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Flow and calibration velocity range:
It calibration by standard Range shown in the table below when Range is not
specified.
It calibration when there is specification by flowing quantity Range in which the customer is
specified. Is this specification Range flowing quantity of Table 9.1. Please confirm becoming
in the upper bound value from the flow velocity chart.
Table 9.1 Standard Flow Range
Standard flow range
Meter size
Inch (mm)
Flow rate
(gal/min)
Flow rate
(m³/h)
Flow velocity
(m/s)
1/2 (15) 25 2 3.144
1 (25) 75 6 3.395
1 1/2 (40) 175 15 3.316
2 (50) 300 25 3.537
3 (80) 650 60 3.316
4 (100) 1,000 100 3.537
6 (150) 2,500 200 3.144
8 (200) 4,500 300 2.653
Note: The unit of "gal/min" is not exchanged (converted) by “m
3
/h”