Liquid filter bags are a common type of filtering element, used to remove solid particles, colloids and other impurities in liquids. The following is the relevant introduction:

Materials:

- Polyester: It has good corrosion resistance and wear resistance, relatively high strength, relatively low cost and is widely used.
- Polypropylene: It has excellent acid and alkali resistance, high chemical stability, is lightweight and has good air permeability, and is suitable for filtering corrosive liquids.
- Nylon: It has high strength and wear resistance, precise pore size, a smooth surface, is not easily clogged and can be repeatedly cleaned and used. It is used to intercept large-diameter particles.
- Polytetrafluoroethylene: It has excellent chemical stability and corrosion resistance and is suitable for harsh chemical environments.

Structural Features:

- Ring Mouth: There are stainless steel ring mouths, PP ring mouths and PE plastic ring mouths, etc. Among them, the stainless steel ring mouth has high strength and good corrosion resistance; the PP ring mouth has good flexibility and chemical resistance.
- Bag Bottom and Bag Top: There are various designs, such as flat bottom, round bottom, pointed bottom, etc., to adapt to different filtering equipment and filtering requirements.

Advantages:

- Prevention of Fiber Separation: The filtrate filtration surface is specially singed to prevent fiber separation from polluting the filtrate and also avoid excessive clogging of the filter holes caused by traditional roller pressing treatment and thus shorten the service life of the filter bag.
- No Silicone Oil Pollution: It is produced by high-speed industrial sewing machines without using silicone oil for cooling, avoiding the problem of silicone oil pollution.
- Good Sealing Performance: After improvement, there are no protrusions and pinholes at the suture of the bag mouth that cause side leakage. Some filter bags adopt advanced hot-melt bonding technology to ensure the bonding strength and completely eliminate leakage.

Filtering Precision:
The filtering precision ranges from 0.5 microns to 300 microns, which can meet the requirements of different industries for liquid filtration.

Application Fields:
It is suitable for liquid filtration in industries such as electroplating, paint, ink, coating, food, chemical engineering, grain and oil, etc.

Service Life:
Its service life is affected by various factors such as the nature of the filtering medium, filtering pressure and temperature. Generally, under normal use conditions, non-woven filter bags of good quality can be used for about 3 to 6 months.

Maintenance:
Regular cleaning can extend the service life. The cleaning methods and frequencies depend on the filtering medium and the use environment. For example, after filtering substances with high viscosity and strong corrosiveness, it may be necessary to replace them in time.