The suitable choice of filter media
with optimum pore size, strength and corrosion resistance allows prolong filter
service with good efficiency particle retention. The sintered porous metal
media meets the criteria and offers good particle separation efficiency while
meeting the tight emission regulations for modern industrial processes. The
production of specifically designed and engineered sintered porous metal media
with consistent porous matrix, precise bubble point dimensions, close thickness
tolerances and permeability uniformity ensures consistent filtration
performance, suitable blowback cleaning and prolong service life.
The characteristics of metal filters,
developed from different metal alloys, permit their service in the wide
conditions such as high temperature, large pressure and corrosive media.
Service temperature can increase up to 1000oC on the basis of choice of
application metal. The basic advantages of sintered metal filters are- good
strength and cracking hardness, large pressure and temperature potential,
extensive resistance to thermal shock, corrosion resistance, easily cleanability,
high welded assembly and prolong service.
Sintered mesh media have shown good
particle efficiency, consistent filtration performance, suitable backwash and
on-stream efficient performance. These elements can offer particle capture
efficiency about 99.9% by using surface or depth techniques. In addition of
efficient filtration consideration, the factors also include corrosion
resistance, mechanical strength at application temperature, cake elimination
and longer service life. These factors are essential for the successful and
economical services. The performance of these filter media is based on the particulate
holding capacity and the related pressure drop. This accumulating cake can be regularly
eradicated during the blowback cycle. This suitability of the blowback cycle
and filter pressure drop recovery is crucial function of characteristics of the
accumulated particles in the cake and filter elements.
The sintered mesh is considered as partial-permanent
media with the entire welded structure. The benefit of metallic filters is that
can be welded to the components to receive durable sealed joints. The filter
elements can withstand pressure spikes without media migration. The inherent
hardness of the filter offers regular and back pulsed service for long
duration. For the high temperature applications creep-fatigue interactions and
elevated temperature corrosion processes are taken into account. The filters
with partial-permanent media are economical like units offer minimal downtime,
automatic operation with minor contribution of operation and mild maintenance.
Sintered mesh porous metal provides
service at temperature limits varying from 400 – 950oC on the basis of alloy
material and atmospheric media. Sintered metal filter elements can withstand differential
pressures above 210 bar. The sintered metal is a permanent media that can pair
with the whole welded structure if needed and can work with pressure spikes
without movement of media.
Permanent structure of sintered metal
mesh
Sintered mesh media features
permanent structure that enables cleaning of filter cartridges in the diverse
ways without any migration of media. An optimum choice of alloy for corrosion
resistance and media grade for particle elimination ensures liquid purity or
gas during separation. In-situ cleaning in process filters by liquid or gas
backwash. The chemical cleaning with suitable materials or ultrasonic cleaning
in the detergent solution will prevent insoluble contaminants from inside the
filter media. Sintered metal mesh is made from the diverse corrosion resistant alloys
such as Monel 400, Inconel 625, Nickel 200, Stainless steel 304/304l, Inconel
600 and Titanium.
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