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Home > Industrial Textiles > Filtration products
   Filtration products  
 
Overview Supplier
  • Key application areas of filtration products
    The broad classification based on applications is given below:-
    1. Industrial filters
      Industrial filters include vacuum filters, pressure filters, and dust collection equipment like bag filters etc used in industries like Cement, Pharma, Fertilizer, Food Processing and other process industries
    2. Automotive filters
      Automotive filters are primarily of three types - Oil filter, Air filter and Fuel filter. The filters clean the oil, air and fuel by blocking dirt and other unwanted particles from entering the vehicle system. The technical textile used in the filters is cellulose and polyester non-woven filter paper.
Product characteristics:
  • The filtration goods can be categorized into two most important categories.
    1. Liquid solid separation
    2. Air-solid separation.
  • The filter media used for Air-solid separation is primarily non woven fabric.
  • Whereas Liquid solid separation involves woven filter media.
  • The characteristics of the filter are based on the specification of the original equipment manufacturers:
    1. Permeability,
    2. Corrugation depth,
    3. Bursting strength,
    4. Pore size,
    5. Volatile content,
    6. Resin content and
    7. Width and height.
  • All the three filters are required for proper functioning of internal combustion engine.
  • The non woven filtration media is manufactured by needle punching process.
Different parameter of woven & nonwoven filter media:
WOVEN FILTER MEDIA
Fabric type Weight / sq. Mtr. Tensile strength (kgs.) Air permeability
WARP WEFT (CU.FT/SEC)
Polypropylene spun fabric 280 - 650 200 - 426 140 - 350 0.97 - 0.20
Polypropylene Multi filament fabric 275 - 450 295 - 500 145 - 400 0.5 - 0.13
Polyester spun fabric 360 - 670 325 - 600 250 - 308 0.20 - 0.109
Nylon filament fabric 330 - 450 310 - 548 275 - 414 0.60 - 0.23
Cotton fabric 400 - 830 135 - 320 110 - 225 0.30 - 0.08

Non Woven Filter Media Weight (GSM) Thickness (Mm) Breaking Strength(Kgf) Bursting Strength (Kg/Cm²) Max.Temp. (Cº) Air Permeability
Polyester & Polyester 300 – 550 1.7 - 2.3 30 - 70 15 - 30 150 160 - 750
Polypropylene & Polypropylene 400 – 700 1.8 - 3.0 70 - 150 30 - 40 90 100 - 200
Polyester - Acrylic & Polyester 500 202 70 30 120 200
Polyester - Viscose 220 1.8 16 4 130 550

Key users of industrial filters are:
  • The key end users for industrial filters are
  • Cement,
  • Pharmaceuticals,
  • Fertilizer,
  • Food Processing,
  • Power and Engineering sectors.
  • The demand of filter equipments and filter media is driven by the performance of these sectors.
  • The filter media has a higher proportion of replacement demand compared to the filtration equipments.
Key machinery used
  • The machinery used for processing paper into filter paper is given below:
  • Filter paper impregnation machine
  • Pleating machine – Blade/Rotary type
  • Perforation machine Curing machine
Raw materials
  • The raw material characteristics are given in the following table.
Basic Raw Material Poly-Propylene Polyester Acrylonitrile (Co-Polymeric & Homopolymeric) Ryton(Poly-Phenylene-Sulphide) Nomex (Poly-Aramid)
Recommended Operational Temp.(Cº) 80 - 100 120 - 150 100 – 160 170 - 190 190 - 204
Tensile Properties Good Good Moderate Good Good
Abrasion Excellent Good Moderate Good Good
Acid Excellent Excellent Good Excellent Fair
Alkali Excellent Poor Good Excellent Fair
To Hydrolysis [Presence Of Strong Acid, Sox, Alkali & Oxidizing Agent] With Moisture Moderately With Moisture At High Temperature With Moisture & Temperature. Unaffected Even With Moisture & Temperature With Substantial Moisture & Typical Temperature
Applications Liquid Filtrations Cement, Coal Mills, Fertilizer, Asbestos, Etc Industries. Cement, Coal Mills, Fertilizer, Asbestos, Etc Industries. Kilns, Boilers Of Different Industries. Critical & Fine Gas Filtration, Kilns, Boilers Of Different Industries
     

 

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