METHOD OF PRESSURE TESTING OF PRODUCTS Russian patent published in 2017 - IPC G01M3/06 

FIELD: testing equipment.

SUBSTANCE: tested product (13) is disposed in the main chamber (3) which is connected to the air cavity of the bubbler (5) and to the additional chamber (4). The reference product (9) is located in the main receiver (1), which is connected to the additional receiver (2) and to the bubbler tube (10). They fill the additional receiver (2), the additional chamber (4) and the bubbler (5) with the test gas from the gas source (15) to a predetermined initial pressure. The additional receiver (2), the additional chamber (4) and the bubbler (5) are disconnected from the gas source (15). Then, the main receiver (1) is disconnected from the additional receiver (2) and the main chamber (3) is disconnected from the additional chamber (4). The gas cavities of the bubbler (5) and its tubes (10) are disassembled. The main receiver (1) is connected to the bubbler tube (10), and the main chamber (3) - to the air cavity of the bubbler (5). The test gas passes from the main receiver (1) through the bubbler (5) tube (10) and the bubbler (5) fluid into the main chamber (3) in the form of gas bubbles. According to the number of bubbles passing through the bubbler (5) fluid, a conclusion is made about the leakage of the product (13).

EFFECT: increase in the reliability of verification.

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