Flow Calibration Services

We provide calibration services for liquid flow meters using seven calibration facilities as national standards. The calibration facilities for water flow cover the range between 2 L/h and 12 000 m3/h with uncertainties between 0.039 % and 0.081 %. The calibration facilities for oil flow cover the range between 0.02 L/h and 300 m3/h with uncertainties between 0.020 % and 0.078 %.

Water Flow Meters

Facility Main Equipment Flow rate Uncertainty
(ｋ= 2)		 Remarks
Hi-Reff
(High Reynolds number
actual flow facility)		 Reference flowmeters, Ball prover

750 m3/h
~
12 000 m3/h

 0.081 %  ~ 70 °C 
Medium, Large 500 kg,
5 t, 50 t,
weighing tank
and head tank		  0.3 m3/h
~
3 000 m3/h		 0.042 %
~
0.060 %
Small 10 kg
weighing tank		  0.002 m3/h
~
1.2 m3/h		 0.039 % 

Oil Flow Meters

Facility Main Equipment Flow Rate Uncertainty
(ｋ= 2)		 Remarks
Large 10 t, 1 t
weighing tank

 3 m3/h
~
300 m3/h 

0.020 %
(for mass flow)

0.030 %

(for volumetric flow)		 Working Liquid：
Kerosene, Light Oil
Medium 32 kg
weighing tank		  0.1 m3/h
~
15 m3/h

0.020 %

(for mass flow)

0.030 %

(for volumetric flow)		 Working Liquid：
Kerosene, Light Oil,
Spindle Oil,
Industrial gasoline
Small 2 kg, 100 g
weighing tank		  20 mL/h
~
0.1 m3/h

 0.020 ~ 0.050 % 

(for mass flow)

0.064 ~ 0.078 %

(for volumetric flow)		 Working Liquid：
Kerosene,
Light Oil,
Industrial gasoline

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