Wedge Wire Screen Filters Versus Other Filtration Methods

What is Wedge Wire Screen?
Wedge wire, also known as profile wire or V-wire, is the basis of screening
products. Unlike perforated plate or woven wire, wedgewire screens offer a 2-
point particle contact and slot openings that widen in the flow direction so
that particles are less likely to plug the screen.

A wedge wire filter is a heavy-duty filter device with V-shaped wires welded
to support rods to form a sturdy screen with fine slot openings. It is
designed to remove solids from liquids or gases and operate at high flow
rates.

Its wedge-shaped profile inhibits particle clogging and guarantees consistent
functionality, even in high-pressure or abrasive conditions. The filters can
be customized in slot size, shape, and material, making them suitable for a
wide range of industrial processes.
Common Applications
Wedge wire filters are commonly utilized in process filtration and water
treatment plants (e.g., for intake screening, backwash systems). They are
used in oil and gas production, where they separate sand from crude oil, and
in chemical processing, where they recover catalyst.



In agriculture, they are used for irrigation filtration, and in the food and
beverage industries, they are essential for starch extraction and juice
clarification. Its corrosion-resistant versions are critical for desalination
pre-treatment in marine settings.



Benefits Compared to Other Filters
Compared to mesh or perforated plate filters, wedge wire designs provide a
higher mechanical strength and longer service life, as much as 20 years in
aggressive environments. In high sediment applications, their self-cleaning
mechanism virtually eliminates the need for maintenance about 30-50% of the
time.



Wedge Wire Filters Versus Other Filtration Methods
Mesh Filters vs Wedge Wire
Wedge wire vs mesh filters: filtering performance differences and design
considerations. Wedge wire filters are essentially V-shaped wires welded on
the support profiles to achieve a specific slot opening, which does not
accumulate particles. Filters made of interleaved wire mesh produce a finer
filter but are prone to clogging and deformation under pressure.

Wedge wire, with its open surface area, is capable of handling upward of 40%
higher flow rates in water treatment applications than mesh can. All in all,
wedge wire constructs can face pressures of over 150 PSI compared to mesh
filters, which get damaged above 80 PSI.

Mining industries, for example, favour wedge wire to filter heavily viscous
slurries, while mesh is popular in laboratory environments, enabling sub-
micron particle capture.



Wedge Wire vs Sintered Filters
Sintered filters provide micron-level filtration by using fused metal or
plastic particles to form porous barriers. But their uneven pore structures
restrict flow rates from being uniform and make mechanical cleaning a
challenge. The uniform slot size of wedge wire filters allows easy
backwashing and maintenance.

Corrosive fluids can lead to the degradation of sintered filters, but
stainless steel construction enables wedge wire to withstand the impact of
such environments over a long time. Wedge wire retains structural integrity
at temperatures above 900°F for high-temperature applications like
pyrolysis, while sintered filters begin to crack above 600°F.

While the former is used for pharmaceutical gas filtering, the latter
prevails in demanding applications where they need durability and
reusability.



Wedge Wire vs Perforated Filter
Perforated filtration elements are designed for sanitary applications where
3-A certification is required and when larger particles and solids must be
captured to prevent damage to downstream equipment. Perforated elements are
also ideal when seeking to strain finer particles by incorporating filter
media or mesh overlays.



Long story short, don't go it alone! Contact our filtration experts for
assistance with your application. We are happy to assist your businesses.

sales@ubofilter.com

86-1 , 8032153916

Minimum Order: 1 sets

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