Set of design maps for the EU DEMO VVPSS, for each: VVPSS size Number of VVPSS connections Initial VVPSS temperature reporting peak and equilibrium pressure in the VV following an in-vessel LOCA initiated by a double-ended guillotine break of the largest feeding pipe. Model details reported in publication A. Froio and I. Moscato, Effect of different system parameters on the design of the EU DEMO vacuum vessel pressure suppression system, submitted to Fusion Engineering and Design. The README.txt file has been written according to the Dubline Core Standard for Metadata (https://www.dublincore.org/).