IHF centrifugal pump is designed as per the international standard. Its body adopts the metal casing with FEP (F46) inner lining; its bonnet,impeller and bushing all adopt the integrated sintering, pressing and forming with metal insert and fluoroplastic casing while the shaft gland adopts the external bellows mechanical seal; its stator ring adopts 99.9% (alumina ceramics or silicon nitride); its rotary ring adopts F4 packing, which is featured by resistance to corrosion and abrasion as well as excellent and reliable seal ability. This pump is applicable for transporting the medium with strong corrosion in rigid conditions including any concentrations of sulphuric acid, hydrochloric acid, acetic acid, hydrofluoric acid, nitric acid,aqua regia, strong alkali, strong oxidizer, organic solvent and reducer. It is one of the latest corrosion-resistance units in. the world at present. Its biggest advantages include advanced and reasonable structure, strong resistance to corrosion, airtight and reliable seal ability, stable operation, low noise and long service life.