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The main series of corrosion-resistant chemical pumps produced in China currently include the FB type of corrosion-resistant chemical pump, FB and AFB stainless steel corrosion-resistant chemical pumps, IH type stainless steel chemical pumps, IHF type fluoroplastic chemical pumps, FSB type fluoroplastic chemical pumps, CQB chemical magnetic drive pumps, IMD chemical magnetic drive pumps, FZB chemical self-priming pumps, etc. As a professional domestic manufacturer of chemical pumps, Jiangsu Liquiquan Pump Valve Manufacturing Co., Ltd. produces virtually all the corrosion-resistant chemical pumps available on the market. These chemical pumps are widely used in industries such as chemicals, metallurgy, pharmaceuticals, and chemical foil manufacturing, playing an important role in various industrial applications. What kind of pump is a corrosion-resistant chemical pump exactly? How is it classified, and what is its working principle? Next, the technical department of Jiangsu Liquiquan Pumps and Valves has compiled this information to share with everyone. Corrosion-resistant chemical pumps are suitable for pumping, circulating, and discharging various chemical solutions and wastewater containing acidic or alkaline corrosive substances. They are widely used in industries such as electroplating, electronics, chemicals, leather processing, dyeing and printing, as well as in the treatment of waste gases. The pump head of corrosion-resistant chemical pumps is connected to the motor using a coupling, and its high-power models are favored by users who require high flow rates. Corrosion-resistant chemical pumps are classified according to their working principle as follows: 1. Positive displacement pumps – These pumps draw in and discharge liquid by causing the working volume to increase and decrease periodically due to the movement of their working components, and they increase the pressure energy of the liquid directly through the compression exerted by these components. Depending on the way the moving parts move, they are further divided into reciprocating pumps and rotary pumps. Based on the structure of their moving parts, they are classified into piston pumps, plunger pumps, gear pumps, screw pumps, vane pumps, and water ring pumps. 2. Impeller pump: An impeller pump transfers mechanical energy to the liquid being transported by using an impeller to drive the liquid to rotate at high speed. Based on the differences in the structure of the pump’s impeller and flow channels, they can be classified as: (1) Centrifugal pumps ； (2) Axial flow pump ； (3) Mixed-flow pump ； (4) Vortex pump 3. Jet pump: A jet pump relies on a high-speed jet generated by the working fluid to draw in fluid, and then increases the energy of the drawn-in fluid through momentum exchange. Classified by the prime mover of the driving pump: (1) Electric pump ； (2) Turbine pump ； (3) Material of diesel engine pumps and corrosion-resistant chemical pumps: Corrosion-resistant materials are generally used, such as glass fiber, PVC, fluoroplastics, and stainless steel; these pumps are suitable for pumping corrosive liquids from bottles, barrels, tanks, ponds, or other containers. Working principle of corrosion-resistant chemical pumps: Before operation, the pump body and the feed pipe must be filled with liquid to create a vacuum condition. When the impeller rotates rapidly, its blades force the liquid to spin at high speed; under the effect of centrifugal force, the liquid is ejected from the impeller. Once the water inside the pump is expelled, a vacuum area is formed in the center of the impeller. The liquid material is forced under atmospheric pressure through the pipeline network into the feed pipe. By repeating this cycle, continuous conveying can be achieved. Features of corrosion-resistant chemical pumps: Corrosion-resistant chemical pumps offer advantages such as stable and reliable performance, good sealing properties, an attractive design, and ease of use and maintenance. Corrosion-resistant chemical pumps are a type of pump that is widely used in various processes within the chemical industry. Jiangsu Liquiquan Pumps and Valves has been dedicated to the research, development, and manufacturing of such pumps for many years, and possesses extensive expertise in this field. Due to the special nature of this pump, it is necessary to consider not only its corrosion resistance but also its efficiency in transferring fluids. Jiangsu Liquiquan recommends that before purchasing a chemical pump, users should have a thorough understanding of the operating conditions and the medium being transported, as well as make an informed decision regarding the appropriate product choice; otherwise, the pump may have a short service life or cause problems in the production process. (Writing by SUNMEDIA)