| 摘要 |
A structure is provided for use in a globe valve or the like in installations where constant flow is desired despite variations in inlet and outlet pressures. The valve stem is attached to the structure and movement of the stem determines the effective maximum flow through the valve. Inlet and outlet pressures operate upon opposite sides of a diaphragm, and the differential in pressure causes movement of a valve member relative to an orifice and thereby maintains constant flow through said orifice.
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