Sea water pump
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What metal materials can resist seawater corrosion? Used for pump flow-through components; moreover, can non-metallic fluoroplastics withstand seawater?
There are special metals; do you need the material or the processed components, and what is the quantity required?
This material is available, but it’s very expensive. Could you provide more detailed information?
For metals, it depends on the chloride ion concentration; two-way stainless steels such as F53 and F55 are preferable
Non-metallic fluoroplastics can withstand seawater for a short period of time, but definitely not for a long time!
You can look for a pump selection manual; just search for it on Baidu.
Polymer coatings can be applied for protection! The anti-corrosion protection for the circulation pumps that we installed at the coastal power plant was made using polymer materials; it has been in use for several years now without any quality issues.
304 and 316 are resistant to seawater corrosion; non-metallic plastics such as PVC, FRP, PP, and PTFE are of course even more resistant
Fluoroplastics are definitely a good choice when it comes to corrosion resistance. But over time, there is a risk of the seawater crystallizing, which can then wear out the mechanical seal. This leads to a shorter service life of the mechanical seal
Depending on the chloride ion concentration and water temperature, options include nickel-aluminum bronze alloys, duplex steels, and super duplex steels; for smaller experiments or devices, there are even more choices available, such as fluoroplastics and polypropylene