STS Multi-jet Dry dial external regulation cold water meter
STW36-C is an STS Standard compliant, automatically valve controlled Multi-jet prepaid water meter. It is an ideal domestic water meter for revenue collection and consumer management. The base meter has been supplied and proven by millions of service connections for reliable and cost-effective consumption measurement.
In addition, our water meters are designed to meet STS, ISO9001 and ISO14001 standards and are used to measure the volume of cold water through pipes.
The traditional piston water meter has many disadvantages, such as:
1. Always Blocked by muddy water
2. Piston Stuck in muddy water
3. High pressure loss >0.1Mpa
4. Accuracy is getting worse after one year running
Compared with traditional water meters, our multi-jet water meters have the following advantages:
1. Running Normally in muddy water
2. Muti jet struction never stuck in water
3. Low pressure loss <0.06Mpa
4. Accuracy always better after 10years
Characteristic:
1. High accuracy, magnetic drive, dry counter ensures long time clear reading;
2. The Impeller is the only moving parts in contact with water made of high quality anti-corrosion materia;
3. Nonreturn valve to avoid the reserve flow rate as option;
4. Pulse output as option.
Features:
1. Ingress IP68 waterproof protection
2. Up to 8 years battery life
3. Automatic valve controlling
4. STS standard
5. Real time o-clock
6. Utilities can set step price into meter on request
7. Anti-Tamper Magnetic field protection
8. RF-LoRa communication(optional)
9. Pay by mobile payment M-PESA, Alipay, MTN, Airtel, etc
Metrological Parameters of different size
| Size | DN15mm 1/2” | DN20mm 3/4” | DN25mm 1” |
| Overload flow rate Q4 | 3.13 | 5 | 7.87 |
| Permanent l flow rate Q3 | 2.5 | 4 | 6.3 |
| Transitional flow rate Q2 | 0.04 | 0.064 | 0.1 |
| Minimum flow rate Q1 | 0.025 | 0.04 | 0.063 |
| Ratio ”R” Q3/Q1 | 100 | 100 | 100 |
| Maximum working pressure | 16Bar | 16Bar | 16Bar |
| Maximum pressure loss | 0.6Bar | 0.6Bar | 0.6Bar |
| Maximum reading | 99999 | 99999 | 99999 |
| Max temperature | 50℃ | 50℃ | 50℃ |
| Error | Q1≦Q≦Q2 | 5% | 5% | 5% |
| Q2≦Q≦Q4 | 2% | 2% | 2% |
Basic Functionality
| Function | Details |
| Prepayment | STS Standard, recharge by input 20digits TOKEN |
| Low credit alarm | Alarm value can be set by inputting corresponding TOKEN |
| Prepaid and post-paid switch | Meter can be switch to prepaid mode or post-paid mode |
| Non-return valve | Non-return valve inside for preventing back-flow |
| Anti-tamper | Meter will automatically close the valve after detection of magnetic field and open cover event |
| Step Tariff | Step Tariff can be set by inputting corresponding TOKEN |
| Overdraft Collection | Non- Revenue water (Overdraft) can be collected day by day or month by month |
| Communication | The meter is available with AMI system through LORA RF or Bluetooth 4.0 on request |
| Information Inquiry | Consumer could check the data like Credit Remain, Total Purchased and Total Credit by input the short code |
| Liquid Crystal Display |  |
Meter Dimension
| Size | DN15 1/2” | DN20 3/4” | DN25 1” |
| Length(L) | 165/190 | 190 | 225/260 |
| Width(W) | 96 | 96 | 101 |
| Height(H) | 106 | 107 | 114 |
| Connecting Thread | G3/4B | G1B | G1-1/4B |
Product Tags:
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STS Multi Jet Dry Dial Water Meter , DN20 External Water Flow Meter Images
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