IH chemical centrifugal pump for anti-corrosion chemical, petroleum, metallurgy, food, pharmaceutical and other departments to transport temperature -20 ℃ ~ +105 ℃ corrosive media. IHF centrifugal pump designed according to international standards, the metal shell lined with poly pump FEP (F46), pump cover, impeller and shaft are metal inserts with fluorine plastic sintering pressing outsourcing, the use of outside-mounted seal bellows mechanical seals, static ring selected 99.9% (alumina ceramic or silicon nitride), ring the use of PTFE filler material, which is characterized by superior performance and reliable corrosion-resistant seal.