test machine for tube inner pressure, including destineea speed steel tubes by means of a liquid under high pressure

摘要

In a machine for testing tubes by the application of high pressure liquid to its interior, one tube end is secured to a first cap connected to a stationary sealing head by a permanent seal. The other tube is secured to a second cap in turn connected to a ram mounted in a second sealing head displaceable longitudinally of the tube being tested. The first cap has a liquid inlet connectable to the high pressure supply, and two back pressure valves of opposite opening directions.