Inspection Standards for Liquid Filter Bags

Filtration Precision

Filtration precision of a liquid filter bag refers to the size of the smallest particles that the filter bag can remove under specific conditions. Common filtration precision ratings include 1 μm, 5 μm, 10 μm, 25 μm, 50 μm, 75 μm, 100 μm, etc.

Material

The material of a liquid filter bag should be selected based on the chemical properties, temperature, pressure, and other conditions of the filtration medium. Common materials include polyester fiber, polypropylene fiber, nylon mesh, stainless steel wire mesh, etc.

Size

The size of a liquid filter bag is generally determined by the dimensions of the filtration equipment. Common size specifications include No. 1, No. 2, No. 3, No. 4, No. 5, etc.

Service Life

The service life of a liquid bag filter generally depends on its material and the characteristics of the filtration medium. It can range from a few hours to several months.

Flow Rate

The flow rate of a liquid filter bag depends on the size of the filter bag and the properties of the filtration medium. Common flow rates include 10 tons/hour, 20 tons/hour, 50 tons/hour, etc.

Testing Items

High-temperature resistance test, filtration precision test, low-temperature resistance test, material test, strength test, air permeability test, filtration performance test, quantitative test, cleanliness test, quality test, combustion performance test, tensile strength test, aging test, flame retardancy test, service life evaluation, etc.: These are all testing items included in the filter bag test report to ensure the quality and performance of the filter bag meet standards.

National Standards

For example, GB/T 14233.1-2008 "Industrial liquid filtration devices - Liquid filter bags - Part 1: Classification, structure and dimensions of liquid filter bags" specifies basic requirements such as classification, structure, and dimensions of liquid filter bags.

In summary, the inspection standards for liquid filter bags cover multiple aspects from basic physical properties to testing methods, ensuring that the performance and quality of the filter bags meet the requirements of specific applications.