the first valve member, the retainer including a cylindrical portion and first and second annular portions, the cylindrical portion extending about the longitudinal axis and being press-fitted with respect to the first valve member, the first annular portion extending from the cylindrical portion and extending outwardly from the longitudinal axis, and the second annular portion being spaced along the longitudinal axis from the first annular portion, the second annular portion extending from the cylindrical portion and extending inwardly toward the longitudinal axis;
• and
• a second valve member being arranged between first and second configurations relative to the first valve member, the first configuration substantially preventing fluid communication between the inlet and the outlet, and the second configuration permitting fluid communication between the inlet and the outlet.