How to open the top cover of the filter after the security filter is filtered

The security filter is a kind of multi-purpose filter equipment with novel structure, small size, simple and sensitive operation, energy saving, high efficiency, airtight work and strong applicability. The liquid flows into the filter bag from the side inlet pipe of the filter shell, and the filter bag itself is installed in the reinforced mesh basket. The filter bag can be blocked by the filter bag when the liquid penetrates the filter bag of the required fineness grade. If the security filter is used in front of the reverse osmosis, it is generally called a security filter. Porous membrane filter, the filter accuracy at this time is generally below 1 micron, mainly to remove the impurities of bacteria passing through. The filter element of the security filter is a wire-wound filter element, a folded filter element and a melt-blown filter element. Since the melt-blown filter element is cheap, it can be replaced directly in the water treatment, and the cost is small. Correctly open the upper cover of the filter machine after filtering by the security filter: 1. Close the input valve; when there is pressure at the outlet, close the output valve. 2. After confirming that the pipeline connected to the exhaust valve has been connected to a safe place or suction port (especially when filtering toxic and corrosive liquids), open the exhaust valve to prevent damage and pollution caused by the liquid environment. 3. Check the pressure gauge to make sure that the internal pressure is 0. At this moment, the bag filter has been separated by the pipeline system. 4. If there is a secretion valve, confirm that the secretion liquid is connected to the recovery place, and open the secretion valve; when the remaining liquid in the fine bag filter is exhausted through the exhaust valve, the method of closing the secretion pressure is completed. 5. Unscrew the upper cover and hang it. The cap, lift the upper cover, the multi-bag filter needs to be turned from a certain point of view.
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