This type of test bench follows the international technical requirements for measuring water meter. At the moment it is the unique manner for unifying measuring value between water meters, water meter calibrating devices in the world and it is necessary equipment for water meter manufacturer, running-water company and water meter testing station.

Size (mm)	Flow meter (L)	Material	Precision (Grade)	Flow range (m3/h)	Tested water meter (mm)
15-25	10,20,50,100	Stainless steel	0.2	0.004-7	15,20,25
40-50	100,500	Stainless steel	0.2	0.03-30	40,50

Remarks:
1. The length of straight tubes in front, mid and back of tow water meters is 15 times diameter.
2. It can be used as authoritative calibration.
3. Glass flow rate meter is equipped.