When purchasing stainless steel multi-layer sintered mesh, you need to consider multiple factors to ensure that it can meet the specific application requirements. Here are some key considerations:
Material selection
The material of stainless steel multi-layer sintered mesh directly affects its performance and applicable environment. Common stainless steel materials include 304, 316, 316L, etc. 304 stainless steel is suitable for general corrosive environments, while 316 and 316L stainless steel have higher corrosion resistance and are suitable for strong acid, strong alkali or high chlorine environments. Choose the right material according to the specific working conditions to ensure its durability and stability.
Filtration accuracy
Filtration accuracy is one of the core parameters for selecting stainless steel multi-layer sintered mesh. Different application scenarios have different requirements for filtration accuracy. For example, the food and pharmaceutical industries usually require high-precision filtration (a few microns), while the chemical or water treatment industries may have lower accuracy requirements. Choose the appropriate pore size range according to actual needs to ensure the filtration effect.
Working temperature
The temperature resistance of stainless steel multi-layer sintered mesh varies depending on the material and the processing process. When used in high temperature environments, materials and structures that can withstand high temperatures must be selected to avoid deformation or performance degradation due to excessive temperatures. At the same time, the impact of temperature fluctuations on the material must also be considered.
Corrosion resistance
According to the chemical properties of the filter medium, select stainless steel materials with corresponding corrosion resistance. For example, in strong acid, strong alkali or high salt environments, 316L stainless steel is a better choice. In addition, the oxidizing and reducing properties of the medium must also be considered to ensure the long-term stability of the material.
Mechanical strength
Stainless steel multi-layer sintered mesh must have sufficient mechanical strength to withstand working pressure, shock, and vibration. In high pressure or high flow environments, select sintered mesh with appropriate thickness and number of layers to ensure its pressure resistance and durability.
Porosity and air permeability
Porosity and air permeability directly affect filtration efficiency and flow performance. High porosity can increase flow, but may reduce filtration accuracy; low porosity is the opposite. Balance porosity and filtration accuracy according to specific needs to ensure efficient filtration and low resistance.
Size and shape
Stainless steel multilayer sintered mesh can be customized into different shapes and sizes according to needs, such as filter cartridges, filter discs, filter plates, etc. When purchasing, it is necessary to select the appropriate size and shape according to the equipment interface and installation space to ensure compatibility and installation convenience.
Cleaning and maintenance
Choosing a stainless steel multilayer sintered mesh that is easy to clean and regenerate can reduce maintenance costs and extend service life. Sintered mesh with a smooth surface and uniform pores is easier to restore performance through backwashing or ultrasonic cleaning.
Supplier qualification and quality certification
Choose a qualified and reputable supplier to ensure product quality and after-sales service. Check whether the supplier has relevant industry certifications (such as ISO, FDA, etc.) and understand its production process and quality control capabilities.
Cost and cost-effectiveness
On the premise of meeting performance requirements, comprehensively consider price and long-term use costs. Although high-quality stainless steel multilayer sintered mesh has a higher initial cost, its long life and low maintenance cost may be more economical.
