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Comparing Filtration Media: Woven Wire Mesh vs. Wedge Wire Mesh

Release Time:

2023-10-14

BT products are widely used in feces dehydrator, petrochemical, environmental protection, machinery, construction, aerospace and other industries. At present, it has been exported to more than 20 countries. And it is trusted and praised by foreign users such as Europe, America, India, Southeast Asia, the Middle East, Africa, Japan, South Korea, etc. BT provide custom filtration products for the mining industry, oil industry, water treatment, breweries and various fields using wedge wire

What Is a Wedge Wire Filter Screen?

Wedge wire is a metallic filter media made up of v-shaped wires that are lined up against or wound around a supportive structure. They are then welded to bond them to the support structure.

The material being filtered will flow through slotted openings created by the wires. Most often, the surface facing the liquid is flat and smooth side while the v-shaped profile is on the bottom.

The support structure for this material is located opposite of the incoming material, which allows it to support the media while staying out of the path of flow. Flow direction can be either outside-to-inside or inside-to-outside and the filter is constructed accordingly.

Top Applications for Wedge Wire:

Filtering foods that have a high level of purity
Oil filtration
Brewing industry filtration (microbreweries and bottled teas)
Fertilizer industry
Solids from wastewater

Wedge Wire Dimensions:

Wedge wire is most commonly formed into cylinders or panels. Typical cylinder sizes and slot opening/micron ranges include:

Diameter: between 1” - 36”
Length - Virtually any length is possible
Micron Rating - As low as 30 micron or as large/open as necessary

Benefits of Wedge Wire:

- Resistance to clogging - The wide slot openings allow for less clogging due to fewer contact points while retaining an accurate opening size for efficient filtration.

- Precisely-sized slot openings - Specified open area or micron ratings are held with great accuracy due to the robust nature of the construction.

- Easy-to-clean surface - The smooth surface of the filter allows for easy and complete cleaning, whether through physical cake removal or by back-flushing

- low pressure drop - The wide but precise open area allows for good flow and an acceptable amount of pressure drop when these filters are part of a system.

- High strength - Wedge wire filter screens are a self-supporting structure and are inherently robust because of the cross-section of the wires, the sub-structure, and the fact that those items are welded together at many points throughout the fabrication.

- Service life - Wedge wire filter screens can be cleaned and reused indefinitely and the high-strength nature resists damage, leading to a filter media with a long service life.

What Is Woven Wire Mesh?

This type of filtration media can go by a few different names: Woven wire cloth, woven wire mesh, and woven wire fabric.

As its name implies, wire mesh is woven on a loom in a similar way to how cloth is woven. The wires are oriented in two directions: the warp direction and the schute direction.

Now, this material is typically manufactured into rolls and then either cut or formed into a desired shape and size.

The woven material creates a very stable but flexible filtration media that is almost like fabric or cloth. It can be made up of wires of different thicknesses or woven into different patterns depending upon the specified application.

But due to its labor-intensive production, woven wire mesh is generally used in more complex or technical applications.

Typical Applications for Woven Wire Mesh:

Sifting and sieving
Architectural applications
Pest control and livestock cages
Ventilation screens
Air and water filters
Wastewater
Filters for fuel, oil, and hydraulic systems

Benefits of Woven Wire Mesh:

- Customization: Because the media is woven, parameters such as opening size, specific weave type, and even the thickness of each wire can be customized. These changes will affect price and usage, but there are lots of ways to get the specific results you need.

-Ventilation: Woven wire mesh allows for steady, uninterrupted flow in a ventilation application. Air can be allowed to pass in and out of an area or it can be used to keep impurities out of the vessel that needs ventilation. It can also act as pre-filtration, which will provide good flow while helping the life of finer filtration that is located downstream.

- Precise openings/Accuracy: This material is woven on very precise high-speed looms and high-quality wires with tight dimensional tolerances are used. This leads to pore sizes that are very precise, accurate, and repeatable.

- Flexibility: The wires being woven but not welded together allows the material to be formed into various shapes and specifications without damaging the material or losing accuracy.

- Fabrication: This material is able to be cut, formed, or fabricated into nearly any shape imaginable by the use of typical sheet metal fabrication techniques. The end product can be small and simple or very large and very complex.

- Cleanable/Reusable: The nature of the material being metallic and offering surface filtration rather than depth filtration leads to a filter that is cleanable and reusable, making for a much longer service life than a typical disposable filter.

- Harsh Environments: Woven wire mesh offers fine filtration in environments that other fine filters simply cannot withstand. It can be produced in specifications that will perform well when a low micron rating is required in an application that involves high pressure, high temperature, or corrosive chemicals.