MEMO differential pressure versus permanent pressure loss
This illustrated document explains very clearly the difference between the differential pressure used to calculate a flow rate and the permanent pressure loss (or non-recoverable pressure loss) which is automatically induced when a restriction is inserted in a pipe.
MEMO differential pressure versus permanent pressure loss
This illustrated document explains very clearly the difference between the differential pressure used to calculate a flow rate and the permanent pressure loss (or non-recoverable pressure loss) which is automatically induced when a restriction is inserted in a pipe.