In 2010, Unifrax acquired Brightcross Insulation Ltd and with the acquisition came the sales history and experience of 15 years of manufacturing successful PUREFRAX Hot Gas Filters.
Hundreds of companies have benefitted from and continue to benefit from using these ceramic filter elements. The key benefits include:
Unlike traditional bag/ fabric filters which require cages. PUREFRAX filters are manufactured with a top flange which sits above the cell plate enabling the filters to hang vertically in application.
HIGHLY EFFICIENT EMISSIONS REDUCTION:
Elements themselves allow virtually 100% reduction in particulate emissions and through the use of sorbent injection systems enable the same reductions in acid gases such as HCl, HF and SO2 with Powdered Activated Carbon (PAC) injection providing control of Dioxin/Furan and Heavy Metal emissions.
ABILITY TO OPERATE OVER A WIDE RANGE OF TEMPERATURES AND OPERATING CONDITIONS:
Manufactured from base fibers that are temperature resistance up to 1,260oC, have insensitivity to sparks, excellent thermal shock resistance and non-flammability, PUREFRAX removes the risk of damage and fire associated with the use of conventional fabric filter media at high temperatures.
High temperature operation improves the efficiency of certain sorbents and also enables operation above the de-Novo synthesis temperature window for Dioxins/Furans.
Elements are also highly resistant to corrosive environments.
STRICT PROCESS CONTROL:
Excellent dimensional accuracy through full machining of candles and controlled uniform permeability with minimal pressure drop allows both highly efficient filtration efficiency and optimal reverse jet clean-down performance.
LONG LIFE ELEMENTS:
Installations with element lives of over 5 years are regularly achieved.
Unifrax is the only company offering Hot Gas Filters that produce both the raw material (Ceramic and LBP Fibers) and finished Hot Gas Filter meaning we have absolute control over production quality and parameters. This can allow us to develop and adapt our filters for a variety of challenging applications
LOWER POWER CONSUMPTION AND SIMPLER OPERATION:
Final filter systems do not require cyclones, dilution air, spark arrestment or other ancillary equipment.
IN-HOUSE POLLUTION CONTROL EXPERTISE:
Advice and support is available in all matters relating to air pollution control equipment design, specification and commissioning as well as environmental legislation.