Compact reactor with horizontal steam generators and pressurizer

A compact pressurized water nuclear reactor, comprising:

• a cylindrical reactor pressure vessel oriented with its axis in the vertical direction and having at least one coolant nozzle on its side wall;
• at least one cylindrical steam generator oriented with its axis on the horizontal direction and having a coolant nozzle positioned directly on a first domed end surface;
• at least two reactor coolant pumps connected to the side wall of the reactor pressure;
• and
• at least one first nozzle connection between the at least one coolant nozzle of the reactor pressure vessel and the coolant nozzle of the at least one steam generator, the nozzle connection comprising:
• an annular steam generator inlet guide channel that separates the nozzle connection into an annular outer portion wherein primary coolant flows from the reactor pressure vessel into the steam generator and an inner portion wherein primary coolant flows back into the reactor pressure vessel from the steam generator after being cooled by circulation through tubes in the steam generator:
• two horizontally extending flow separator pipes each having a first end connected to the inner portion of the annular steam generator inlet guide channel and a second end connected to an inlet of one of the reactor coolant pumps.