Hydrophobic PVDF naturally repels water and is generally better suited for gas, vent, and non-aqueous filtration. Hydrophilic PVDF can be readily wetted by water-based fluids and is more appropriate for aqueous liquid filtration. The correct choice depends mainly on the process fluid, required retention performance, and whether direct water wettability is needed.

Yes, hydrophobic PVDF offers broad compatibility with many acids, bases, and organic solvents, making it suitable for a range of fine chemical and industrial filtration processes. However, compatibility should be confirmed according to the exact chemical, concentration, operating temperature, exposure time, seal material, and complete cartridge construction before use.

The correct micron rating depends on the required particle or microbial retention, contamination load, flow rate, process cleanliness target, and downstream requirements. Fine grades such as 0.22 μm are commonly selected for tighter retention, while larger pore sizes may be used for clarification or prefiltration. Selection should also consider pressure drop and required throughput.

For the listed FPV Series, the specified steam sterilization condition is 123°C for 30 minutes. Actual sterilization suitability depends on the complete cartridge configuration, support structure, seal material, sterilization cycle, and number of repeated exposures. The selected cartridge should therefore be confirmed against the intended sterilization procedure.

Replacement should be based on validated process limits rather than a fixed operating time. Typical indicators include increasing differential pressure, reduced gas or liquid flow, longer processing time, or failure to meet required retention performance. Actual service life depends on contamination load, pore size, chemical exposure, operating temperature, and sterilization history.