Can the PP material withstand these solvents?
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Can PP tolerate DMF, DCM, trifluoroacetic acid, hexahydropyridine, trifluoroacetic acid, methyl tert-butyl ether, and amino acids? Are these solvents compatible with PP? Thank you! I am considering using a pneumatic diaphragm pump; those made of PP are relatively cheaper, while those made from other materials are more expensive. What’s most important is the ability to withstand solvents. Using PP might not be the best choice, but it can still last for two or three years
You can take a look at the \"Corrosion Data Selection Manual\", which provides information on selecting appropriate materials for various media. http://bbs.hcbbs.com/thread-1658039-1-1.html
No, change it to PTFE; it’s not expensive.
Pneumatic diaphragm pumps made entirely of PTFE are only available imported, and they are very expensive; they are probably the most costly diaphragm pumps around
It’s not possible; one can use ones with a PTFE lining.
What is the difference between those with a PTFE lining and those made entirely of PTFE? Also, is the PTFE lining present in every part of the material, and can it withstand various solvents?
One has a lining, while the other has all components made of PTFE. The part in contact with the medium is lined with PTFE.
There are many specifications for PP itself; it’s best to create your own test pieces. Pay attention to the temperature at which you use it. PTFE is not very expensive, and only the flow-through components and diaphragms are made of PTFE. The price for a DN50 model is around 6,000–10,000. However, the diaphragm in a diaphragm pump is also considered a consumable item
Domestically produced tetrafluoro pneumatic diaphragm pumps are available; they’re not anything rare. Many pump manufacturers can do it.
I’m comparing options and would prefer ones made entirely of PTFE, rather than those with a PTFE lining. But I really haven’t seen any domestic versions of such products, and imported ones are exorbitantly expensive