TThe sodium bromide defoamer tower of a pharmaceutical company originally used a graphite condenser to condense and recover tail gas. During operation, the graphite condenser produced slag, which affected the purity of the material and failed to meet the GMP standard requirements. The owner modified the graphite condenser and used our company's perfluorinated tube condenser. After the modification, the system operated stably, the heat exchange efficiency was greatly improved, and the condensation effect reached the expected effect.