Containment isolation test fixture for leak rate testing

An integrated system, comprising:

• a nuclear reactor;
• and
• a containment isolation system including;
• a containment isolation test valve, including:
• a test port configured to receive a pressurizing fluid, and
• a test port plug configured to be rotated to seal the test port;
• and
• a containment isolation valve downstream of the containment isolation test valve configured to restrict fluid flow through a disc and seat assembly disposed within the containment isolation valve.

An isolation test valve, including:

• a body, having a first test port configured to receive a pressurizing fluid,
• a first test port plug configured to be rotated to seal the first test port,
• a disc disposed within the body, the disc configured to receive an operating tool and to be rotated by the operating tool before and after performing isolation test operations, the disc being configured to be rotated along with the operating tool,
• a cover configured to be coupled to the body, the cover including a second test port configured to receive the pressurizing fluid, and a second test port plug configured to be rotated to seal the second test port,
• a first seal disposed between the cover and the body, the first seal disposed adjacent to a first side of the second test port, and
• a second seal disposed between the cover and the body, the second seal disposed adjacent to a second side of the second test port, the second side of the second test port being opposite the first side of the second test port.