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How to judge that the PP folded filter element needs to be replaced? -Water Treatment Technology Encyclopedia

by:Lvyuan      2021-02-22
Home-Technical Qu0026A- u003cbru003e u003cbru003eHow to judge that the PP pleated filter element needs to be replaced? u003cbru003e u003cbru003e u003cbru003ePP pleated filter element is the core element of the precision filter, its use affects the filtering effect of the entire filter, so we must always understand its use, replace the filter element in time, then how to judge the PP pleated filter element needs to be replaced Up? Let's introduce Xiaodie below. u003cbru003e u003cbru003e When the filter element is blocked by particles, the filter element should be replaced. What is congestion? The solution flow rate drops and the pressure in the filter cartridge increases. If the pressure gauge shows that the water pressure is greater than 25 psi, the particles will be pressed against the filter line by the pressure, and the filter will lose the filtering effect. At this time, it is blocked. At this time, the filter element should be replaced immediately. If there is no pressure gauge on the filter device, when particles are blocked, the surface of the filter element will change color and the water output will decrease. The filter element should be replaced immediately. u003cbru003e u003cbru003e Use of PP pleated filter element u003cbru003e u003cbru003e 1. Correct installation and operation of filter element u003cbru003e u003cbru003e 1 Moisten the O-ring with lubricating oil or water, slowly insert the filter element upside down into the bottom of the filter, so that the filter element is aligned with the groove. u003cbru003e u003cbru003e 2 After the folded filter element is fully inserted, press the top fin of the filter element with a stainless steel orifice plate. The screw does not need to be too tight to prevent deformation due to force. u003cbru003e u003cbru003e 3 Because the pleated filter element itself has been sterilized by high temperature, you cannot touch the filter element with your hands. u003cbru003e u003cbru003e 4 Rinse the filter element as much as possible for half an hour before use. u003cbru003e u003cbru003e 5 When turning the valve on or off, you need to turn the valve slightly, do not open or close it all at once, so as not to damage the filter element when the pressure is high. u003cbru003e u003cbru003e The disinfection method of two PP folded filter element u003cbru003e u003cbru003e 1. Disinfect with a disinfection cabinet, take the filter element out of the plastic bag, and place it in the disinfection cabinet at 121°C for 30 minutes. u003cbru003e u003cbru003e 2. Without disassembly and disinfection, the filter element is installed in the filter according to the correct method (the fixed plate and the filter element are separated by 0.5mm). u003cbru003e u003cbru003e Three PP folding filter element in and out flow direction identification and cleaning u003cbru003e u003cbru003e The pleated filter element is generally an external pressure type, and the water enters and exits from the outside of the filter element, and the positive and negative flushing can be carried out in different directions. u003cbru003e u003cbru003e The use and cleaning of the PP pleated filter element cannot be used without washing. When the design flow rate is met (the pressure gauge difference before and after the flow rate drops significantly is 0.1MPa), please turn off the filter and remove the filter element from the filter after stopping the machine, and rinse with water Surface dirt, then soak in 4% hydrochloric acid for 24 hours, then soak in 4% sodium hydroxide for 24 hours, and then rinse with water (remove two O-rings during soaking to prevent expansion). u003cbru003e u003cbru003e Four, storage method u003cbru003e u003cbru003e 1. Soak the filter element in disinfectant, and fill the stainless steel housing of the filter with disinfectant. u003cbru003e u003cbru003e 2. Take out the filter element and dry it (36 hours at 50℃). u003cbru003e u003cbru003e 3. Take out the filter element and dry it in a dry climate. u003cbru003e u003cbru003e 4. Please do not use plastic bags to pack the undried filter element to prevent mold. u003cbru003e For more information about replacement of PP folding filter element, please contact us!
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