Technical Information
Typical Specification:
Domestic water meter for multi-jet inferential design with DZR brass body plus moulded and hardened glass lens approved to Class C by Department of Trade Metrology (SABS 1529 - 1/1994). Meter tested and certified in a laboratory approved to SABS 0259. Must be of the wet dial type and have a mechanical drive.
Flow Rate Specifications
| Meter Size (mm) |
*15 |
*20 |
*25 |
*32 |
*40 |
50 |
| Max Flow Rate qs ±2% (m³/h) |
3 |
5 |
7 |
12 |
20 |
30 |
| Permanent Flow Rate qp ±2% (m³/h) |
2.1 |
3.5 |
4.9 |
8.4 |
14 |
21 |
| Transitional Flow Rate qt ±2% (l/h) |
22.5 |
37.5 |
52.5 |
90 |
150 |
3 000 |
| Minimum Flow Rate qmin ±5% (l/h) SABS |
15 |
25 |
35 |
60 |
100 |
450 |
| Minimum Flow Rate qmin ±5% (l/h) actual |
12 |
20 |
20 |
20 |
60 |
150 |
| Starting Flow (l/h) |
6 |
6 |
10 |
10 |
25 |
35 |
| Maximum Working Pressure (kPa) |
1 600 |
1 600 |
1 600 |
1 600 |
1 600 |
1 600 |
| Counter Resets to Zero (m³) |
10 000 |
10 000 |
10 000 |
10 000 |
10 000 |
10 000 |
*
Columns for 15mm, 20mm, 25mm, 32mm and 40mm meters reflect
Class C accuracy. Operating temperature: cold water up to 50°C
Typical Accuracy Curve
Pressure Drop Graph
Outstanding Features of the M100 Optima
- Increased accuracy
- Unbreakable glass lens
- Enlarged measuring range
- Dezincification resistant body
- Lower head loss
- High continuous flow capacity
- Replaceable measuring cartridge
|
- Compact design, built-in type strainer, exchangeable without opening of meter or breaking the seal
- No magnetic coupling. Prevents tampering
- Visual flow meter
- Calibration facility
|
