Vol. 10  No 3 June  2002

NBC Filtration Systems

NBC Filter FAT 100 m & 200 m

The Filter FAT 100 m and 200 m have been designed for AFV Ajeya (T-72) tank and ICV BMP II respectively to provide collective protection to the occupants against NBC warfare agents. The filters consist of a particulate and a gas filter in conjunction with filter ventilating units of the vehicles. The particulate filter is cylindrical in shape and assembled over the central core for near removal of all aerosols and toxicant containing harmful particles, bacteria, etc. The gas filter contains impregnated carbon for removal of CW agents like vesicants and nerve agents by physical adsorption. The choking and blood agents are however degraded chemically.

NBC Filter Fat 100 m-Salient Features        

Configuration : Composite
Capacity : 100 m3/h
Weight : 10 kg
Diameter : 228 mm
Height : 335 mm
Airflow resistance at 100 m3/hr : Not more than 10 cm WG
Particulate removal efficiency : Not less than 99.97 per cent for particulate down to 0.3
Shelf-life : 5 yr in factory packed condition

NBC Filter Fat 200 m-Salient Features

Configuration : Composite
Capacity : 200 m3/h
Weight : 18 kg
Diameter : 305 mm
Height : 355 mm
Airflow resistance at 200 m3/hr : Not more than 10 cm WG
Particulate removal efficiency : Not less than 99.97 per cent for particulate down to 0.3
Shelf-life : 5 yr in factory packed condition

Status : Introduced into the Services and in regular production.

NBC Filter FAS 200 m

The Filter FAS 200 m is designed for providing NBC protection to the occupants of shelters and naval ships (eastern type). The filter is fitted in conjunction with filter ventilation unit of the shelters and ships and consists of a cylindrical high efficiency particulate aerosol (HEPA) filter and a cylindrical absorber filter. The cylindrical particulate filter contains a central perforated piece over which HEPA filter medium is pleated all around uniformly. The carbon absorber of the filter contains an annular perforated space which is filled with impregnated carbon. The filter FAS 200 m purifies the air to make it breathable free from particulates, aerosols, gases, vapours, etc.

Salient Features

Configuration : Composite
Capacity : 200 m3/h
Weight : 50 kg
Diameter : 435 mm
Height : 530 mm
Airflow resistance at 200 m3/hr : Not more than 7 cm WG
Particulate removal efficiency : Not less than 99.97 per cent for particulate down to 0.3
Protection Time : 5 days as per NATO standards
Shelf-life : 5 yr in factory packed condition

Status : Introduced into the Services and in regular production.

NBC Filter FAS 400 m

The Filter FAS 400 m is designed for providing NBC protection to the occupants of shelters and naval ships (western type). The filter consists of prefilter, fine filter, and gas filter and is fitted in conjunction with filter ventilating unit of shelters or ships. Prefilter removes the coarse particulate matters and prevents loading on high efficiency particulate aerosol (HEPA) filter. Fine filter removes the contaminants such as nuclear fallouts, biological organisms, aerosols particulates, etc. Gas filter is a bed of impregnated carbon filled cartridges that removes CW agents such as blister, nerve agent, choking and blood agents, etc.

Salient Features

Configuration : Modular
Particulate filter assembly : 450 mm x 450 mm x 796 mm (without latch)
Gas filter : 455 mm x 455 mm x 530 mm (without latch)
Composite unit : 455 mm x 455 mm x 1315 mm (without latch)
Weight : 110 kg
Capacity : 425 m3/hr
Air flow resistance @ 425 m3/hr : Not more than 8 cm WG
Particulate removal efficiency : Not less than 99.97 per cent for particulate down to 0.3
Protection time : 5 days as per NATO standards
Shelf-life : 5 yr in factory packed condition

Status: Introduced into the Services and in regular production.

NBC Filter FAS 850 m

The Filter FAS 850 m is designed to provide NBC protection to the occupants of shelters and naval ships (western type). The filter is used in conjunction with filter ventilating unit of ships and shelters. The filter contains prefilter, particulate, and gas filter integrated by means of security bolts and gaskets. The filter has aluminium/steel flange between gas filter and particulate filter to facilitate mounting on an outer bulkhead of the air filtration system on ship. The prefilter comprises cleanable synthetic filter medium to remove coarse particulates from the contaminated air. The particulate filter consists of high efficiency particulate filter medium in the pleated form and is housed in a metal casing. The gas filter contains cartridges filled with impregnated carbon that are housed in mild steel casing. The complete unit is of square cross section.

Salient Features

Configuration : Modular
Prefilter assembly : 655 mm x 655 mm x 300 mm
Particulate filter assembly : 655 mm x 655 mm x 150 mm
Gas Filter : 620  mm x 620 mm x 450 mm
Composite Unit : 665 mm x 665 mm x 957 mm
Weight : 220 kg
Capacity 850 m3/hr
Air flow resistance @ 850 m3/hr : Not more than 5 cm WG
Particulate removal efficiency : Not less than 99.97 per cent for particulate down to 0.3
Gas Filter : Modular with 9-gas cartridge/unit
Protection 5 days as per NATO standards
Shelf-life : 5 yr in factory packed condition

Status: Introduced into the Services and in regular production.


Decontamination Systems \ Medical & First Aid Kits \ NBC Filtration Systems