The selection of materials for a thermoplastic Plastic Pump(KEXON) is highly relevant for at least two reasons. One is the very broad range of polymers available. The other is that, unlike the situation with pumps made of metal, the engineer does not consult corrosion tables to help make the choice — aparticular plastic either works for a given situation or it doesn't, and that information is readily available. In spite of the breadth of the field, most thermoplastics used for pumps fall into four basic categories: vinyl, polypropylene, polyethylene and fluoroplastic.
When one considers use of those polymer families, a key parameter is the service temperature. Some of the temperatures cited here may seem conservative. That is because plastic components in pumps must retain not only their shape but also adequate mechanical strength.
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