FLOW MEASURING ARRANGEMENT

摘要

A flow measuring arrangement has a first flowmeter in a main flow path (22), a second flowmeter (27) in an auxiliary flow path (26) and an evaluating circuit (42) for the evaluation of the measuring values of both flowmeters. The flowmeter has a lifting valve (16) and a lift measuring device determining the opening degree. The lifting valve has a movable valve element (19), which is loaded by a closing spring (20) and closes against the flow direction. As the opening degree only depends on the flow and on the characteristic of the closing spring, the lift of the lifting valve (16) is measured for the flow in the main flow path (22).