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How to Select the Type of Food Filter Bag

2022-12-23 Page view : 12 views

The food filter bags are produced in a very clean and dust-free workshop. Our production staff wear dust-free clothes and gloves to ensure the cleanliness of the filter bags. Bacterial content of filter bag, fiber shedding, filtering speed, etc. So, how should food filter bags be selected?

First of all, the food filter bag should be pricked with imported highly purified filament fiber materials. The surface should be specially singed to effectively prevent the fiber from falling off and polluting the filtrate. The fluffy and uniform three-dimensional filter layer has a very high capture capacity for solid and colloidal particles. The high-strength long fiber makes the filter bag’s filtering efficiency stable and its service life longer.

Secondly, the material of the filter bag is high temperature resistant, acid and alkali resistant. For example, the common food filter bags are polytetrafluoroethylene (PTFE), polyester (PE), polypropylene (PP), nylon monofilament, and multifilament (NMO), which can meet the filtering accuracy from 0.5 to 1000 microns.

In addition to the above, the selection of food filter bags can also be considered from the following aspects:

1. Pressure source, working flow, working temperature, design pressure, design temperature, allowable pressure drop, filtering method, required filtering material, required interface method and material, and other required pressure gauges, valves, tees, side pipes, sterilization methods, etc.

2. Medium name, impurity name, impurity content, medium viscosity, impurity type (hard particles, soft particles, others), medium temperature, filtering accuracy required by users for food filter bags, etc.

These are all factors to be considered when selecting food filter bags, because they will affect the filtering effect. Therefore, everyone should be cautious. In addition to the above, we also need to know that the common materials of food filter bags are PE, PP, nylon, etc. The chemical compatibility of PE filter bags and PP filter bags is different: the filter bags are made of nylon, polyester, polypropylene, aramid, polytetrafluoroethylene, etc.