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Product CategoriesFlow Meters - RotametersELF Purge flow metersEFR3 Constant flow regulatorEM-series flow metersEFR14 Constant flow regulatorEH-series flow metersEB-series flow metersELC Purge flow metersEMC-series flow metersEHC-series flow metersEBC-series flow meters

Esko ELF Purge Flow Meters

The ELF purgemeter represents the latest design in compact flow meters for the measurement of small flows of liquids or gases. Like all Esko manufactured products, the ELF series features modular design principles with emphasis on simplicity and reduced parts count over the entire range of flows, scales, and various available options, resulting in a superior flow meter at a very competitive price.

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  • Applications

    • Bubble tube level or density measurement
    • Pressurized instrument enclosures
    • Flow measurement
    • Replaces LH, LT, and LR flow meters
  • Features

    • Solid construction for reliable operation
    • North American standard size parts
    • Optional Viton or EPDM seals
    • Optional Handknob
    • Freeze resistant Trogamid or Grilamid flow tube available
    • Excellent corrosion and heat resistance (Trogamid or Grilamid)
    • Constant Flow Regulator available (Model EFR-3)
  • Options

    • Hand adjusting knob
    • Trogamid or Grilamid flowtube
    • Constant flow regulator
    • Viton or EPDM seals
    • BSP connections
SpecificationsOrder GuideData sheet (PDF)Request information

Technical Specifications

Body material

Acrylic, Trogamid or Grilamid

Metallic parts

SS316 and SS304

O-ring seals

Nitrile, (optional Viton / EPDM)

Maximum pressure

440 psi @ 85°F (30°C)

Maximum temperature

167°F / 75°C @ 290 psi (Acrylic body)
158°F / 70°C (Trogamid body)
176°F / 80°C (Grilamid body)


1/4" NPT

Options and accessories

Constant flow regulator


0.75lbs / 0.34kg

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