Multi-section valve bodies having face seals

A valve body comprising:

• a first tail portion defining a first portion of a passageway and having a first flange with a first annular groove, the first annular groove extending into the first flange in a direction substantially parallel to a longitudinal axis of the passageway, the first tail portion having a first annular wall section extending from the first flange;
• a second tail portion defining a second portion of the passageway and having a second flange with a second annular groove, the second annular groove extending into the second flange in a direction substantially parallel to the longitudinal axis of the passageway, the second tail portion having a second annular wall section extending from the second flange;
• and
• a valve portion having a bore defining a third portion of the passageway, the valve portion having a first end surface and a second end surface opposite the first end surface, wherein the first flange engages the first end surface and the first annular wall section extends into at least a portion of the bore, and wherein the second flange engages the second end surface and the second annular wall section extends into a least a portion of the bore.

An apparatus comprising:

• a first body defining a first portion of a valve passageway and having a fluid flow axis, the first body having a first sealing surface substantially perpendicular to the fluid flow axis and a first male extension extending from the first sealing surface;
• a second body defining a second portion of the valve passageway, the second body having a second sealing surface substantially perpendicular to the fluid flow axis and a second male extension extending from the second sealing surface;
• a third body having a bore defining a third portion of the valve passageway, the third body having a first end surface to be substantially parallel to the first sealing surface and a second end to be substantially parallel to the second sealing surface;
• first means for sealing to prevent a flow of fluid between the first sealing surface of the first body and the first end of the third body when the when the first body is coupled to the third body;
• and
• second means for sealing to prevent the flow of fluid between the second sealing surface of the second body and the second end of the third body when the second body is coupled to the third body.