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Initial Efficiency Flat Panel Filter
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FFU (filter unit)
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Honeycomb chemical filter
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Initial efficiency filter G4 pocket type
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Air duct filter section
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Medium efficiency filter F5 pocket type
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Highly efficient supply diffuser with mechanical seal
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Return/exhaust air intake
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Initial Efficiency Panel Filter with Single Mesh Cover on One Side and Fold (Washable)
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High efficiency paper filter
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Plate filter for capturing varnish vapors
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High efficiency filter without baffles
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High efficiency liquid seal filter
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Medium efficiency filter F8 pocket type
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Highly efficient supply ceiling module
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Oil Mist Filter
Pocket DPA filter to catch colorful mist
The DPA filter bag is a specialized dry paint spray filter bag designed for the paint industry. It uses a 3D composite filter media with a diamond-shaped honeycomb pattern; Its deep filtration structure effectively solves common problems such as rapid clogging, short service life and paint leakage common with standard filter media. Made from eco-friendly fiberglass-free materials that are water and solvent resistant, it is compatible with a wide range of spray applications including water-based paints, solvent-based polyurethane paints, high-concentration coatings and powder spraying. Widely used in recirculation systems in dry spray booths, air return systems in curing ovens and as a pre-filtration for VOC treatment plants, effectively capturing tacky spray paint and particulates. This extends the life of fans, activated carbon and catalytic combustion, while significantly reducing consumables and shop maintenance costs.
Description
marker
Main objects of filtration (collected contaminants)
1. Main particles captured: Various types of paint aerosol
Oil-based paint aerosol: overspray droplets of two-component polyurethane (PU) paints, metallic paints, clear varnishes and high solids solvent-based paints
Water-based paint spray: fine, sticky droplets of wood and metal coatings and environmentally friendly water-based paints
Powder/dust: powder particles that did not settle on the product during electrostatic spraying; pigments; suspended particles of powder coatings
Viscous suspended particles: atomized resin droplets, glue/adhesive droplets, pigment paste agglomerates
2. Additional capture of mixed contaminants
Metal dust from grinding, flakes of paint film, paint clots, industrial dust, slight low-temperature oil fumes, sticky oil-resin aerosol
3. Efficiency of filtration by fractions
Paint aerosol particles >20 µm: 100% capture
Fine paint aerosol >10 microns: filtration efficiency 99.8%
Microparticles 5 microns: capture rate 84.5%
Applications
1. Painting of cars (body and parts) - main application
Dry-type booths for painting bodies, bumpers, wheel hubs, chassis components and headlight housings; pre-filtration of recirculated air in finishing coating chambers and purification of exhaust air from drying chambers
2. Custom furniture production and woodworking
Production lines for applying (by spraying) water- or oil-based coatings to solid wood furniture, wooden doors and cabinets, cabinet furniture for the whole house, stairs
3. Construction equipment, metal structures and containers
Application of anti-corrosion coatings on excavators, tower cranes, steel pipes and sheet metal; Preliminary air purification before electrostatic spraying on large-sized products
4. Components for rail transport and aviation
Purification of recirculated air in dust-free paint shops (high-speed train cars, subway car interiors, small aircraft parts)
5. Electronics (3C) and small plastic products
Application of UV coatings to the housings of mobile phones, computers and parts of household appliances; automatic lines for painting and spraying on plastic
6. Hardware, kitchen utensils and metal lamps
Stainless steel kitchen utensils, door locks, radiators, aluminum powder coating, metal products (drying/baking)
7. General objectives for environmental protection
Pre-filtration for VOC (volatile organic compound) treatment systems; filtration during internal air recirculation in dry spray booths; ink application workshops; workshops for working with adhesive compositions
Eight key product benefits
1. Ultra-high paint holding capacity; doubled service life
Features a three-dimensional (3D) diamond-pattern pocket structure that doubles the filtration area compared to standard bag filters. The maximum paint holding capacity is 27 kg/m²; Under normal conditions, the service life is 3 to 6 times longer than standard paint mist filters (and up to 10 times when working with high-viscosity clear coats), significantly reducing replacement frequency and saving on labor and material costs.
2. Effective capture of fine paint mist; preventing particle leakage
A multi-layer deep filtration structure is used to capture 99.8% of fine ink mist (10 microns in size). One stage of this filtration is superior to traditional two-stage systems (coarse and medium filters), preventing paint penetration and contamination of subsequent system elements such as carbon filters, catalytic afterburners and fan impellers.
3. Low pressure drop; saving energy and electricity
Made from a new composite high-volume filter material with an initial aerodynamic drag of only 20 Pa. The increase in pressure drop occurs slowly even after a large amount of paint has been absorbed, which reduces the load on the fan and reduces energy costs during long-term operation.
4. Self-supporting structure; retention of shape when paint is absorbed
The filter material has a built-in volumetric (3D) frame. Even when saturated with heavy paint sludge, the honeycomb structure does not deform, stick together or become clogged. This ensures consistent airflow throughout its life, preventing problems such as localized air blockages or uneven flow within the spray booth.
5. Full compatibility with various types of paints; resistance to water and solvents
Made from environmentally friendly synthetic fibers (does not contain fiberglass), they are 100% moisture resistant and work reliably with water-based paints, solvent-based paints, and aggressive thinners. They can withstand prolonged heating up to 80°C and short-term peak temperatures up to 120°C, which allows their use in paint drying chambers.
6. Easy to install; direct replacement for standard pocket filters
Available in standard sizes (592x592, 490x590) and configurations (3, 4 or 5 pockets). Does not require frame modification; They are a direct replacement for legacy paint mist filters and take just one minute to install and remove.
7. Ease of disposal and compliance with environmental standards
Contains no fiberglass or hazardous substances. Once the paint particles are captured, the filters can be disposed of by direct incineration in accordance with hazardous waste regulations for coating plants; no secondary pollution occurs.
8. Possibility of individual order
Frames can be made of galvanized steel or aluminum alloy. You can choose the number of pockets, their depth and overall dimensions; Fire-resistant versions and high-capacity filters (made of thicker material) are also available.
What customer problems do DPA filters solve?
1. Old style filter media have low dirt holding capacity (ability to hold paint), requiring replacement every 3-5 days and incurring high labor and consumable costs.
2. Paint particles penetrate the filter layer, clogging and damaging fans and activated carbon units, resulting in high equipment maintenance costs.
3. Standard filter materials soften and deform under the influence of moisture, which leads to failures in filtration and increased dust in workshops where water-based paints are used.
4. Filter pockets stick together and become clogged after paint is absorbed, reducing air flow in the paint booth and causing surface defects on painted products due to particle settling.
5. Fiberglass filter materials release fibers that contaminate the surface of products, which leads to defective batches of products.
Custom ordering and purchasing information
Custom sizes:It is possible to produce filters of non-standard sizes (length, width, pocket depth) and configurations (3, 4, 5 or 6 pockets) by creating an individual mold.
Improved materials:Fire resistant DPA filters available as well as thicker material optionsincreased capacity. Frame options:economical frames made of galvanized steel or frames made of corrosion-resistant aluminum alloy.
Compatible Equipment:air purification units for paint booths, VOC catalytic afterburning systems, dry type paint booths and recirculation air purification modules.
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