Kazakhstan: Progress MS-32 spacecraft vacuum tests held at Baikonur

At the site of the Baikonur cosmodrome, specialists have started one of the key stages of pre-launch preparation of the Progress MS — 32 transport spacecraft-conducting pneumatic vacuum tests. This process serves as the basis for confirming the technical readiness of the spacecraft for operation in an orbital flight and includes checking the tightness of all critical systems.

The tests are conducted in a special sealed chamber that simulates the rarefied environment of space. In vacuum conditions, the ship is exposed to a helium-air mixture fed into the pneumatic hydraulic system under pressure. The essence of the procedure is to check the integrity of pipelines, valves and connections through which working fluids and gases are transported in flight. Helium is used as an indicator, as it is able to penetrate through the smallest leaks and be detected using highly sensitive sensors.

Special attention is paid to air-hydraulic lines — one of the key elements of the ship's design that ensure stable operation of internal systems, including pressure control, fuel supply and atmospheric monitoring between modules. At the same time, the tightness of the pressurized compartments is monitored, which are required to maintain a stable habitat for the crew and cargo while in orbit.

The Progress MS-32 tests comply with the approved space launch regulations and represent a mandatory stage in the process of allowing the spacecraft to launch. Based on the results of the procedures, engineers make a conclusion about the suitability of all systems for further operation. Checking the tightness and resistance to loads in simulated outer space allows you to ensure the safety of the upcoming mission.

Progress series ships are traditionally used to deliver cargo to the International Space Station. They play a key role in ensuring the life of the crew, transporting fuel, equipment, water and scientific equipment. Each launch requires preliminary tests, the accuracy of which directly affects the reliability of the entire mission. In the case of Progress MS-32, the stage of air-vacuum tests is an important technical milestone on the way to its launch into orbit.