About the integrity inspection of the pleated filter element

The pleated filter element is a relatively fine filter element in the pleated filter element series. It belongs to the filter element of the sterilization grade and high hygiene standard. The range of its use is relatively high, so it needs to be inspected intermittently before leaving the factory. The PES pleated filter elements are all in line with the needs of customers. The following is an introduction to the integrity inspection of the lower pleated filter elements. The integrity inspection of the filter element is an experiment used to detect the parameters such as the scattered flow and the bubble point of the filter element. The experiment has the advantages of convenient detection and good reliability. The hydrophilic membrane filter element is tested with pure water, and the hydrophobic membrane filter element is tested with 60% IPA. Before using the automatic integrity tester, please confirm the accuracy of the integrity tester, check the air tightness of the filter, and check whether the intake pressure can meet the requirements (requires the intake pressure to be set at 5-7bar), check The temperature was set at 20-25°C. Components: filter, pressure gauge, combined joint, clean air source, liquid pump, water tank (solvent tank), pipe fittings, etc. Operation steps Wet process (the parameters cited below are the setting parameters of the hydrophilic membrane 0.2um filter element as an example) to complete the connection; close the valve, open the valve and the exhaust valve, open the water pump, and dispatch the valve 4. After the water comes out of the exhaust valve Close the exhaust valve and initially flush the filter element intermittently. Open the valve well, flush quickly for 5 to 10 seconds, adjust the valve, control the pressure of the pressure gauge 1 to show about P1u003d4-4.5bar, according to the flow rate of more than 5L/min per 10The larger the flow rate and the longer the time, the easier it is to wet the filter element, and the more accurate the inspection effect is.
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