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DUOLINE multi-bag filter housings are designed with two single bag filter housings fitted together at the inlet and outlet by a butterfly valve or ball valve. This increases flow capacity and allows the filtration process to run continuously even during filter bag change-outs.

# Bags
Run & standby


  • Can be equipped with the most advanced TOPLINE single bag filter housing or the SIDELINE single bag filter housing for a greater range of applications
  • System arrangement assures continuous flow rates. One unit can be taken off-line in sequence for filter bag change-outs without having to take the other filter unit off-line
  • Swing bolt cover for quick, easy filter bag change-outs. The TOPLINE single bag filter housing features a domed cover. SIDELINE single bag filter housings covers’ feature an integrated ergonomic handle
  • TOPLINE and SIDELINE models feature extended five year warranties and are designed in accordance with “AD 2000-Merkblätter”, EN 13445 and PED n
  • Smooth, bead-blasted finish makes it easy to completely clean the interior

Key DUOLINE bag filter applications:

  • Automotive
  • Food and Beverage
  • Chemical Processing
  • Paints, Inks, Resins and Coatings
  • Electronics
  • Petrochemicals
  • Municipal Water Treatment
  • Industrial Water Treatment
  • Pulp and Paper
  • Pharmaceutical
  • Lubricants, Metalworking Fluids
  • Solvents

For Continuous and High Flow Rate Applications

An integral valve linkage assembly is available for DUOLINE bag filter housings with butterfly valves that permits operation of the valves with a single handle.

DUOLINE bag filter housings are available in carbon steel or stainless steel for size 02 (double length) filter bags. End connections are either 2" or 3" flanged.

Questions before you buy