"785000" . "Qualified" . "DIFFERENTIAL PRESSURE FLOW METER" . "DIFFERENTIAL PRESSURE FLOW METER" . "RDS462509" . "A flow meter with a restriction placed in the flow line causes the velocity of the flowing fluid to change. The change of flow velocities causes changes in pressures between two measurement points which then is used to calculate the flow velocity." . "u20683" . "2006.01.17" . .