Abstract: A valve body includes a first opening, a second opening, a gallery, a first flow conduit portion, a second flow conduit portion, and an upper flow diverter. The gallery is disposed between the first and second openings. The first flow conduit portion extends between the first opening and a side opening of the gallery. The second flow conduit portion extends between the second opening and a bottom opening of the gallery. The upper flow diverter is carried by an upper wall portion of the first flow conduit portion and extends into the first flow conduit portion. In one version, the upper flow diverter includes an elongated structure extending at least partially between the first opening and the gallery for diverting the fluid flowing through the first flow conduit portion and into the gallery.

Abstract: A valve body includes first and second openings, a gallery, and first and second flow conduit portions. The openings are centered on a central axis of the valve body. The gallery is disposed between the openings and includes a cylindrical space on a gallery axis that is perpendicular to the central axis. The first flow conduit portion extends between the first opening and a side opening of the gallery. The second flow conduit portion extends between the second opening and a bottom opening of the gallery. The second flow conduit portion includes a straight cylindrical conduit section in communication with and extending away from the bottom opening of the gallery. The straight cylindrical conduit section has a diameter that is equal to or less than a diameter of the bottom opening of the gallery to facilitate fluid flow through the valve body.

Abstract: A valve body includes a first opening, a second opening, a gallery, a first flow conduit portion, a second flow conduit portion, and an upper flow diverter. The gallery is disposed between the first and second openings. The first flow conduit portion extends between the first opening and a side opening of the gallery. The second flow conduit portion extends between the second opening and a bottom opening of the gallery. The upper flow diverter is carried by an upper wall portion of the first flow conduit portion and extends into the first flow conduit portion. In one version, the upper flow diverter includes an elongated structure extending at least partially between the first opening and the gallery for diverting the fluid flowing through the first flow conduit portion and into the gallery.

Abstract: A control valve pressure actuator of the pressure-to-close type is provided with a housing in which an upper diaphragm casing thereof includes one or more air passage channels. Each of the air passage channels facilitates circulation of air above a diaphragm within the pressure actuator at all times, including when the diaphragm is in a fully open position. By permitting the circulation of air above the diaphragm even when in a fully open position, adjacent an inside surface of the top of the upper diaphragm casing, there is not a tendency for the diaphragm, biased toward the open position by springs, to stick to the inside surface of the top of the upper diaphragm casing.

Abstract: A control valve pressure actuator of the pressure-to-close type is provided with a housing in which an upper diaphragm casing thereof includes one or more air passage channels. Each of the air passage channels facilitates circulation of air above a diaphragm within the pressure actuator at all times, including when the diaphragm is in a fully open position. By permitting the circulation of air above the diaphragm even when in a fully open position, adjacent an inside surface of the top of the upper diaphragm casing, there is not a tendency for the diaphragm, biased toward the open position by springs, to stick to the inside surface of the top of the upper diaphragm casing.