Gas filters - Import export

Our range of sterile gas filters includes two types of sterile gas filter - PTFE membrane or GF depth media's - and also includes a range of coalescing prefilters that ensure the maximum protection of the final sterile filter. All are designed with minimum operating differential pressure in mind to minimise running costs and to optimise filter service life.

Gas Detection Systems use Interference Bandpass Filters to identify the emission of a type of gas. Different gases emit at a specific wavelength which makes it identifiable when using a relevant Interference Bandpass Filter. These wavelengths are: Carbon Monoxide (CO) @ 4.73μm Nitric Oxide (NO) @ 5.24μm Nitrogen Dioxide (NO₂) @ 6.17μm Sulphur Dioxide (SO₂) @ 7.42μm Hydrogen Chloride (HCl) @ 3.55μm Carbon Dioxide (CO₂) @ 10.7μm Knight Optical provide a wide range of interference bandpass filters that can be used with gas detection. The Interference Bandpass Filters would be need to transmit in the infrared region. These would be a customised item, which we are very experienced in. We provide narrow, standard, broadband and extra broadband filters with a high optical density of 4 as standard, however this can be customised for you. For more information read PDF

STERALine PBT Filter housings are part of our hygienic filter housing range for food, beverage, pharmaceutical, API, fine chemicals and semiconductor industry. All hygienic housings are manufactured under strict quality control in facilities that only use Stainless Steel to avoid cross contamination of materials. STERALine PBT filter housings come with optional 0.8Ra internal finish and triclamp connections. A range of optional accessories, connections and finishes available on request. STERALine GT Gas cartridge filter housings are the newest addition to our range of sanitary range. Designed and manufactured specially for gas filtration in beverage, pharmaceutical and hygienic applications, STERALine GT Series filter housings feature robust 316L Stainless Steel construction, hygienic surface finish and a free draining design which is easy to clean. STERALine Vent cartridge filter housings have been specially designed for hygienic tank vent applications.