DEVICE FOR HYDRAULIC COMPRESSION TESTS FOR A HOLLOW PRODUCT Russian patent published in 2018 - IPC G01N3/12 

FIELD: testing equipment.

SUBSTANCE: invention relates to testing technique and can be used for hydraulic testing of hollow articles (tanks, pipelines, etc.) with internal pressure under static and / or cyclic loading conditions. Device comprises a container with working fluid, connected by discharge line, including an electric pump and a valve, with a hollow product under test, equipped with a drain valve. Device further comprises a hydraulic test machine, on the lower movable gripper of which the hydraulic cylinder body is located, and the end of the hydraulic cylinder rod is fixed in the upper gripper of the fixed traverse of the force frame. Working cavity of the hydraulic cylinder is connected to the discharge line at the outlet of the valve, and in the internal cavity of the tested product there is a free-flowing, non-porous aggregate.

EFFECT: improving the accuracy of high pressure regulation in the cyclic mode of its change during hydraulic testing of hollow products with large internal volume.

1 cl, 1 dwg