Lasting pressure reduction as a consequence of energy conversion (e.g. at a flow resistance) (DIN 24 312).
The pressure loss along with the leakage loss is the most important source of loss in hydraulic systems. It arises due to the of the pressure fluid in the pipes and the devices, and also due to mechanical friction losses (e.g. in guides or at seals). There is therefore available in the working element (cylinder, motor) an operation pressure that is reduced by the pressure loss Δp.
The power loss P v produced in this manner is:
