A fluid regulating device, comprising: a valve (104, 304, 404, 504) having an inlet, an outlet (108, 408), and a throat disposed between the inlet and the outlet (108, 408); an actuator coupled to the valve and comprising a valve disc, the valve disc disposed within the valve and adapted for displacement between a closed position adjacent to the throat, an operating position spaced a first distance away from the throat, and a relief position spaced a second distance away from the throat; and a cartridge (200, 300, 400, 500) disposed in the valve (104, 304, 404, 504), characterized in that: the cartridge (200, 300, 400, 500) comprises a generally cylindrical first portion (202, 412) disposed proximate to the throat, a generally cylindrical second portion (204, 414) disposed proximate to the actuator, and a conduit portion extending from the first portion and disposed between the first portion (202, 412) and the outlet (108, 408) of the valve (104, 304, 404, 504), wherein the first portion (202, 412) defines an aperture (210, 420) through a sidewall of the first portion (202, 412), the first portion (202, 412) of the cartridge (200, 300, 400, 500) having an inner dimension that is sized and configured to slidably receive at least a portion of the valve disc when the valve disc is in the operating position such that the valve disc and the cartridge (200, 300, 400, 500) cooperate to direct a flow of fluid from the throat to the outlet (108, 408) and away from the actuator. a valve (104, 304, 404, 504) having an inlet, an outlet (108, 408), and a throat disposed between the inlet and the outlet (108, 408); an actuator coupled to the valve and comprising a valve disc, the valve disc disposed within the valve and adapted for displacement between a closed position adjacent to the throat, an operating position spaced a first distance away from the throat, and a relief position spaced a second distance away from the throat; and a cartridge (200, 300, 400, 500) disposed in the valve (104, 304, 404, 504), characterized in that: the cartridge (200, 300, 400, 500) comprises a generally cylindrical first portion (202, 412) disposed proximate to the throat, a generally cylindrical second portion (204, 414) disposed proximate to the actuator, and a conduit portion extending from the first portion and disposed between the first portion (202, 412) and the outlet (108, 408) of the valve (104, 304, 404, 504), wherein the first portion (202, 412) defines an aperture (210, 420) through a sidewall of the first portion (202, 412), the first portion (202, 412) of the cartridge (200, 300, 400, 500) having an inner dimension that is sized and configured to slidably receive at least a portion of the valve disc when the valve disc is in the operating position such that the valve disc and the cartridge (200, 300, 400, 500) cooperate to direct a flow of fluid from the throat to the outlet (108, 408) and away from the actuator. the cartridge (200, 300, 400, 500) comprises a generally cylindrical first portion (202, 412) disposed proximate to the throat, a generally cylindrical second portion (204, 414) disposed proximate to the actuator, and a conduit portion extending from the first portion and disposed between the first portion (202, 412) and the outlet (108, 408) of the valve (104, 304, 404, 504), wherein the first portion (202, 412) defines an aperture (210, 420) through a sidewall of the first portion (202, 412), the first portion (202, 412) of the cartridge (200, 300, 400, 500) having an inner dimension that is sized and configured to slidably receive at least a portion of the valve disc when the valve disc is in the operating position such that the valve disc and the cartridge (200, 300, 400, 500) cooperate to direct a flow of fluid from the throat to the outlet (108, 408) and away from the actuator.