a spa w yman & a ssociates (ASPA FILTERS) (ASPA FILTERS) Better Filtration – Better Times 18 o 31’42” N, 73 o 49’57” E
Aspa W Wym yman & & A Associ ciates (Filte (Filters Di Divn). ). We introduce ourselves as one of the leading quality manufacturers of Air Handling Filters for FCU, AHU, Supply Fans, Activated Carbon Filters, Chemical Filters, Humidity absorbent filters & HEPA Filters widely used in Air-conditioning, Ventilation, Sterile or Clean Room Filtration, Dust Collection Systems, Electrostatic Filtration Equipments, Radioactive Fume Hoods for Nuclear Medicine Departments, & Kitchen Exhausts in Hospitality Industry. Our product range consists of : Pre-Filters Fine Filters Activated Carbon Filters for Fume & Odor adsorption. HEPA & Mini Pleat HEPA Filters. Roll-O-Mat & Bag Filters for Paint Booths & Polyester Yarn Industries. Our product is used by various leading industrial houses, Atomic Energy Establishments, Thermal & Hydro Power Stations, Aeronautical Industries, Hospitals, Pharmaceuticals, Railways, Polyester Fiber Manufacturing Units, Star Hotels, Multiplex / Auditoriums etc. (Please find enclosed customer list). We undertake designing & manufacturing of air filters as per buyers specifications & standards …………………
“ ASPA ” – make FAN COIL UNIT FILTERS Metallic Mesh Media Double Knitted Twisted Polymer Media Synthetic Interlocked Mesh Media Special Features: • Available in 10 & 15 micron rating (Depends on static pressure of the fan). • Pressure drop of 3mm to 5mm of W.C. across the filter. • These filters are used in fan coil units & ductable splits of comfort & industrial air-conditioning. • Available in 10, 15 & 25 mm thickness.
“ ASPA ” – make PRE FILTERS Available with an efficiency of 15 micron & 10 micron rating • Filter media consists of Double Knitted Twisted Polymer Fabric, aluminium expanded metal & stiffeners on both sides of filter media. • Media does not distort after washing. • Suitable as a pre-filter for comfort & industrial air handling units. • Available in 25mm & 50mm thickness • Water washable. • High Service Life.
“ ASPA ” – make METALLIC VISCOUS FILTERS • Available in 20 micron rating. • A combination of flat & corrugated layers of metallic mesh. • Available with GI / Aluminium / SS mesh. • Fineness of the mesh increases towards the air leaving side. • Suitable as a paint booth exhaust and kitchen hood exhaust filter. • To be used instead of baffle filters in Kitchen Hood . • Oil & Grease particles are arrested at source. The duct remains clean.
“ ASPA ” – make FINE FILTERS • The filter casing can be fabricated with/without flange as per customer requirements. • Available in casing thickness of 1.5 mm in variants of Mild steel/Galvanized steel / Aluminium/Stainless steel with a surface finish of enamel paint /powder coating /anodized finish. • Non-Woven Polyester fiber is used as filtration media. Other types of filtration media are available on specific request. • 6 to 11 Pleats per running foot depending upon the application & air flow. • Synthetic adhesives & separators are used to seal frame with media. • Initial pressure drop of 6-8 mm WC. • Filtration efficiency of 5 & 3 microns. • Washable with compressed air or high speed blower & water.
” ASPA ” – make HEPA FILTERS ASPA - make HEPA filters are available in the standard sizes for deep pleat version. Non-Standard sizes can also be manufactured as per customer ’ s requirements. The filter can be assembled with/ without flanges. Available in casing thickness of 1.5 mm in variants of Aluminium / Stainless Steel. Anodizing is the standard surface finish offered for Aluminium casings. Filtration media is submicronic micro glass paper, which is fire retardant HEPA filter media manufactured by M/s.Lydall Inc, USA. Deep Pleat Aluminium separators made from 36 swg. aluminium foil are used in the case of deep pleat version. High impact polystyrene separators are used in the case of mini pleat version. Flanges are fixed with synthetic soft rubber gaskets. Deep pleat filters have a initial pressure drop of 22 - 25 mm WC Mini Pleat Mini pleat filters have a initial pressure drop of 15-18 mm WC These filters have efficiency of 0.3 microns. All filters are particle counted and DOP leak tested. Each filter is accompanied by a test certificate. Details of Gasket Joints
“ ASPA ” – make BAG FILTERS ASPA - make bag filters are available in any size as per customer requirements, depending upon the air volume required to be handled. The pockets of Bag filters can handle high air volume in less area. The filters can be fabricated with/without flange as per customer's choice. • Available in casing thickness of 1.5 mm in variants of Mild steel / Galvanized steel /Aluminium/Stainless steel with a surface finish of enamel paint / anodisation or powder coated finish • Media consists of Non-Woven Polyester fabric chemically bonded with a layer of High density polyethylene (HDPE) mesh for support on the exit side resulting in a mechanically strong media. • Bags are intra stitched to prevent bag ballooning. • Stitch holes are sealed using synthetic sealants. • Bags are sealed with frame using synthetic sealants. • Initial pressure drop of 8 mm WC. • Filtration efficiency available is from 20 micron to 3 microns.
