Working Principle and Selection of Stainless

Q1: What is the working principle of stainless steel filters?

A1: The core working principle is physical filtration. When the fluid passes through the stainless steel filter element (such as filter mesh, filter plate), the impurities in the fluid are trapped by the filter element due to their larger particle size than the filter hole, while the clean fluid passes through the filter element, thereby achieving the purpose of separating impurities and fluid.

Q2: What are the common types of stainless steel filters?

A2: Common types include basket filters, bag filters, cartridge filters, self-cleaning filters, etc. Basket filters are suitable for coarse filtration of large particle impurities; bag filters have high filtration precision and are suitable for fine filtration; cartridge filters are compact in structure and suitable for small flow fine filtration; self-cleaning filters can automatically clean the filter element without stopping the machine, suitable for continuous operation scenarios.

Q3: What factors should be considered when selecting stainless steel filters?

A3: 1. Filtration requirements-determine the filter precision (micron level) according to the size of the impurities to be removed; 2. Fluid characteristics-consider the corrosiveness, temperature, pressure, and viscosity of the fluid; 3. Flow rate-select the appropriate filter size according to the required processing flow; 4. Installation environment-consider the installation space and connection method.

Q4: What material of stainless steel is suitable for the filter element?

A4: 304 and 316 stainless steel are the most common choices. 304 stainless steel filter elements are suitable for filtering neutral fluids (such as water, air) and non-corrosive impurities; 316 stainless steel filter elements have better corrosion resistance, suitable for filtering acidic, alkaline, and salt-containing corrosive fluids (such as chemical reagents, seawater).

Q5: How to maintain stainless steel filters?

A5: 1. Regularly check the pressure difference-when the pressure difference between the inlet and outlet exceeds the specified value, it indicates that the filter element is clogged and needs to be cleaned or replaced; 2. Clean the filter element-use a soft brush and neutral detergent to clean, or backwash with clean water; 3. Check the filter body for corrosion and leakage; 4. Replace the sealing ring regularly to ensure the sealing performance.