The pressure in the transition chamber of the Zvezda module on the ISS, where cracks were found, will be raised to 200 mm of mercury during the day, Roscosmos reported.
The state corporation noted that the compartment of the service module “Zvezda” is separated from the main volume of the ISS. The pressure there is maintained at the level of 150-200 mm of mercury. The work on increasing the pressure is planned and is not related to the multi-purpose laboratory module “Science”, where the pressure is normal.
Earlier, the station crew reported a drop in pressure in the chamber to 154 mm of mercury.
The general director of Roscosmos, Dmitry Rogozin, stated that the situation is predictable and is not related to the docking of the MLM “Science”.
Recall that an air leak on the ISS occurred in September 2019. In August-September 2020, the crew closed the hatches in the station modules twice to check their tightness. It turned out that the leak site is located in the intermediate chamber of the Russian module “Zvezda”.
In March, the cosmonauts completed repair and restoration work in the module, covering two cracks with sealant, but the pressure did not stop falling in the future.