This machine automatically performs a blockage test followed by a hydraulic pressure decay leak test on three parts at a time.

One side of the machine can be loaded while the other is testing. The operator loads three components into the location fixture, closing the guard then initiates an automatic cycle to clamp, seal and test.

The hoses are filled with fluid by a low pressure high flow pump to ensure all the air is removed. A booster pump then raises the pressure to the test pressure. This pressure is monitored by three transducers for the required test time. Fluid is then flushed from the hoses by purging with compressed air. Parts which pass are stamped with a pass mark and released automatically.