Valve ball for direct flow measurement

摘要

A valve includes a body having upstream and downstream ports, both ports configured relative to a common axis, and includes a ball arranged to rotate relative to the common axis between open and closed positions to allow for fluid flow/non-fluid flow. The ball has a calibrated member having a calibrated orifice that has a flow coefficient, pressure taps located upstream and downstream of the calibrated orifice and in communication with the upstream and downstream ports respectively to measure upstream and downstream pressures when in the open position, the upstream and downstream pressure taps are angled relative to the common axis, so conditions of fluid flow are determined based on a measured pressure differential between upstream and downstream pressure taps relative to the flow coefficient of the calibrated orifice when in the open position.