Product principle
       Place the pre-treated sample between the upper and lower test chambers, clamp, open the test lower chamber valve, vacuum the low pressure chamber (lower chamber), and then evacuate the entire system. When the specified vacuum is reached, Close the test lower chamber valve, fill the high pressure chamber (upper chamber) with a certain pressure of test gas, so that a constant pressure difference (adjustable) is formed on both sides of the sample, and the gas is under the action of the differential pressure gradient from the high pressure side. The low-pressure side is infiltrated, and the gas permeability of the sample is obtained by monitoring the pressure on the low-pressure side.


Product parameters

 Test range: 0.1~100,000cm3/m2·24h·0.1MPa (conventional)
Test temperature: ambient temperature
Optional test temperature: 15 ° C ~ 55 ° C (optional)
              Note: The thermostat control unit is sold separately.
Vacuum resolution: 0.1Pa
True air: <20Pa
Sample size: Φ80mm
Number of samples: 3 pieces
Test gas: O2, N2, CO2 and other gases (air source user-supplied)
Air source pressure: 0.4MPa~0.6MPa
Interface size: Φ6mm polyurethane tube
Main unit size: 670mm (L) × 490mm (B) × 350mm (H)
Power source: AC 220V 50Hz
Net weight: 57kg
Standards: GB 1038, ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-A, YBB 00082003