Dual Vessel Combi Filter Unit


The Dual Vessel Combi Filter Unit is based on 25 years of experience in manufacturing oilfield equipment. All new features are based on customer feedback and combined in our unique twin vessel filter unit. HSE, efficiency and reliability are the key drivers for our product improvement and design. For the vessel closure you can choose the Rudi Quick Opening Closure. This allows the operator to open and close the filter vessel quickly and safely for changing filter cartridges and/or bags. Or you can choose the standard swing bolt closure. 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 with 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.

Rudi Quick Opening Closure 2.0

Rudi Quick opening closure

Swing bolt closure

Swing bolt closure


Dual vessel cartridge unit onshore

Duplex cartridge filter unit for land operations SS316 housing and heavy duty frame

Dual cartridge filter for land operations, SS316 housing and heavy duty frame

Dual vessel cartridge unit with offshore DNV swing bolts

Dual vessel cartridge unit DNV with swing bolts

Dual Vessel Bag Unit High Flow

Dual vessel bag unit with 6″ connection, drip pan and drain manifold line

high flow dual vessel with magnetic bag

Large dual bag filter unit with 12 bags per housing, carbon steel


  • Compact footprint
  • Quick opening closure lid
  • Simple Davit
  • Frame designed and certified according DNV 2.7-1/ISO 10855/EN12079
  • All wetted parts SS316
  • Connections unions fig.206, 100% leakproof
  • Standard 10 bar design to PED2014/68
  • PED module A for hazardous fluids


    • 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
    • Wastewater


      • Swing bolt closure / rudi quick opening closure
      • Pneumatic or Hydraulic closure
      • Stainless steel drip pan
      • Drain manifold line
      • Construction materials: carbon steel coated, (super) duplex
      • 1-200 cartridges/21 bags per vessel
      • 6 inch High flow filter configuration, flow rate up to 1000 m3/hr (95 BPM)
      • 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


        Inlet/outlet union fig. 206

        easy-lock-safetygate DFC24

        Easy to open and close safety gate


        Safety protection at top DNV 2.7-1 offshore lift frame. Heavy duty netting for easy and safe access to skid. Big improvement compare to old fashioned steel grid gates

        document holder DFC24

        Document box, 100% waterproof, easy to open and close

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