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What is a hot melt filter bag?

January 30,2024

Hot melt filter bags are usually made of synthetic fibers using melt-blown nonwoven technology made of filter materials, such as polypropylene (PP), polyester (PE) or other thermoplastic fibers, is a filter for solid liquid separation of the main accessories, usually used in the industrial field. The characteristic of this filter bag is that it is produced by hot melt technology, that is, when the filter bag is manufactured, the fibers are bonded together by high temperature hot melt to form a strong, a non-porous filter structure. This technology helps to improve the durability and stability of the filter bag, which can effectively trap solid particles while maintaining the ability of fluid to pass through. This design makes hot melt filter bags popular in some industrial applications that require efficient filtration, such as water treatment, chemical, food, pharmaceutical, industrial liquid and gas filtration.

In general, the hot melt filter bag is a high performance filter suitable for industrial filtration applications with high requirements for filtration effect and durability.

How to choose hot melt filter bag?

Filtration performance: Consider the material to be filtered and determine the micron level of the filter bag. The aperture and structure of the filter bag will affect its filtration performance, ensuring that the selected product can effectively capture the target particles.

Material selection: Select the appropriate material to suit the specific liquid or gas environment. Common materials include polypropylene (PP), polyester (PE) and so on. Different materials have different chemical stability and high temperature resistance, and the selection is made according to the specific needs.

Temperature and chemical compatibility: Consider the temperature range of the working environment and the chemical properties of the filtered substance. Ensure that the selected hot melt filter bag can maintain stability under the corresponding temperature and chemical environment.

Flow requirements: Determine the flow requirements of the filtration system and select the appropriate size of the filter bag to meet these requirements. Consider the diameter and length of the filter bag, as well as the design flow rate of the filter medium.

Durability and life: Evaluate the durability and life of the filter bag, which is related to material quality and manufacturing process. Choose well-manufactured filter bags with high durability to reduce replacement frequency and maintenance costs.

Pressure loss: Consider the pressure loss of the filter bag during use, which is related to the resistance of the fluid passing through. Low pressure differential filter bags help improve system efficiency.

Volume and shape: Consider the shape and volume of the filter bag to ensure that it is suitable for the design of the filter equipment used.

Manufacturer reputation: Choose an experienced and reputable manufacturer, whose products are usually more reliable and meet the relevant quality standards.

When selecting a hot melt filter bag, it is best to consult a professional engineer or filter system supplier to ensure that the selected product meets the requirements of the specific application.

Application field:

Hot melt filter bags are widely used in industrial liquid handling, food and beverage production, pharmaceutical manufacturing, chemical and electronic industries. Due to its efficient filtration performance and reliable operation performance, hot melt filter bags are the product of choice for many critical filtration applications.

In short, the hot melt filter bag is a high-performance, multi-functional filter material, manufactured by melt-blowing technology, with micro-fiber structure, efficient filtration performance and wide application potential.

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