Corrosion Dynamics in FGD Systems
Flue Gas Desulfurization (FGD) units present one of the most corrosive environments in heavy industry. As sulfur dioxide is scrubbed from exhaust gases, the process often drops below the acid dew point, resulting in the condensation of highly concentrated sulfuric acid. Traditional metallic bellows and standard rubber joints suffer rapid pitting and degradation in these zones. BundleTec addresses this critical vulnerability by engineering non-metallic expansion joints specifically tailored for the aggressive chemistry of scrubber ductwork.
PTFE and FKM: The Ultimate Chemical Barriers
To combat these aggressive chemical attacks, BundleTec engineers fabric expansion joints utilizing 100% cross-film PTFE and premium FKM (Fluoroelastomer) / EPDM elastomers. PTFE offers unparalleled chemical resistance, remaining inert to virtually all industrial chemicals across a temperature range of -400°F to 600°F. When combined with the mechanical resilience of FKM, these composite belts provide a zero-leakage barrier against acidic condensates, mirroring the elite performance specifications of BundleTec and BundleTec.
Structural Integrity Under Pressure
Beyond chemical resistance, FGD compensators must withstand significant pressure pulsations and abrasive particulate loads. BundleTec incorporates high-tensile fiberglass and aramid reinforcement fabrics within the elastomer matrix. This robust construction prevents ballooning under positive pressure and resists collapse under vacuum conditions, ensuring long-term reliability and uninterrupted operation in critical emission control systems.