PRE FILTERS


  1. Available up to a filtration efficiency of 95% for 10 micron particle size. (Overall filtration efficiency by using discrete particle count efficiency test method).
  2. Suitable for use as filter grades G1 to G4 of EN 779 and MERV 1 to 7 of Ashrae 52.2.
  3. Can be manufactured with or without "Flange" or "Header".
  4. Optional perforated metal or expanded metal guard.
  5. Available in casing thickness from 0.5 to 1.5 mm in MOC variants of Galvanized.
  6. Sheet steel, Aluminium or Stainless steel with suitable surface finish.
  7. Available in extruded aluminium profile casings with plastic corner.
  8. Manufactured in standard sizes as mention below and also for the customer's specific sizes.

STANDARD SIZES

625x625x48 mm 500x400x48 mm 305x305x48 mm
625x500x48 mm 400x400x48 mm 610x610x75 mm
625x400x48 mm 610x610x48 mm 610x610x100 mm
500x500x48 mm 610x310x48 mm 610x610x150 mm

WATER WASHABLE PRE FILTERS
  1. Multiple layers of mono filament synthetic woven fabric of suitable mesh size and mono filament thickness stitched with an aluminium expanded metal reinforcement is used as the filtration media.
  2. In cases where necessary, aluminium pipes rigidly fixed to the casing with PPCP studs at each pleat act as pleat supports.
  3. Pleated media for enhanced surface area, higher dust holding, higher air handling capacity & lesser pressure drop.
  4. Epoxy or PU sealants to bond casing to the filtration media.
  5. Water washable (Refer "Handling and Servicing" instructions).

AIR CLEANABLE PRE FILTERS
  1. Non woven synthetic fibre filtration media in Hi-loft or Needle punched fabric with suitable covering and aluminium expanded metal reinforcement is used as the filtration media.
  2. Pleated media for enhanced surface area, higher dust holding, higher air handling capacity & lesser pressure drop.
  3. PU foam and synthetic water based adhesives to seal media with casing.
  4. Air cleanable (Refer "Handling and Servicing" instructions).

METALLIC VISCOUS FILTERS
  1. Combination of flat and corrugated layers of metallic meshes of varying mesh sizes and wire diameter is used as filtration media.
  2. Can be used as a dry filter or as oil wetted filter.
  3. Can be used in series with a louver filter to improve life and performance.
  4. Options of GI and stainless steel wire meshes available.
  5. Most suitable as paint booth exhaust filters and kitchen exhaust filters.

HIGH TEMPERATURE PRE FILTERS
  1. Suitable for use up to 250 Deg C operations.
  2. Multiple layers of Stainless steel or fibre glass mesh or fibre glass tissue are used as filtration media.
  3. Casing is usually stainless steel.
  4. Silicone sealants used to seal casing to media pack.
  5. Suitable for use as pre filters in paint baking ovens and dryers.