Unique Design
FAP pockets are constructed of rigid synthetic media, high-frequency welded into an aerodynamically tapered pocket design, to provide high burst strength and avoid contaminant bypass. Pockets have built-in diamond-shaped separators to ensure continued receptive open pockets even when airflow is low or turned off. Short pockets have these aerodynamic separators built in as well. Long, medium and short pockets are made to fit 6 or 8 pocket configurations in a standard frame, usually 24″x24″ / 595×595 mm. Pockets are available in 40-95 % efficiency grades and in three (L, M, S) depth measurements.
Media
FAP rigid pockets are constructed to stay extended and not collapse at air flow shut down, supporting the dust cake formed inside the filter media at all times, even when the airstream is turned off intermittently. Optionally available in meltblown media pockets, that however do collapse when the airstream is turned off. The material of both is of sturdy, unbreakable synthetic polyester or of polypropylene meltblown construction, and pocket seams have broad thermal or strong ultrasonic welded seams to ensure form stability, even under moist and turbulent conditions.
Benefits
Design and construction ensure lowest possible pressure drop, significant energy savings, high dust loading capability and exceptional filter life span, thus greatly reducing operating cost. Elimination of sewed seams results in superior burst strength performance of up to 6000 Pa, or 12″ WG, and prevents any contamination bypass.
The TopAir plastic component standard pocket filter frame (22 mm or 7/8″ frame thickness) fits any HVAC system and can be easily assembled without major equipment. The components are polypropylene-based plastics of a rigid, nonflexible construction.
No assembly machines, hydraulics or compressors are required. A few hand tools and a simple table with pre-fixed standard clamps (available from FirstAir at nominal cost) are all that is needed.
TopAir frame system components come in standard pre-cut packs and are exclusively available with FirstAir welded media single pockets for easy local on-site assembly anywhere in the world.
TopAir pocket filter frames (22 mm or 7/8″ frame thickness) accommodate both rigid thick-media stiff pockets and melt blown soft and thin pockets. TopAir pocket filter frames, components and assembly table are designed to fit standard 595×595 mm / 24×24″ filter frames in 6 or 8 pocket configurations. Other dimensions and numbers of pockets are available when volumes warrant.
TopAir Pocket Frame System
Assembly
Assembly is easy when using a simple 595×595 mm / 24×24 assembly table with pre-fixed standard clamps to hold pockets in place. The clamps facilitate assembly by a single person.
The assembly table is designed and supplied by FirstAir.
Tools
Only small commercially available tools and clamps are needed to assemble a complete pocket frame system using FirstAir single pockets.
Labor requirement
- No training or special skills are required to assemble a TopAir frame with FirstAir single pockets.
- No physical force, compressed air or hydraulics are needed.
- A single person, after being shown a short YouTube video, can complete the assembly of six to ten complete pocket filter units per hour on a FirstAir assembly table.
FirstAir diffusion ceiling media are designed for the ?nal ?ltration of supply air to downdraft paint spray booths and to arrest all paint damaging particles larger than 5 microns in size. They are also known as spray paint booth filters and paint booth exhaust filters.
