Korea Atomic Energy Research Institute(KAERI) has a Pyro-processing Integrated Inactive Demonstration facility(PRIDE) for the development of pyro-technology. In essence, the PRIDE enable integrated pyro-systems testing at engineering scales using depleted uranium or surrogates for depleted nuclear fuels. The PRIDE must maintain an inactive (argon) atmosphere due to the characteristics of processes that take place in it, such as electrochemical reduction, electrochemical refining, and electrochemical smelting. In concentrating impurities at the facility, oxygen and moisture must be lower than 50 ppm.
This paper describes renovation(manufacturing and installation) of the vent seal pot to prevent external situations, such as the variation of oxygen, moisture, due to changes in ambient conditions(barometric pressure, temperature) of external argon cell.