What should be paid attention to before the folding filter element leaves the factory?

The foldable filter element is a kind of fine water filter element with high hygiene standards, so there are many aspects that need to be checked, especially it has to be tested before leaving the factory. This test method guarantees the quality of the foldable filter element and makes customers more Peace of mind. The pleated filter element is a finer water filter element in the filter element. It is a sterile-grade high-hygienic standard filter element. The scope of its application is relatively high, so it is necessary to stop the integrity test before leaving the factory. In order to ensure that the folded filter element can meet the actual application requirements of customers, it is necessary to do a goodness test on the factory folded filter element. The integrity test of the pleated filter element is an experiment used to detect the diffusion flow, bubble point and other parameters 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 inlet pressure can reach the request. The requested inlet pressure is usually set at 5-7bar, and the test temperature Set to 20-25°C. Components: filter, pressure gauge, combined joint, clean air source, liquid pump, water tank (solvent tank), pipe fittings, etc. The wet process completes the connection. Close the valve, open the valve and exhaust valve, turn on the water pump, regulating valve and other exhaust valves, then close the exhaust valve, and start the filter element to stop flushing and damp. Open the valve completely, quickly flush for 5-10 seconds, adjust the valve, control the pressure of the pressure gauge 1 to be about P1u003d4-4.5bar, according to the flow rate of more than 5L/min per 10 seconds, flush the wet filter element for more than 10 minutes; The greater the flow rate and the longer the flushing time, the easier it is to wet the filter element, and the more accurate the test result will be.

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