Spectrum Filtration Pvt Ltd Middleton Street, Kolkata, West Bengal

Testing and certification for this range of filters has been sadly lacking in our country. For many years,and right upto the present time, efficiencies for this range of filters are reported in terms of BS 2831,which is an obsolete standard.Current international norms call for reporting of filters to be tested and evaluated in terms of ASHRAE 52.2, which specifies the rating of filters in terms of MERV (Minimum Efficiency Reporting Value). For the first time, filters are rated in terms of their efficiencies at a particular particle size, rather than in terms of simple gravimetric retention or dust spot efficiency. Spectrum is a pioneer in the installation of a test rig for the testing of filters in accordance with ASHRAE 52.2, and possesses a state-of-the-art facility for testing, evaluation and reporting of prefilters and intermediate efficiency filters. Spectrum also supplies prefilters and intermediate efficiency filters for various industrial applications, with media from Filtrair b.v., Netherlands, which is UL certified and certified for efficiency. Domestically available media are not certified, and their actual performance is therefore indeterminate. The Company thereby ensures that its products invariably satisfy client requirements with regard to filtration efficiency and dust holding capacity.

Our 'hot-melt mini-pleat' filter design configuration increases its energy efficiency due to lower pressure drop in comparison to conventional deep pleat HEPA. The 'Spectra Mini-Pleat' filters are thus the lowest cost filters to operate over the filter's life. In new applications, using 'Spectra Mini-pleat' HEPA filters reduce the cost and size of the filter housing. Spectrum's mini-pleat HEPA filters offer outstanding performance and are factory scanned before they reach the customer. Individual testing under rigid quality control and modern assembly methods ensures conformance to specifications.

Spectrum High temperature (HT) air filter range offers from high temperature sliced media pad type or as framed box filters, This HT range has developed a filtration system to meet clean air environment at oven application.

The filter is sealed to the frame with a two - part polyurethane adhesive to ensure zero leakage.

Auto Roll filter units are available in a wide range of size and feature options. The filter uses an industrial grade fiberglass media which automatically renews when prompted by a pressure drop based sensor. Along with pressure drop sensing the filter also has media run out alarm. The intelligent control panel can be placed besides the filter unit or can be integrated with the centralized building control. The unit is equipped with a totally enclosed thermally protected motor.

Spectrum Universal Filter Holding Frames are designed for simple and cost-effective constructionremodeling of filter banks. Its unique modular design is ideal for quick and hassle free installation at site. The frames come in a variety of standard sizes and can also be delivered in custom made sizes. The frames come with 4 quick clamp spring clips to ensure positive seal. The holding frames are available in Extruded Aluminum, Galvanised and Stainless Steel construction. A silicone free gasket is provided with the holding frame.

We Offer Spectra Auto Viscous filter is a self-cleaning viscous air filter using a rotating curtain of metal screen as the filtering media. Behind the filter media roll is an endless roll of oil drop eliminator. When the filter media is loaded and the pressure drop increases, a totally enclosed thermally protected geared motor moves the filter media and oil drop eliminator which pass through a viscous oil bath located at the bottom of the filter. The viscous oil cleans the filter media and the oil drop eliminator ensures that the oil is not carried into the air stream. The sludge collected in the oil bath needs to be cleaned periodically.

We Offer Auto Roll filter units are available in a wide range of size and feature options. The filter uses an Industrial grade fiberglass media which automatically renews when prompted by a pressure drop based sensor. Along with pressure drop sensing the filter also has media run out alarm. The intelligent control panel can be placed besides the filter unit or can be integrated with the centralized building control. The unit is equipped with a totally enclosed thermally protected motor.