nstructions for Correct Use
Great Wall depth filter sheets need to be carefully handled when inserting them into the plate and frame filter. Avoid banging, bending, and rubbing the sheets. Do not use damaged depth filter sheets.
Inserting
The depth filter sheets have a rough side and a smooth side. The rough side is the feed side, and the smooth side is the filtrate side. Always ensure that the filtrate side is in contact with the clear filtrate plate when inserting the sheets.
Filter Preparation
Before the first filtration, we recommend pre-rinsing the closed filter with 1.23 gal/ft² (50 L/m²) of water at 1.25 times the flow rate prior to the first filtration. This usually needs a rinsing time of 10 – 20 minutes. The washing should continue until the water passes through the filter is clear and free of impurities. Test the leakage of the entire filter at maximum operating pressure.
High-proof alcoholic solutions and products that cannot be rinsed with water should be circulated with the product. Discard the rinsing solution after rinsing.
