Electric pump assembly, manufacturing method for installing such a pump assembly

A pump assembly (1) for pumping fluids, including a pump (2) and an electric motor (3) to drive the pump (2), said motor (3) comprising a stator (4) and a rotor (5) separated by a gap (E), said pump assembly also including a casing (6) delimiting a housing accommodating said stator (4) and rotor (5), said housing being in fluid communication with the pump (2) to circulate the pumped fluid in said housing in order to cool said motor (3), said pump assembly (1) being characterized in that it comprises a removable seal jacket (12) made of an electrically non-conductive material, and in that it is designed to switch from a test configuration, in which said seal jacket (12) is removably mounted within the casing (6), in the gap (E), to isolate said stator (4) from said pumped fluid, to a normal operating configuration, for pumping electrically non-conductive fluids, wherein the seal jacket (12) is removed from the casing (6), so as to form a wet-stator arrangement enabling the pumped fluid to come into contact with the stator (4).