Details description
Plastic Water Meter
Application:
Measuring the volume of cold potable water passing through the pipeline.
Size:
15mm, 20mm
Type:
Multi-jet, vane wheel
Wet-type, dry-type (magnetic), Liquid sealed counter, half-Liquid sealed counter (optional)
Anti-flow backwards (optional)
Casing:
ABS plastic or Glass-fiber Nylon (optional)
(Glass-fiber Nylon is better than ABS plastic on Anti-corrosion and resist aging)
Features:
1. Completely plastic shell, light weight, anti-freeze, anti-corrosion, not produce dirt inside the body, without metal’s yellow spot and rust, long time using not dirty water, without second water pollution, environmental protection.
2. Casing, cover, connecter, nut adopt engineering plastic, together with the improvement of chemical oxygen inhibitor and light stabilizer, the product with very good capability of anti-aging, and can keep its color and physics stabilization in scurviness outdoor environment of solarization and drench.
3. For the reason that eliminate the cut stress between metal screw thread and plastic connectors screw thread, the connectors adopt high quality water strengthen plastic (PA-6 materials, the materials normal using temperature is -20℃--140℃.
4. High accuracy and measuring stable, measuring accuracy is up to ISO4064 class B.
Working condition:
Working water temperature≤40°C
Working pressure: ≤1.0 Mpa,pressure patient ≥2.0Mpa.
Pressure loss: ≤0.1Mpa
Max. Indicating Error:
♦ At low zone is +/- 5% from minimum flow rate(Qmin) to transitional flow rate(Qt) exclusive boundary.
♦ At high zone is +/- 2% from transitional flow rate(Qt) to overload flow rate(Qmax)
Characteristic:
Starting flow not more than 0.4L/h, can prevent water used in dripping and leak
Flow Range
| Nominal diameter(mm) |
Measuring class |
Overload flux (Qmax) |
Normal flux(Qn) |
Threshold flux(Qt) |
Minimum flux(Qmin) |
StartingFlux(Qs) |
| m3/h |
l/h |
Wet-dial type |
Dry-dial type |
| 15 |
A |
3 |
1.5 |
0.15 |
45 |
≤0.014 |
≤0.016 |
| B |
0.12 |
30 |
≤0.010 |
≤0.012 |
| 20 |
A |
5 |
2.5 |
0.25 |
75 |
≤0.019 |
≤0.020 |
| B |
0.20 |
50 |
≤0.014 |
≤0.016 |
Dimensions and weight
| Nominal diameter(mm) |
LLength(mm) |
BWidth(mm) |
HHeight(mm) |
Screw |
Weight |
Min Reading |
Max Reading |
| D |
kg |
m3 |
m3 |
| 15 |
165 |
98 |
109 |
ZG3/4" |
0.5 |
0.0001 |
99999 |
| 20 |
195 |
98 |
111 |
ZG1" |
0.8 |
0.0001 |
99999 |
Flow Error Curve:
Pressure Loss Curve:
Installation and Application:
1.The size of the meter is determined according to the flow rate in the installation place:
2.The meter should be installed horizontally with the counter window up to the sky, the arrow direction on the meter casing must coincide with the direction of the water flow.
3. The location for installation shall be protected from the affection of strong magnetic fields, or explosion to sunshine, or frozen and submergence in water.
4. The newly-installed pipe shall be flushed so as to maintain neither sand, nor sediment in it before installation of water meter.
5. For accurate measurement, the tap height should be higher than the meter.
6. The meter should not be directly connected with pipe, but with coupling, gasket and nut. When dismantle meters, don't force to twist them for fear of damaging the body.
7. After a long time use, the impurities or rust in the pipe should block the strainer or enter into the internal meter, which cause in accuracy of meter. it'd better to clean the strainer per three years, and newly calibrate the meter. But not dismantle by self.
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