FIELD: test equipment.
SUBSTANCE: invention relates to test equipment, in particular, to installations for resource tests of aircraft fuselages with loads created by excess pressure of compressed air. Device comprising a hydraulic lock having the top and the bottom tanks interconnected via a pipeline is added with a valve, a chamber formed by the valve cover and a flexible membrane, the valve lock is connected with the flexible membrane by a rod, and the inner volume of the chamber is connected to inlets of the valve itself and the hydraulic lock.
EFFECT: technical result is the reduction of structural dimensions of the device for protection of objects of testing against exceeds of the specified value of internal excessive gas pressure, simplified readjustment of the device for various pressure values.
1 cl, 1 dwg
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