Armor-Flo

Flow Measurement:

Air|Gases|Oil|Opaque liquids|Steam|Transparent liquids|Vacuum|Water

Product Datasheet

Measure liquid, gas or steam flow rates in horizontal or vertical pipelines. Armor-FloTM meters handle fluids that cannot be measured with the See-Flo® due to clarity, pressure or compatibility with wetted materials. The wedge shape of the meter body housing provides the Armor-FloTM with the same self-cleaning characteristics as the See-Flo®. Teflon® encapsulated cobalt magnets are used to couple the flow isolated indicator with the vane. These features emphasize simplicity and reduce maintenance.

  • Instantaneous rate measurement.
  • Measure opaque fluids.
  • More exotic materials of construction.
  • Use in horizontal or vertical piping systems.
  • Individually calibrated for fluid and operating conditions.
  • User selectable 10:1 turndown flow ranges. (See “Meter Rangeability Sizing Tables”)
  • User selectable units of measure-including dual units of measure.
  • No floats to get stuck, tubes to break or dynamic seals to leak.
  • Low pressure loss.
  • Simple design with few parts for long service life.

flex-flo-principal-operationsArmor-FloTM meters are variable area flow rate meters (“rotameter”). The Armor-FloTM body housing has a variable internal volume which enlarges from the inlet to the outlet.

The primary sensor is a tempered alloy vane with one end affixed to the apex of the meter housing. As the flow rate changes, the vane is flexed in direct proportion. A Teflon® encapsulated magnet links the vane with the pointer in a large indicator housing for easy viewing. The 1/2“, 3/4” and 1″ connections typically have female threaded ends. Sizes 1 1/4” through 12″ utilize an integral bypass housing permitting larger connection sizes in the format of a spool with a consistent 12″ end to end dimension.

armor-flo-principal-operation2In addition, it permits a wide variety of connection types which include threaded, flanged, grooved ends and tri-clamp.

Accuracy: ±2% full scale

Repeatability: ±1% full scale

Scales: Direct reading

Resolution: Maximum-30 division/Minimum-15 divisions

Rangeability: 10 to 1 turndown

Materials of Construction:

  • Housing: Aluminum,brass, 70/30 copper/nickel, 316 stainless steel
  • Shunt: As housing or carbon steel
  • Window: Tempered glass or polycarbonate
  • Vane: Cobalt/chromium/nickel alloy with Teflon ® encapsulated magnet
  • “O” rings: buna-n, ethylene propylene, Viton® or perfluoroelastomer

Piping Connections:

  • 1/2” to 1″ NPT Female
  • 1 1/4” to 4″ NPT male
  • 1 1/2” to 3″ Tri-clamp
  • 1 1/4” to 6″ Grooved
  • 1 1/4” to 6″ Beveled
  • 1/2” to 8″ 150# /300# RF/FF ANSI Flanges (carbon stl)
  • 1/2” to 8″ 150# RF ANSI Flanges (stainless stl)
  • 1/2” to 6″ 150# RF ANSI Flanges (aluminum)
  • 1/2” to 6″ 150# FF ANSI Flanges (brass)
  • 15 to 25 mm DIN 2999/BS21/ISO R7 Female threaded
  • 15 to 150 mm DIN PN 10 Flanges (316 stainless stl & carbon stl)

armor-flo-spec-image

Pressure Limits:

  • 1 Housing (aluminum)
    • 0, 1 or 5 Shunt-200 psig (13.8 bar)
  • 2 Housing (brass)
    • 0 Shunt-400 psig (27.6 bar)
    • 2 or 5 Shunt-200 psig (13.8 bar)
  • 6 Housing (316 stainless stl)
    • 0 Shunt-400 psig (27.6 bar)
    • 5 or 6 Shunt-200 psig (13.8 bar)
    • 7 or 8 Shunt-400 psig (27.6 bar)
  • 8 Housing (high pressure 316 stainless stl)
    • 0 Shunt-1000 psig (69 bar)

Temperature Limits:

  • -23 to 121°C (-10 to 250°F) with buna-n o-ring
  • -23 to 204°C (-10 to 400°F) with Viton®, or ethylene propylene or perfluoroelastomer o-ring

ERDCO reserves the right to alter design and/or specifications without notice. Viton® is a registered trademark of E.I. duPont de Nemours and Co.