Positive Displacement Flowmeters

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ECO OVAL/Inexpensive, explosionproof


An inexpensive positive displacement flowmeter with explosionproof construction while supporting wide range of fluids from water, oil to general chemical liquids.



High accuracy: ±0.5% RD (for oil, chemical liquids), ±1.0% RD (for water)


Battery-powered model is also available (battery replaceable).


Inexpensive, quick delivery


Pattern approved model is also available.

Major specifications
Model For oil (LGL) For general chemical liquids
For water (LGW)
Nominal size 20, 25, 40, 50mm 8, 10, 20, 25, 40, 50mm 20, 25, 40, 50mm
Connection JIS 10K Flange
ASME 150 Flange
8, 10 mm: Screw-mount
20 to 50mm: JIS 10K Flange
JIS 10K Flange
Flow range 7 to 24000L/h (6 types)*1 12 to 20000L/h (6 types)*2 200 to 12000L/h (4 types)
Operating temp.
0 to 120°C 0 to 80°C
Max. operating
1.19MPa 8,10mm:1.96MPa
20 to 50mm:1.19MPa
Accuracy Within ±0.5% of reading Within ±1% of reading
Power supply DC-powered or battery-powered
Output Pulse
Configuration Explosionproof or non-explosionproof, IP66
Body material FC250 SCS14, SCS13 or equivalent SCS13 or equivalent
Applicable fluids Kerosene, light oil, heavy oil, etc. General chemical liquids Water

*1: 2 to 5 mPa·s in viscosity
*2: 0.3 to 0.8 mPa·s in viscosity

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