For maximum accuracy, the flow measurement valve should be located in an unrestricted straight pipe run so that no fittings (elbow, valve, tee, etc.) is closer to the measurement valve than 5 pipe diameters upstream and 2 pipe diameter downstream.
For maximum accuracy, the flow measurement valve should be located in an unrestricted straight pipe run so that no fittings (elbow, valve, tee, etc.) is closer to the measurement valve than 5 pipe diameters upstream and 2 pipe diameter downstream.
为了实现最大的精确度，流量测量阀应该位于没有限制的直线管道上，在测量阀上游5倍管道直径长的距离内和下游2倍管道直径长的距离内不能有连接件（弯头，阀门，三通，等等）。