Cartridge filter pore size distribution tester

Whats/App: +86 156 1874 6768

Web: standard-groups.com

Standards

ISO 2942:2004 — Hydraulic transmission: Filter element — Verification of structural integrity and determination of initial bubble point

GB/T 14041.1-2007 — Hydraulic filter element Part 1: Structural integrity verification and initial bubble point determination

ISO 4003:1990 — Determination of void size for the bubble test of permeable sintered metal materials

GB/T 5249-2013 — Bubble test pore size of permeable sintered metal materials

JB/T 5089.3 — Test Methods for Internal Combustion Engine Paper Filter Element Oil Filter Part III

QC/T 794-2007 — Internal combustion engine industry standard: Filter paper test

CFS/T 8002-2011 — Oil filtration materials — Pore size testing

Features

1. Appearance material: stainless steel panel, aluminum alloy profile frame, laser engraved logo, not easy to fall off.

2、Display: it is resistive touch screen.

Operating system: the new version of Android system, as if the smart operation.

3. test data a key to lock, an interface to complete all operations, easy to get started, 10 minutes to get started.

4. stability: ergonomic design, the use of Germany Festo regulator control valve, improve the stability of the equipment in the operation of the pressure rise rate.

5、"Blow dry"function: reduce the loss of test liquid, shorten the drying time of the test piece, protect the test cartridge.

6、The test state of filter element and filter material can be switched by one key.

7、The machine itself is small and easy to move. Office personnel on the desk that can be used (placed in a position to avoid resonance).

8. temperature compensation: surface tension in the temperature range (18-37 ℃), the program can be self-compensating arithmetic, the test results are not affected by changes in external temperature.

9. built-in 6 kinds of filter material optional reference filtration accuracy.

10、Mass storage: test data can be saved in millions, convenient for querying at any time.

11. print mode: according to the test results, three modes of printing, and can query the historical data and printing at any time.

12. calibration function: comes with calibration port, you can calibrate the error value of the pressure sensor at any time.

Technical Parameters

Item	Parameter
Maximum Test Pressure	14.99 kPa
Pore Size Test Range	5–120 μm
Filter Thickness Range	0.1–3 mm (custom clamps required for thicker samples)
Clamp Outer Diameter	Φ(88 ± 1) mm
Clamp Inner Diameter	Φ(72 ± 0.2) mm
Sample Liquid Height	(12.5 ± 0.2) mm
Test Medium	Isopropyl alcohol, industrial ethanol, or other standard liquids
Applicable Sample Forms	Sheet filter material, filter cartridges, filter elements
Working Medium	Compressed air (external, powers automatic start/stop)
Pressure Adjustment Accuracy	5–50 Pa
Measured Filter Media Diameter	88 mm
Bubble Point Range	5.8–100 μm

Accessoriess

1. Test tank exterior material: 304 stainless steel alloy structure, aesthetically pleasing.

2. Rotation device: Manual operation.

3. Clamping device: Pneumatic clamping.

4. Liquid tank dimensions: 450mm x 300mm x 300mm (L x W x H)

5. Test filter element dimensions:

Maximum outer diameter: φ250mm; Minimum inner diameter: φ15mm; Minimum length: 50mm; Maximum length: 300mm

6. Non-standard liquid tanks can be customized according to customer requirements.

Test Procedures

1. Preparation Stage

Connect the device to a stable power supply and compressed air source (as per the working medium requirement).

Select the test liquid (e.g., isopropyl alcohol, industrial ethanol) matching the filter cartridge type, and soak thefilter cartridge samplecompletely in the liquid (ensure no air bubbles remain in the pores).

Install the soaked sample into the test chamber of the instrument, and ensure the chamber is sealed tightly.

2. Parameter Setting

Turn on the instrument, select the corresponding standard (e.g., ISO 2942-2004. GB/T 14041.1-2007) via the Android touch screen.

Set test parameters (e.g., pressure adjustment range, data recording interval) according to the sample specification and test requirements.

3. Test Operation

Start the pressure supply system (controlled by the German Festo regulator valve), and gradually increase the pressure in the test chamber.

Monitor the touch screen for thefirst bubble point pressure(recorded as the maximum pore size corresponding value).

Continue adjusting the pressure to collect data on bubble point distribution, and calculate theaverage pore size(for group bubble point tests).

For structural integrity testing: Check if the sample has cracks, seal defects, etc., during the pressure application process.

4. Post-Test Process

Stop the pressure supply, release the pressure in the test chamber slowly.

Remove the filter cartridge sample, clean the test chamber and liquid storage parts.

Export the test data (e.g., bubble point pressure, pore size values) via the instrument interface, and generate a test report.

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