GEA's Issue - Solution - PFA extrusions by Holscot Grantham Background GEA was involved in constructing Heat Exchanger units for coal fired power stations. The ECOGAVO system is an indirect leakage free heat displacement system around flue-gas desulfurization (FGD) plant, enable flue-gas cooling to below the acid dew point by making use of G-Flon all-plastic heat exchangers. The only material able to withstand exposure to these gases at 200 deg C is PFA. Problem The Heat Exchanger comprises bundles of PFA extruded tubing supported by PFA covered steel bars. The PFA tubes had to be separated from one another so that they did not come in contact with each other. Solution A design was created which entailed PFA covered support bars with PFA Spacers located along it. The PFA heat exchanger co

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