The Fabrication Integrity and Initial Bubble Point Testing Apparatus for Filter Media is employed to ascertain the structural integrity of a filter element (by confirming the absence of bubbles) or to pinpoint the location of the largest pore in the filter element by identifying the initial bubble point.
Fabrication Integrity and First Bubble Point Test
Product Summary:
Assessment of fabrication integrity determines whether the filter element is suitable for further use or testing. The initial bubble point is determined by continuing the fabrication integrity test. It is important to note that the initial bubble point is not a functional attribute of the filter element; specifically, it cannot be used to predict filtration rating, efficiency, or retention capacity. Instead, it serves solely as informational.
Testing Mechanism:
The filter element under examination is manually installed in a designated clean test vessel filled with test liquid. The filter element is immersed in the test liquid and rotates automatically during the test. The air pressure is incrementally increased automatically throughout the test. The operator manually documents the corresponding pressure value and the location of the bubble point, which are then entered into a computer to automatically produce a test report.
Standard:
The fabrication integrity and first bubble point test rig for filter element meet the standard of ISO 2942-2004, GB/T 14041.1-2007.（Auto parts air tightness testing equipment）
Test object:
Filter element used in hydraulic fluid power systems.
Parameters:
|
Air compressor |
With filter and pressure regulator, adjustable up to 200 mbar |
|
Gas pressure sensor |
With an accuracy of ± 5% of the reading |
|
Liquid temperature sensor |
With an accuracy of ± 5 °C |
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