| 摘要 |
An actuator housing for a fluid regulating device, the actuator housing adapted to contain a control assembly comprising a control element and a diaphragm for controlling the flow of a fluid through the fluid regulating device, and a relief valve for providing overpressure protection, the actuator housing comprising an upper housing component comprising a circumferential flange defining a plurality of circumferentially spaced apertures, a lower housing component comprising a circumferential flange defining a plurality of circumferentially spaced apertures, the apertures in the flanges of the upper and lower housing components adapted to receive fasteners for sealingly securing the diaphragm of the control assembly of the fluid regulating device therebetween, a vent extending from the upper housing component and adapted to contain the relief valve of the fluid regulating device, the vent comprising an upright portion and a coupling portion that is cantilevered from the upright portion and disposed above a top surface of the flange of the upper housing component and a seating surface defined by the top surface of the flange of the upper housing component, against which the plurality of fasteners are adapted to seat, the seating surface comprising a continuous ring-shaped surface providing unobstructed access to the plurality of fasteners. |
