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What material is suitable to choose?

2019-09-02View Original

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Our waste contains sulfuric acid at concentrations ranging from 65% to 5%, and the temperature can reach up to 80 degrees. We want to transport it using pumps and pipes; what materials would be suitable for the pumps and pipes in this case? Thank you
Reply #22019-09-02
Pumps made of fluoroplastic materials can be used
Reply #32019-09-02
Material F46 should work; it can withstand temperatures of around 120 degrees and is resistant to all types of corrosive substances. http://www.scpump.net/NewsDetail.aspx?ID=30
Reply #42019-09-02
Can a fluorine-lined pump achieve a pressure of 0.8 MPa? The key issue is that fluorine-lined pumps tend to break easily.
Reply #52019-09-02
The metals are Hastelloy B, Hastelloy C, or zirconium
Reply #62019-09-03
Fluorinated lining pipes will suffice; for low head, use FSB pumps or fluorinated lining magnetic drive pumps, while for high head, use diaphragm pumps
Reply #72019-09-09
Both sulfuric acid pumps and hydrochloric acid pumps use polyfluoroalloy ethylene – abbreviated as fluoropolymer F46 – as a lining to transport various corrosive liquids. Fluoroplastic pipelines can be used as conduits for transporting corrosive or viscous media, as well as for transporting corrosive gases, exhaust pipes, and steam pipes. Examples include fluoropolymer magnetically driven pumps, fluoropolymer centrifugal water pumps, and fluoropolymer self-priming pumps. Due to F46’s low mechanical strength, poor pressure resistance, and high linear expansion coefficient, its mechanical strength decreases as the temperature rises, making it prone to deformation; these issues become even more pronounced when subjected to high temperatures and pressures. Therefore, it is essential to reinforce the outside of F4 pipes as well as the components that are vulnerable to damage, using fiberglass or metal pipes. The connections between them all use F46 tube-type closely lined pipes, that is, fiberglass is bonded to the F4 tube to form a single unit. It can overcome failures caused by different linear expansion coefficients of various materials, can be used as a transmission pipeline for systems under negative pressure, and can prevent corrosion of the pipeline by steam and the environment.   Since some fluids often experience friction with the pipe walls at certain flow rates, which can lead to the generation of static electricity and subsequent breakdown of the pipe walls, it is necessary to take preventive measures such as using conductive materials with equal potential, or adding an appropriate amount of carbon ink during the manufacturing of the inner pipes and their vulnerable components, in order to prevent static electricity and reduce dimensional changes caused by thermal expansion and contraction.
Reply #82019-09-09
Both sulfuric acid pumps and hydrochloric acid pumps use polyfluoroalloy ethylene – abbreviated as fluoropolymer F46 – as a lining to transport various corrosive liquids. Fluoroplastic pipelines can be used as conduits for transporting corrosive or viscous media, as well as for transporting corrosive gases, exhaust pipes, and steam pipes. Examples include fluoropolymer magnetically driven pumps, fluoropolymer centrifugal water pumps, and fluoropolymer self-priming pumps. Due to F46’s low mechanical strength, poor pressure resistance, and high linear expansion coefficient, its mechanical strength decreases as the temperature rises, making it prone to deformation; these issues become even more pronounced when subjected to high temperatures and pressures. Therefore, it is essential to reinforce the outside of F4 pipes as well as the components that are vulnerable to damage, using fiberglass or metal pipes. The connections between them all use F46 tube-type closely lined pipes, that is, fiberglass is bonded to the F4 tube to form a single unit. It can overcome failures caused by different linear expansion coefficients of various materials, can be used as a transmission pipeline for systems under negative pressure, and can prevent corrosion of the pipeline by steam and the environment.   Since some fluids often experience friction with the pipe walls at certain flow rates, which can lead to the generation of static electricity and subsequent breakdown of the pipe walls, it is necessary to take preventive measures such as using conductive materials with equal potential, or adding an appropriate amount of carbon ink during the manufacturing of the inner pipes and their vulnerable components, in order to prevent static electricity and reduce dimensional changes caused by thermal expansion and contraction.
Reply #92019-11-26
The main advantage is having sufficient funds, allowing the use of titanium material, which is corrosion-resistant

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