The selection of filter plate molds for filter presses requires multiple factors.

Requirements of the pharmaceutical industry
Hygiene standard ‌ : must comply with GMP standards, with a smooth surface and no dead corners, facilitating cleaning and disinfection, and preventing drug residues and cross-contamination
Material selection ‌ : 316L stainless steel or food-grade polypropylene (PP) is preferred, which is corrosion-resistant and non-toxic and harmless
Filtration accuracy ‌ : It needs to reach the range of 5-30 microns to ensure the purity of the drug
Degree of automation ‌ : It is recommended to be equipped with automatic compression and release functions to reduce manual intervention ‌
2. Requirements of the chemical industry
Corrosion resistance ‌ : It needs to withstand acid and alkali media. Polypropylene (PP) can resist strong acids such as hydrofluoric acid, while PVDF material can withstand temperatures up to 150℃ but has poor alkali resistance
Structural strength ‌ : In the petrochemical field, it needs to withstand high pressure of 1.6-2.5MPa. It is recommended to use stainless steel or reinforced polypropylene
Safety design ‌ : Fine chemicals need to take into account explosion-proof design and sealing performance to prevent the leakage of harmful substances ‌
3. Requirements of the food industry
Food safety ‌ : The material must be FDA certified, and the parts in contact with food should be sealed with silicone
Temperature resistance performance ‌ : It needs to withstand high-temperature steam cleaning at 120℃. The filter plate is recommended to adopt a point-shaped conical protrusion structure
Easy cleaning ‌ : The quick-installation design makes disassembly and cleaning convenient. Some models are equipped with a backwashing system ‌