DEFU is a professional diaphragm pump manufacturer in China. High quality & 3days fast delivery time are our advantage.
The valve ball materials are Teflon, Santoprene, EPDM, ect. It has a very low friction coefficient, excellent self-lubrication, good corrosion resistance, dimensional stability, and no deformation.
valve seat: The valve seat materials are Teflon, Santoprene, Buna-n, ect.
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