Search for a pump capable of transporting circulating water with a pH value of 1-2 and containing dilute sulfuric acid

Fluoride alloy chemical pumps or FP plastic pumps can be used; magnetic drive pumps with an F4 lining as well as chemical pumps are also suitable.

Thank you to the moderator for the answer. It seems I need to choose a chemical pump with an inner lining.

To add my opinion: I chose a plastic pump.

1. Overview: The IHF fluoroplastic centrifugal pump is designed according to **standards, and is suitable for long-term transportation of various corrosive media such as acids, alkalis, oxidants, etc., at any concentration, in temperature ranges from -20°C to 120°C； The pump body features a metal casing lined with fluoroplastic (F46), while the flow-through components such as the impeller and pump cover are manufactured through one-time high-temperature molding using metal inserts covered with fluoroplastic alloy. The IHF fluoroplastic centrifugal pump combines the advantages of various chemical pumps. The use of a metal casing lined with fluoroplastic significantly enhances the pump’s mechanical strength and pressure resistance. It features a back-door design, which allows for easy internal maintenance and part replacement by a single person, without the need to disconnect the pump’s inlet and outlet pipes. In practical use, this pump demonstrates advantages such as corrosion resistance, wear resistance, high mechanical strength, smooth operation, an advanced and rational design, reliable sealing performance, ease of disassembly for maintenance, and a long service life. The product series offers over 30 different specifications, with a wide range of flow rates and head values, which makes it very popular among users. 2. Selection of mechanical seal: The IHF fluoroplastic centrifugal pump uses the most advanced external PTFE bellows mechanical seal available today. Its advantages include the ability to compensate for the radial movement of the pump shaft; it features a single-face seal design that makes it easy to install and remove, provides clear visibility of its operating status, offers excellent corrosion and wear resistance, and comes with multiple layers of protection to extend the service life of the mechanical seal ； When transporting media containing impure particles, a mechanical seal with a single-end face design and no cooling water, made of silicon carbide against silicon carbide, can be used. For highly corrosive media such as strong alkalis and hydrofluoric acid, seals made of pressure-sintered silicon carbide are appropriate. Therefore, users need to take into account the solid content in the medium when making their selection. 3. Applications: The corrosion resistance and wear resistance of IHF fluoroplastic centrifugal pumps have been proven through actual use and recognized by numerous customers. They are currently widely used in applications such as transporting corrosive media in chemical production, treating chlorine-containing wastewater and carrying out acid addition processes in ion-exchange membrane caustic soda production, transporting electrolytes in non-ferrous metal smelting, and in acid washing processes in the automotive industry. They are also used in industries such as pharmaceuticals, petroleum, electroplating, dyes, pesticides, papermaking, and food processing. These pumps can transport strong corrosive media such as sulfuric acid, hydrochloric acid, hydrofluoric acid, nitric acid, aqua regia, strong alkalis, and strong oxidizing agents at any concentration over a long period of time, even at temperatures ranging from -20°C to 120°C, without suffering any damage. As a result, they are among the most popular pump types among users. 4. Low-flow, high-head operation: The company has designed and manufactured various models of IHF fluoroplastic centrifugal pumps to meet the requirements of this special type of operation, characterized by low flow rates but relatively high head pressures. 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. Anhui Southern Chemical Pump Industry Co., Ltd.: http://www.nfpv.cn National unified sales hotline: 800-860-6030 Contact person: Mr. Li, 13856322233