Bag filters and steel filters are two common filter devices, which have significant differences in material, structure, filtration principle, and applicable scenarios. The following is a detailed analysis of the differences between the two:

1、 Material and Structure

Bag filter:

Also known as an integrated filter, it uses a foldable imported filter membrane and is usually made of polypropylene material. It does not contain adhesives or other chemicals, ensuring that the sample is not contaminated.

The filter structure does not require a filter cartridge device, which reduces the risk of splashing and leakage compared to traditional filtration methods, and is easy to install.The filter has different pore sizes to choose from and can be sterilized under high pressure.

Steel filter:

The main reason is that the materials used are different, mostly made of stainless steel such as 304 and 316.Compared with capsule filters, its structure and performance have not changed much, but the selection of materials gives it higher corrosion resistance and durability.

2、 Filtering principle

Bag filter:

By filtering through filter media and utilizing the large filtration surface area of foldable membranes, efficient filtration can be achieved.Suitable for filtering larger volume solutions, capable of removing large pollutants.

Steel filter:

The filtering principle is similar to bag filters, but due to differences in material and structure, it may exhibit different filtering effects in certain specific application scenarios.

3、 Filtering effect

Bag filter:

The filtration effect is relatively good, but the specific effect still needs to be determined based on the type and pore size of the selected filter membrane.

Some models of bag filters, such as the RFPT series, are suitable for filtering solvents and corrosive solutions, while the RFPP series is suitable for pre filters such as reverse osmosis and ultrafiltration.

Steel filter:

The filtering effect is also influenced by the material, structure, and application scenario.Due to its excellent material, it can usually maintain stable filtering performance in harsh environments.

4、 Applicable scenarios

Bag filter:

Widely used in various industrial fields, such as chemical industry, biomedicine, food industry, laboratories, etc.Especially suitable for occasions that require filtration of large volume solutions, such as ink, dye, developer solution, etc.

Steel filter:

It is also suitable for various industrial fields, but due to its material characteristics, it is more suitable for occasions with higher requirements for corrosion resistance and durability.

Fields that require long-term stable operation and high material requirements for equipment, such as water treatment, chemical production, and food processing.

Above, there are significant differences between bag filters and steel filters in terms of material, structure, filtration principle, and applicable scenarios. When selecting, the appropriate filter type should be chosen based on specific application requirements and scenarios.