Diaphragm Gas Permeability Tester

The diaphragm permeability tester measures the rate at which gas permeates through diaphragm materials using the differential pressure method. A stable pressure difference is created on both sides of the sample, allowing gas to permeate from the high-pressure side to the low-pressure side. Sensors record pressure changes to calculate the permeability coefficient. It is used to test the gas permeability of battery separators and packaging materials, ensuring product quality control.
Selection
When selecting, consider the type and thickness range of the test material, ensuring the instrument's measurement range covers the application requirements. Pay attention to testing accuracy and repeatability indicators, ensuring compatibility with standard methods. Evaluate temperature and humidity control capabilities to ensure stable testing conditions. Check sensor sensitivity and calibration cycles to guarantee data reliability. Choose an appropriate testing chamber based on sample dimensions.
Measurement method

Terms

Standards

Instruments

Measurement range 0~ 1000ml/min, pressure difference 0.1~ 2.0kpa, stainless steel end cap and pure copper valve anti-corrosion structure, built-in fixture to avoid rubber pad peeling, suitable for a variety of materials Air Permeability accurate test.

$ 1200.00

Suitable for 1 × 10-2 - 1 × 102um/(Pa. S) Air Permeability Range, Measurement accuracy of +/- 1ml (< 100ml), 304 stainless steel fixture and silicone sealing to ensure long-term corrosion resistance and sealing, support multi-gear measurement.

$ 1009.00

Measurement range 0~ 1000ml/min or 0~ 17µm/(Pa · s), test area 10.0 +/- 0.05cm ², differential pressure accuracy +/- 0.01kPa, clamp ring coaxiality less than 0.05mm, suitable for medium Air Permeability paper testing.

$ 961.00

With imported corrosion-resistant rubber diaphragm, the ultimate pressure reaches 0.085MPa, the pumping speed is 30L/min, and the noise is lower than 50dB. It can operate continuously and stably for 24 hours without lubricating oil.

$ 314.00

With imported corrosion-resistant rubber diaphragm, the pumping speed can reach 30L/min and the noise is lower than 50dB, which can operate continuously and stably in the oil-free state and is easy to maintain.

$ 391.00

The test area is 30cm ², suitable for self-supporting and non-self-supporting coating testing, and the permeability of water vapor or Miscellaneous gaseous substances to the film can be determined by the wet Cup method or the dry Cup method.

$ 135.00

The test area is 50cm ², which supports two test modes of wet Cup method and dry Cup method, which can measure the permeability of water vapor and Miscellaneous gaseous substances to the film, and is suitable for coating performance evaluation under different environment conditions.

$ 196.00

PTFE material pump head and composite diaphragm, strong corrosion resistance, maximum Flow rate 65L/min, Ultimate vacuum degree 15-20mbar, oil-free design maintenance-free, low noise operation safe and stable.

$ 1756.00

Test area of 10cm ², in line with a number of international standards, support self-supporting and non-self-supporting coating testing, can be measured by wet Cup method and dry Cup method of water vapor permeability, suitable for different environmental conditions.

$ 119.00

PTFE material pump head and composite diaphragm, strong corrosion resistance, maximum Flow rate 35L/min, Ultimate vacuum degree 15-20mbar, no pollution and maintenance, low noise operation, suitable for corrosion environment.

$ 1066.00

Using PTFE pump head and composite diaphragm, strong corrosion resistance, maximum Flow rate 35L/min, Ultimate vacuum degree 15-20mbar, no pollution and maintenance, low noise operation stability.

$ 1085.00

Designed for specific types of thickness Gauges, it provides accurate Adjustment and adopts standard diaphragm structure to ensure accurate transmission of thickness measuring instruments and improve the repeatability of test results.

$ 110.00

Measurement range 0~ 1000ml/min, test area 10cm ², test area pressure difference 1kPa, suitable for a variety of industrial paper ventilation performance detection.

$ 935.00

Using electromagnetic motor and diaphragm sealing Chamber, the maximum Vacuum Level is 0.08Mpa, full Teflon material is resistant to strong chemical corrosion, free of daily maintenance and long service life, suitable for positive and negative pressure dual-use scenarios.

$ 146.00

The diaphragm sealing Chamber is used to ensure the one-way flow of gas, the maximum Vacuum Level is 0.08Mpa, the pumping rate is 35L/min, and it has the function of positive and negative pressure dual-use. The full Teflon material can resist strong chemical corrosion, free of daily maintenance and long service life.

$ 240.00

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