Bamo E Series Variable Area Glass Flow Indicators are variable area flow indicators, the diver (”float”) moves inside a calibrated conical tube. These flow indicators may be calibrated according the fluid properties and operating conditions. They accept flow switches, inductive mono-stable contacts, adjustable over the entire measuring range.

Bamo E Series Features:

  • Direct reading
  • Accuracy ± 2 %
  • For liquids or for gases
  • Materials according ranges
  • Adjustable contacts


The E series flow indicators are used for flow-rate reading or on gases or on liquids:

  • Water treatment plants
  • Manufactures (pulp industry, textile industry, etc.)
  • Chemical, pharmaceutical industries
  • Heating or cooling plants
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Bamo E Series Specification:

Accuracy ± 2 % F. S. (Full Scale)
Repeatability ≤ 0.25 % of reading
Scale length 250 mm
Unit On request of customer
Temperature limits 0… 90 °C with Buna seals
0… 120 ° C with FPM seals
Fittings Or BSP-F
Materials Or flanges (DIN, ANSI, etc.)
Or carbon steel, or AISI 316, or PVDF
Thread fittings
On request: Hastelloy, Titanium
Flanges Or AISI 316, or painted carbon steel
Measuring tube Borosilicate glass
Spherical diver According to specifications (see further on)
Conical diver Standard: AISI 316 L; Or Aluminum (application
for air)
Options: PVDF, PTFE, Hastelloy B or C, Monel or
Stops AISI 316 L, or PVDF
On request: Hastelloy, monel
Seals Standard: NBR; Or FPM
Body Epoxy painted carbon steel
Or AISI 304 L
Monostable inductive contacts
Intrinsically safe version (CENELEC, EEX ib II C)
Repeatability ± 0.3 % F.S.
Ambient temperature -25 … +60 °C
Protection IP 67
Cable length 1 m


Transparent protection screen
Guiding rod (when specified) Or AISI 316,

Download Data Sheet: Variable Area Glass Flow Indicators E Series