Function:
Usedto measurethe total water volume that flow by tap water pipeline.
Character:
The Startup flow rate of this kind of water meter is five to eight times than common type.
It can effectively prevent the dripping, Prompting users to repair the table as soon as the
Pipe run, leakage phenomenon etc. Improve people's water saving consciousness. Inlet with
one-way valve structure, reverse installation cannot use of water normally. Dimension of this kind
Of water meter is same as the common type, easy to install.
Application scope:
Water temperature not more than 30°C, water pressure not more than1MPa
Maximum permissible errors:
A). Start from the lower area which includeQmin, but not include theQt, the maximum permissible errors ±5%.
B). Start from the high area which includeqttiltoqs, the maximum permissible errors is ±2%.
Description | Unit | Hydraulic data and dimensions |
Nominal size | mm | 15 | 20 | 25 | 32 | 40 | 50 |
inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 |
Overload flow-rate (qs) | m3/h | 3 | 5 | 7 | 12 | 20 | 30 |
Permanent flow-rate (qp) | m3/h | 1.5 | 2.5 | 3.5 | 6 | 10 | 15 |
Transitional flow-rate (qt) | l/h | 120 | 200 | 280 | 480 | 800 | 3000 |
Minimum flow-rate (qmin) | l/h | 30 | 50 | 70 | 120 | 200 | 450 |
Min. reading | l | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
Max. reading | m3 | 99999 | 99999 | 99999 | 99999 | 999999 | 999999 |
Nominal pressure | MPa | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
ΔP at the qs | MPa | 0.08 | 0.09 | 0.08 | 0.09 | 0.085 | 0.085 |
L | mm | 165 | 190 | 260 | 260 | 300 | 300 |
I | mm | 245 | 292 | 380 | 384 | 438 | 438 |
H | mm | 105 | 105 | 105 | 105 | 170 | 170 |
B | mm | 91 | 91 | 91 | 91 | 130 | 130 |
G | inch | G3/4B | G1B | G11/4B | G11/2B | G2B | G21/2B |
R | inch | R1/2 | R3/4 | R1 | R11/4 | R11/2 | R2 |
Weight | Without connections | kg | 1.01 | 1.12 | 1.62 | 1.95 | 3.77 | 4.72 |
With connections | 1.18 | 1.39 | 2.05 | 2.67 | 4.47 | 6.12 |
