A standard PTFE cartridge may use PP, PVDF, or other polymers for the cage, support, and end caps. An all-Teflon cartridge uses fluoropolymer materials throughout the wetted construction, including a PTFE membrane and PFA structural components. This provides broader chemical compatibility and better suitability for extremely corrosive or high-purity applications.

Yes, the all-fluoropolymer construction is intended for aggressive chemical environments involving strong acids, bases, oxidizers, and many organic solvents. However, compatibility should still be confirmed against the exact chemical, concentration, temperature, pressure, contact time, and seal material before use in a specific process.

Hydrophobic PTFE naturally repels water and is commonly used for gas, vent, and non-aqueous solvent filtration. Hydrophilic PTFE can be directly wetted by aqueous liquids and is better suited for aggressive water-based chemical filtration. The correct configuration depends on the process fluid and filtration objective.

The listed maximum operating temperature is 160°C. The allowable differential pressure decreases as temperature increases, with listed forward differential pressure values of 4.2 bar at 60°C, 3.2 bar at 110°C, and 1.5 bar at 160°C. Temperature and pressure should therefore always be evaluated together during cartridge selection.

Selection should consider process fluid, chemical concentration, filtration rating, required cleanliness, operating temperature, differential pressure, flow rate, cartridge length, end-cap type, hydrophobic or hydrophilic membrane requirement, and existing housing dimensions. For critical chemical applications, providing complete process conditions is the most reliable way to confirm the correct configuration.