1.Product introduction
Usage: Record the amount of cold water flowing through the water pipe.
2.Main features
The counting part of this water meter adopts special liquid sealing to ensure the surface of the mechanism is anti-freezing. This module has compact structure. The advantage of this module is including high measuring accuracy, small start-up flow rate, antifouling, easy reading, high reliability, nice appearance and etc. It is particularly suitable for water supply network in China. The technical indicators are in line with national GB/T 778.1~3-2007 level of measurement standards (equivalent to the international standard ISO 4064-1~3: 2005.IDT level) requirements.
3.Service conditions
a)Temperature rating:T30(The cold water)T90(The hot water)
b)Pressure rating:Map10
c)Pressure loss rating:△P63
d)Upstream flow field sensitivity rating:U10
e)Downstream flow field sensitivity rating:D5
f)Non-measurable negative test
4.Indication error
a)Low area(Q1≤Q≤Q2)The maximum allowable error is ±5%
b)High area(Q2≤Q≤Q4)The maximum allowable error is ±2%
5.The main technical parameters
Nominal diameter
DN (mm)
Overload flow
Q4 (m3/h)
Common flow
Q3 (m3/h)
Boundary flow
Q2 (m3/h)
Minimum flow rate
Q1 (m3/h)
Range ratio
R（Q3/Q1）
Minimum reading
(m3)
6.Overall size and weight
Note:size and weight are for reference only.
7.Flow error curve
8.Pressure loss curve
