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“The term “reused water” originated in Japan. There are various definitions for it; in wastewater treatment contexts it is referred to as “reclaimed water”, while in industrial settings it is called “recycled water”. Generally, water quality is used as the criterion for making such distinctions. It mainly refers to non-potable water that results from the treatment of urban or domestic wastewater to meet certain water quality standards, allowing it to be reused within a certain range. The IHF fluoroplastic centrifugal pumps developed and produced by Anhui Southern Chemical Pump Industry Co., Ltd. are suitable for transporting acidic and alkaline wastewater. Resistant to acids and alkalis, with anti-corrosion and leak-proof properties – completely free from corrosion. Company website: http://www.nfpv.cn 1. Structure: The IHF fluoroplastic alloy centrifugal pump is suitable for long-term transportation of various corrosive media of any concentration, including acids and oxidizing agents, at temperatures ranging from -20°C to 200°C. Its pump body features a metal casing, along with an inner lining made of fluoroplastic (F46 or PFA) in a tortoise-shell mesh structure; this design significantly enhances the bonding between the metal casing and the fluoroplastic lining, providing advantages such as resistance to cracking, bulging, and delamination. Both the impeller and the pump cover are made by pressing metal inserts covered with fluoroplastic. The IHF fluoroplastic alloy centrifugal pump combines the advantages of various chemical pumps; it features excellent corrosion resistance, high mechanical strength, an advanced design, reliable performance, ease of use and maintenance, high efficiency, and energy savings ； The product series offers over 30 different specifications, with a wide range of flow rates and head pressures. The corrosion and wear resistance of IHF fluoroplastic alloy centrifugal pumps has been proven through actual use and recognized by a wide range of users. They are currently widely applied in: the transportation of corrosive fluids in chemical manufacturing, the treatment of chlorine-containing wastewater and acid addition processes in ion-exchange membrane caustic soda production, the transportation of electrolytes in non-ferrous metal smelting, pickling processes in the steel industry, as well as in numerous other industries such as pharmaceuticals, petroleum, thermal power generation, electroplating, dyes, pesticides, papermaking, food processing, and textiles. It can transport strong corrosive media such as sulfuric acid, hydrochloric acid, hydrofluoric acid, nitric acid, aqua regia, strong alkalis, strong oxidizing agents, organic solvents, and reducing agents at any concentration over a long period of time at temperatures ranging from -20°C to 200°C, without suffering any damage; it is thus the most popular corrosion-resistant centrifugal pump among users today. 2. Selection of mechanical seal: For clean acid and oxidizing medium applications, a single-face mechanical seal without cooling water – WB2 – is suitable. Mechanical seal with a single face and no cooling water for media containing impurity particles – siliconized graphite 169. 3. Design features: The IHF fluoroplastic alloy centrifugal pump is designed in accordance with international standards. The metal pump casing is lined with fluoroplastic (F46 or PFA) using a turtle-shell mesh structure, which significantly enhances the bonding between the metal casing and the lining; this results in advantages such as resistance to cracking, bulging, and delamination ； The metal casing is also sufficient to bear the weight of the pipeline and resist mechanical impacts. Both the impeller and the pump cover are made by pressing metal inserts covered with fluoroplastic. The shaft seal utilizes an advanced external bellows-type mechanical seal; the stationary ring is made of 99.9% alumina ceramic, while the rotating ring is made of tetrafluoroethylene-filled material, giving it excellent corrosion and wear resistance as well as good sealing properties. It features a pull-back structure, allowing one person to easily carry out routine internal maintenance and part replacement without having to remove the pump’s inlet and outlet pipes. 4. High-temperature medium conditions: The IHF fluoroplastic centrifugal pump uses a lattice-patterned lining made of high-temperature resistant, soluble polytetrafluoroethylene (PFA) in applications where the fluid being transported has a temperature exceeding 120°C and is corrosive. Other components involved in the flow of fluid, such as the impeller and pump cover, are manufactured by integrating metal inserts covered with PFA. Soluble polytetrafluoroethylene (PFA) – a copolymer of polytetrafluoroethylene and perfluoropropyl vinyl ether, it retains all the excellent properties of polytetrafluoroethylene. It can be used at temperatures ranging from -180 to 260°C over long periods of time, boasts good mechanical and electrical insulation properties, outstanding heat resistance, and the lowest friction coefficient. The IHF fluoroplastic centrifugal pumps manufactured using this type of fluoroplastic can transport, over long periods of time and under high-temperature conditions, strong corrosive fluids such as sulfuric acid, hydrochloric acid, hydrofluoric acid, nitric acid, aqua regia, strong alkalis, strong oxidizing agents, organic solvents, and reducing agents, without suffering any damage. 5. Low-flow, high-head operation: In response to the requirements of this special type of operation, the company has designed and manufactured various models of IHF fluoroplastic centrifugal pumps with a low design flow rate but a relatively high head. In practical use, it solves the problem of using large pumps for tasks that require smaller pumps, thereby **saving energy for users and making operation simpler. The company has designed and produced fluoroplastic pumps in various specifications to meet the special requirements of low flow rates and high head; these pumps have a low design flow rate but a relatively high head. In practical use, it solves the problem of using large pumps for tasks that require smaller pumps, thereby **saving energy for users and making operation simpler. The main products include IHF fluoroplastic centrifugal pumps and IMD fluoroplastic magnetic pumps. For example, the model of an IMD fluoroplastic magnetic pump is IMD40-25-185F; it has a flow rate of 1 cubic meter per hour, a head of 39 meters, and a power consumption of 4 kilowatts. Another example is the IHF25-25-160 fluoroplastic centrifugal pump, which has a flow rate of 0.8 cubic meters per hour, a head of 32 meters, and a power consumption of 2.2 kilowatts. The IHF40-25-250 fluoroplastic centrifugal pump has a flow rate of 6 cubic meters per hour, a head of 80 meters, and a power consumption of 7.5 kilowatts. The above parameters are based on the company’s design standards; however, the company can make appropriate adjustments to these parameters according to the user’s requirements. The company’s website is http://www.nfpv.cn. The page related to IHF fluoroplastic centrifugal pumps can be found at http://www.nfpv.cn/chanpin-1.asp?id=49. The national unified customer service hotline is 800-860-6030