“ ASPA ” – make ACTIVATED CARBON FILTERS How activated carbon is made? Most active carbon, as used for gas or vapor trapping, is made from coconut shell. The shells are heated to over 2,000°C under high pressure, which causes fissures on the surface of the carbon, creating a high quality, small pore activated carbon. The fissure system is extensive, creating a very large surface area in a small package, and it is in these fissures that other gases and particles are trapped. A single activated carbon filter has a flattened surface area of a football field and can absorb up to 60% of their own weight in gases! How does activated carbon remove odors? Activated Carbon has the ability to capture gas molecules and hold them. The accumulation of molecules of a gas to form a thin film on the surface of a solid is called adsorbtion. The carbon surface is made up of millions of tiny pores, the gas and odors fall into these pores and are trapped there until the pad is recharged or disposed. Other methods to get rid of odors such as sprays & deodorants, only fool you sense of smell - the odors still exist. Activated carbon air filters are the most effective type of filter against chemicals, gases, cigarette smoke and other odors. (list mentioned) Activated carbon air filters consist of a vast system of pores of molecular size. These pores are highly adsorbent, forming a strong chemical bond or attraction to odorous, gaseous, and liquid contaminates. Activated Carbon Filtration is commonly used in water and air purification. HVAC applications, which require the removal of odors include air filtration and air purification in medical, pharmaceutical, electronics, semiconductor, hospital, and oil- free environments.
“ ASPA ” – make ACTIVATED CARBON FILTERS For FCU / Trap Doors For AHU / TFA / Draft Ventilation
TECHNICAL SPECIFICATION OF GRANULAR ACTIVATED CARBON Appearance Black Granular Any sieve size viz. 4 / 8, 8 / 16, 12 / 30, 4 / 16, 8 / 30,16 / 30 Particle Size 1100 mg / gm ± Iodine Adsorption 500 mg / gm ± 25 750 mg / gm ± 25 850 mg / gm ± 50 950 mg / gm ± 50 50 pH 9 to 10 9 to 10 9 to 10 9 to 10 9 to 10 Moisture 5% 5% 5% 5% 5% Total Surface Area 500 m 2 / gm. 750 m 2 / gm. 850 m 2 / gm. 950 m 2 / gm. 1100 m 2 / gm. 0.55 ± 0.05 gm. / 0.53 ± 0.05 gm. / 0.51 ± 0.05 gm. / 0.50 ± 0.05 gm. / 0.48 ± 0.05 gm. / Bulk Density CC CC CC CC CC Ball Pan Hardness 90 85 80 80 70 no. 5.% Max 5.% Max 5.% Max 5.% Max 5.% Max Ash Content
“ ASPA ” – make ACTIVATED CARBON FILTERS Activated Carbon is effective at removing the following types of chemicals: Cyclohexanol Hydrogen fluoride Paint & redecorating odors Acetaldehyde Acetic Acid Cyclohexanol Hydrogen iodide Palmitic Acid Acetic anhydride Cyclohexene Hydrogen selenide Paradichlorbenzine Acetone Decane Hydrogen sulfide Pantane Dibromoethane Incensen Pentanone Acrolem Dichlorobenzene Indole Pentylene Acrylic Acid Dichlorodifluoromethane Iodine Pentyne Acrylonitrile Dichloroethane Iodoform Perchloroethylene Alcoholic Beverages Dichloroethylene Irritants Perfumes, cosmetics Amines Dichloroethyl Isophorone Phenol Ammonia Dichloromonofluormethane Isoprene Phosgene Ameyl acetate Dichloronitroethane Isopropyl acetate Pitch Amyl alcohol Dichloroprpane Isopropyl alcohol Poison gases Amyl ether Dichlorotetrafluoroethane Isopropyl ether Pollen
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