
Pressure Flange Seal For Liquid Filter Pressure Vessel. When a leak occurs between pressure flanges and the arrangement cannot be successfully sealed, it is necessary to change the sealing design. This article explains a successful modification done to the lid and body flanges of a vertical pressure leaf filter used to remove particulate from a liquid stream. It incorporates a ‘tongue and groove’ sealing arrangement, with the ‘tongue’ in the lid flange and the recess in the filter body flange.
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