how metal mesh filters can deliver benefits?
Flow Rate
One of the most significant advantages metal mesh has over most filter media used today is its ability to deliver an adequate flow rate. This is achievable as the wire diameter and mesh opening can be customized to perfectly match the contaminants you are filtering out, providing you with an enhanced level of filtration surface area.
This is especially true when a three-dimensional metal mesh filter is used. This is because three-dimensional mesh filters offset two layers of filter cloth, doubling the achievable flow rate.
Durability
While alloys such as Alloy 310, Inconel 600, Super duplex, Duplex, Hastelloy C22, and Titanium can be used to construct metal mesh filters, 300 series stainless steel is predominantly used. This helps create a filter that can withstand a wide range of impurities, pressure variations, and extreme temperatures without hindering the filter's accuracy.
In addition, stainless steel is a very pliable material, allowing the filter to be formed to fit your filter system and hold its shape after several uses.
Accuracy
The weaving process used to construct mesh filters is heavily monitored from start to finish. As a result, the pore openings of the filter are exact and uniform throughout the filter.
These precise pore opinings ensure that the end product, whether a filtered substance or a filter cake, is consistent and complies with industry standards.
Cleanability
As metal mesh features accurate pore openings, blinding and plugging are significantly reduced. This, combined with the enhanced flow rate, means system operators can clean the metal mesh easily.
These two properties allow the mesh filter to be backflushed and purged of any unwanted debris with minimal pressure.
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What Limitations Are Associated With Metal Mesh Filters?
The most notable limitation associated with metal mesh filters is the limitation as to how much metal mesh can be drawn when being formed into a filter. In fact, there is a ratio that must be followed to ensure the mesh is not drawn deeper than its diameter, damaging the mesh.
So, for example, a direct fuel injection automotive filter with a 5-inch diameter can only have a depth of five inches or less.
It's also important to know that a wide variety of metal mesh weave patterns can't be woven past 5 microns. This can be problematic when working with various gases, as gaseous particles can typically pass through 5-micron screens.