Errakal has one rig, to calibrate all types of flow meters with air. See specifications below.
Description | D ≤ DN 150 | DN 150 < D ≤ DN 300 |
Flow | 2,5 ÷ 7000 Nm3/h | 2,5 ÷ 7000 Nm3/h |
Medium | air | air |
Gas temperature | ca 20 ºC | ca 20 ºC |
Ambient temperature | 20 ± 3 ºC | 20 ± 3 ºC |
Pressure | Atm. ÷ 6,5 bar (a) | Atm. ÷ ≤ 6,5 bar (a) *1 |
Available length | 18 m | 18 m |
Working standards | DN 50 CVM | 1 x DN 150 turbine meter |
Set of five turbine meters | 2 x DN 80 turbine meter | 2 x DN 100 turbine meter |
Accuracy | ≤ ± 0.25 % | ≤ ± 0.25 % |
Piping material | Stainless steel | Stainless steel |
)1 Meters > DN 150 are not calibrated up to Q max at 6,5 bar (a). Q max can be reached at lower pressure levels, depending on Q max of the meter under test. |
For the Reynolds area of the rig see graph.