Dual Vessel Combi Filter Unit

The new Dual Vessel Combi Filter Unit is based on 20 years experience manufacturing oilfield equipment. All new features are based on customer feedback combined in our unique twin vessel filter unit. HSE, efficiency and reliability are the key drivers for our product improvement and design. The Rudi Quick Opening Closure allows the operator to fast and safe open and close the filter housing for change out of filter elements. The unit is designed and built in accordance with DNV 2.7-1/ ISO 10855/ EN 1209 and also certified by DNV or Lloyds. Our standard DFCB24 unit has two housings of each 50 cartridges or each 4 bags and 6 valves for parallel, in series and by-pass operation.

The Dual Vessel Filter unit is also available as Dual Vessel Bag Filter Unit and Dual Vessel Cartridge Filter Unit.


  • Compact footprint
  • Quick opening closure lid
  • Simple Davit
  • Frame designed and certified
    according DNV 2.7-1/ ISO 10855/ EN 12079
  • All wetted parts SS316
  • Connections unions fig. 206
  • Standard 10 bar design to PED2014/68
  • PED module A for hazardous fluids


  • Fit on every on-/offshore installation
  • Quick and safe filter change out
  • Easy opening and closing
  • Designed to global on / offshore requirements
  • No corrosion issues
  • 100% leak-proof and easy sealing
    with uniform pressure
  • Suitable for most applications


  • Completion Fluids
  • Produced water
  • Work over fluids
  • Gravel pack fluids
  • Wellbore clean up fluids
  • (Bio) diesel
  • Surface water intake
  • Process water
  • Pre filtration RO
  • Frac fluids
  • Pipeline flushing
  • Waste water


  • Swing bolt closure
  • Pneumatic or Hydraulic closure
  • Stainless steel drip pan
  • Common drain line
  • 1 – 200 cartridges /21 bags per vessel
  • 6 inch High flow filter configuration
  • Carbon steel or Duplex Stainless Steel
  • Manifold sizes and connection type
  • Design pressure up to 6000 psi (400 bar)
  • Vessel linings: rubber, epoxy, glass flake, PU
  • ISO Corner Blocks

Unique design features


Our cartridge, bag filter and combi vessels are equiped with our unique quick opening and closure. Cartridges can be changed out much quicker and safer compare to the old fashioned swing-bolt system.

Inlet / Outlet union fig. 206.

Easy to lock safety gate in open and close position.

Safety protection at top DNV2.7-1 offshore lift frame. Heavy duty netting for easy and safe access to skid. Big improvement compare to old fashioned steel grid gates.

Document box, 100% waterproof, easy open/close.

Experience & Innovation

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