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Parker Velcon VF-31E Filter Housing, for Aquacon Filter Cartridges
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Parker Velcon VF-31E Filter Housing, for Aquacon Filter Cartridges


The VF-31E is a versatile filter housing designed for use with several different high performance Aquacon filter cartridges. Cartridges are offered for the optimum filtration of aviation fuel (see caution on reverse side), gasoline, diesel fuel, oils, compressed air, and other gasses. Refer to the Cartridge Selection Table for details.

Aquacon filters eliminate water contamination problems by removing water from fuels, oils, and gasses. Filtered water is chemically locked into the cartridge’s inner super-absorbent media.

As a cartridge reaches its water holding limit, the media expands very rapidly and restricts the flow of unfiltered material. This causes an increase in the differential pressure which signals the operator to replace the cartridge. When filtering fuels or compressed air, a saturated Aquacon cartridge will completely block the flow until it is replaced.

Aquacon cartridges are also excellent dirt filters. Silt, rust, and other particulates are removed by the cartridge’s outer filter media. One-half, five, and 25 micron rated cartridges are available for use with fuels and oils. The ACA-210 cartridge, for use with compressed air and other gasses, has a 1 micron rating.


  • Aquacon cartridges remove free and emulsified water from fuels to less than 5ppm.
  • Filtered water is chemically locked in and can’t be squeezed out.
  • Provides Protection against 'slugs' of water.
  • Pressure Increase signals cartridge change.
  • 0.5 Micron Particle Protection @ 98%+ Efficiency.


  • Kerosene
  • Diesel
  • Biodiesel
  • Gasoline

NOTE: For non-EI qualified applications. Housing does not meet EI1596 or EI1581 qualifications.

CAUTION: Do not use Aquacon absorbent cartridges (AC, ACO or AD Series) with pre- mixed jet fuel containing anti-icing additives, or with gasoline/alcohol blends.

Housing Specification (Supplied Without Cartridge)
Max. Operating Pressure150 PSI
Material: HeadCast Aluminium
Material: BowlCarbon Steel, TGIC-Polyester Coated Interior and Exterior
Inlet/Outlet Connection Size1" NPT
Distance Between Faces4"
Mounting Holes in Head1/4"-20 NC
GasketBuna-N (Spare Part No. G-0995)
Height: Without Petcock13.50"
Height: With Petcock14.50"
Weight: Bare3lb,15oz
Weight & Dimensions: Packaged4lb,15oz // 2.16 Kg, 37 x 11 x 11 cm.
Hardware IncludedBuna-N Lid Gasket, Mounting Brackets, 1/8" NPT Plug (for fuel and oil), 1/8" NPT Petcock (for air, gas, and aviation fuel)
Cartridge Selection Table
Model NumberTypeMediaApplicationMicron RatingCollapse Pressure (PSI)Max. Flow Rate (US GPM)Max. Op. Temp.Data SheetBrochure Page
ACO-21001RAquaconJet Fuel & AvgasDirt & Free Water0.5 @ Nom. 15250°F / 121.1°C16815
AC-21005AquaconGasolineDirt & Free Water5 @ Nom. 15250°F / 121.1°C15825
FOG-21005PaperGasoholDirt5 @ Nom. 15 N/A5
AD-21025AquaconDiesel & BiodieselDirt & Free Water25 @ Nom. 15 1655 
AC-21005AquaconOilsDirt & Free Water5 @ Nom. Varies with oil viscosity 1582 
AD-21025AquaconOilsDirt & Free Water25 @ Nom. Varies with oil viscosity 1655 
ACA-210AquaconAir/GasDirt & Free Water1 @ Nom. 100 SCFM @ 100 PSIg 1689 
FOS-210PLP5Synthetic FilterAir/GasDirt0.5 @ Nom. 100 SCFM @ 100 PSIg N/A 

Download Parker Velcon Aviation Vessels And Housings - Brochure PDFDownload Parker Velcon Aviation Vessels And Housings - Brochure PDF

Download Parker Velcon Filter Housing VF-31E - Brochure PDFDownload Parker Velcon Filter Housing VF-31E - Brochure PDF

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Product CodePARTOP6O35

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