IDE Outdoor Membrane Guide | Internal Pressure Membrane vs External Pressure Membrane

IDE’s Outdoor Ultrafiltration Membrane Series features two types of membranes: Internal Pressure and External Pressure.
Each has a different method of trapping impurities and cleaning the membrane.
Both filters offer filtration down to 0.01 micron, helping remove sediment, rust, impurities and fine suspended particles from water.

🔍 Internal Pressure Membrane Filter | HPVC Material
Impurities are trapped inside the membrane
During filtration, impurities are retained inside the membrane.
Regular backwashing is required to flush out accumulated impurities and help maintain filtration performance.

🔍 External Pressure Membrane Filter | PVDF Material
Impurities accumulate on the outer surface
During filtration, impurities mainly accumulate on the membrane’s outer surface.
When water flow decreases noticeably, the filter can be removed and manually cleaned. Its user-friendly design allows easy cleaning without additional tools.

🎬 Watch the video to learn how these two ultrafiltration membranes work and how to clean them.