Stainless Steel Bag Filters – ProBag® Series

Podinox ProBag® Series Bag Filters are a smart and proven choice for liquid filtration applications involving high flow rates and heavy contamination loads. Due to their simple design, low operating cost, and reliable performance, these systems are widely used across multiple industries including water and wastewater treatment, chemical processing, paint and resin production, as well as oil and gas operations.

Traditionally considered a basic solution for non-critical services, bag filtration has evolved significantly with modern filter media technologies such as nanofiber layers. Today, bag filters are capable of removing particles down to 1 micron with high efficiency.

Unlike cartridge filters, which are designed for fine polishing and final filtration, bag filters excel at removing coarse and bulk contaminants. Our housing design enables bag replacement in just a few minutes, minimizing downtime and maximizing process availability.

Our bag filter housings are manufactured from heavy-gauge stainless steel sheets, using SS304 for water and non-corrosive fluids, and SS316L for acids, aggressive chemicals, and pharmaceutical applications. All welds are executed and finished in accordance with ASME standards, and internal surfaces are polished to prevent product adhesion.

Inlet Design Options:

• Top Entry: The fluid enters directly through the top cover into the bag. This configuration provides superior sealing and virtually eliminates bypass.
• Side Entry: The fluid enters through the side nozzle and is directed into the bag. This design offers a lower overall height and is suitable for space-restricted installations, although cleaning access is slightly more limited.