FIELD: testing equipment. SUBSTANCE: gear testing leak-proofness of aggregates located on outer surface of space apparatus has cover with sealing and pressure elements mounted on outer surface of space apparatus to form closed volume with it which houses tested AGGREGATES, pipe union located on outer side of cover, leak detector connected to closed volume by means of pipe-line via pipe union, system feeding testing gas manufactured in the form of desk of pneumatic filling with pipe-lines, connection pipe-line to aggregates, two-way pipe- unions mounted on cover. Outer ends of pipe unions are coupled to pipe-lines of desk and inner ones - to connection pipe-lines. In agreement with first version two equivalent bellows closed on one end and open on the other one are mounted on outer side of cover and are joined to closed volume with their open ends. In accordance with second version pneumatic cylinder with piston is mounted on outer side of cover which inlet and outlet are connected to closed volume. EFFECT: enhanced testing efficiency of gear. 2 cl, 2 dwg
