Accessories

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In-line filters and elements

Alicat mass flow meters and controllers require gases to be clean and free from large particulates. In-line sintered filters screw directly into the threaded inlet process connection of your device and prevent large particulates from entering the measurement head of the instrument. Replacement filter elements are also available and come with fresh O-rings.

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We recommend the following maximum particulate sizes for your mass flow instrument (flow range dependent):

  • Use filters for devices ranged from 0-1 SCCM or lower.
  • Use 20μ filters for devices ranged from 0-2 SCCM or 0-20 SLPM.
  • Use 40μ filters for devices ranged from 0-50 SLPM or higher.
Filters for 10-32 SAE fittings (5μ and 20μ)
The following options are available with 10-32 SAE fittings:

  • 5μ filters (Brass/Buna or 316L/Buna)
  • 20μ filters (Brass/Buna or 316L/Buna)
Alicat #10-32 UNF in-line filter (5 or 20 microns)

10-32 in-line filter

Filters for 1/8 NPT fittings (15μ and 20μ)
The following options are available with 1/8″ NPT fittings:

  • 20μ filter + 20μ filter element
  • 20μ filter element (replacement; includes fresh O-rings)
  • Compression (316L) 15μ filter
Alicat 1/8″ NPT in-line filter (ILF-1/8-20, 20 microns)

1/8″ NPT in-line filter

Filters for 1/4 NPT fittings (15μ and 40μ)
The following options are available with 1/4″ NPT fittings:

  • 40μ filter + 40μ filter element
  • 40μ filter element (replacement; includes fresh O-rings)
  • Compression (316L) 15μ filter
Alicat 1/4″ NPT in-line filter (ILF-1/4-20, 20 microns)

1/4″ NPT in-line filter

Filters for 1/2 NPT fittings (40μ)
The following options are available with 1/2″ NPT fittings:

  • 40μ filter + 40μ filter element
  • 40μ filter element (replacement; includes fresh O-rings)
Alicat 1/2″ NPT in-line filter (ILF-1/2-40, 40 microns)

1/2″ NPT in-line filter

Filters/elements for 3/4 NPT fittings (40μ)
The following options are available with 3/4″ NPT fittings:

  • 40μ filter + 40μ filter element
  • 40μ filter element (replacement; includes fresh O-rings)
Alicat 3/4″ NPT in-line filter (ILF-3/4-40, 40 microns)

3/4″ NPT in-line filter

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