The new Schroeder SIP pump protection valve is the completion of the Schroeder portfolio and particularly developed to cover high pressure applications up to 250 bar with frequent plant operation at minimum flow conditions, i.e. with open bypass. Typical for this valve-type and the most relevant application is the boiler feed water cycle of combined cycle power plants (CCPP). In these power plants the bfw-pumps operate frequently at minimum flow conditions with pressures of 120–250 bar. The reason is the technical concept of a CCPP (e.g. gas turbine cooling with bfw.) as well as its purpose to cover load peaks in the energy grid.