FIELD: testing facilities. SUBSTANCE: proposed test stand has large-size chamber and additional small-size chamber placed in communication with evacuation system and large-size chamber through additional vacuum pipelines. Test stand is furnished additionally with valves. One additional valve is installed in additional vacuum pipeline between large- size and small size-chambers. Second valve is installed in additional vacuum pipeline between small-size chamber and evacuation system. Test stand is also equipped with additional leakage measuring systems, additional main lines to deliver checking gas into systems of article to be checked installed in small-size chamber and connected through pressure- seal feed inlets to device for charging systems of articles to be checked with gas. EFFECT: reduced time and labour input at preparation of large-size articles, for instance, space vehicles, for full-scale tests. 1 dwg
