Water Meter
Hot and cold water · TX-15 / 20 / 25
The TX series mechanical water meter combines the measuring element and the register in one compact body. The brass lower body is built to last, and the eight-digit register makes consumption readable at a glance. Every size comes in a hot water and a cold water version, without a module or with an M-Bus or RF module.
18 configurations
Models
Three sizes, hot and cold water versions, three module options: eighteen configurations. Hot and cold water versions share the same product code.
Selected model
TX-15
DN15 · Hot water · M-Bus
- Size
- DN15G 3/4" connection, Q3 2.5 m³/h.
- Use
- Hot waterFor domestic hot water installations.
- Module
- M-BusCentral reading over a wired M-Bus line.
Ask us about Modbus, LoRa and pulse output modules.
Features
A long-lasting body, a clear register and modules that fit the building's reading network.
- Compact design: measuring element and register in one unit.
- Brass lower body for strength and long life.
- Suitable for cold water and domestic hot water.
- 8-digit roller register for clear reading.
- MID certified, R80 measuring range.
- IP65 protection, accuracy class 2.
- Without a module, or with an M-Bus or RF (OMS, wM-Bus 868 MHz) module; Modbus, LoRa and pulse modules on request.
- Low pressure loss.
- Magnetic protection; manufactured to TS EN 14154.
- Meets OIML R49-1, R49-2 and R49-3.
- 12 months of historical data; no data produced on reverse flow.
- 2-year warranty and long-term spare parts support.
- Environment: climatic −10 °C / +55 °C, mechanical M1, electromagnetic E2.
Technical data
Values may vary by model and configuration.
| Parameter | Unit | TX-15 | TX-20 | TX-25 |
|---|---|---|---|---|
| Nominal size (DN) | mm | 15 | 20 | 25 |
| Q3 / Q1 | – | 80 | ||
| Minimum flow (Q1) | l/h | 31.20 | 31.20 | 78.7 |
| Transitional flow (Q2) | l/h | 50 | 50 | 126 |
| Permanent flow (Q3) | m³/h | 2.5 | 2.5 | 6.3 |
| Overload flow (Q4) | m³/h | 3.125 | 3.125 | 7.8 |
| Q2 / Q1 | – | 1.6 | ||
| Connection thread | – | G 3/4" | G 1" | G 1 1/4" |
| Installation | – | Horizontal | ||
| Max. working temperature (T) | °C | 50 (cold water) · 90 (hot water version) | ||
| Max. working pressure | bar | 16 | ||
| Pressure loss | bar | 0.63 | ||
| Max. permissible error, upper zone | % | Q2 ≤ Q ≤ Q4: ±2 (Θ ≤ 30 °C), ±3 (Θ > 30 °C) | ||
| Max. permissible error, lower zone | % | Q1 ≤ Q < Q2: ±5 (class 2), ±3 (class 1) | ||
| Verification scale interval | m³ | 0.00005 | ||
| Body | – | Brass | ||
| Mechanical / electromagnetic class | – | M1 / E2 | ||
| Maximum register | m³ | 99 999 | ||
Installation and maintenance
Ignoring these rules can affect measuring accuracy and the reliability of remote reading.
- Flush the pipework before installation.
- Install in the direction of flow, horizontally only.
- Clean strainers and sediment traps regularly after installation.
- Keep meter niches away from high-voltage lines and leave enough room for service access.
German engineeringDesign and measurement architecture follow European standards.
Made in TürkiyeManufactured in our own facilities, with fast delivery and service.
Energy savingsWhen everyone pays for what they use, the whole building uses less.
Reliable performanceEvery device is tested before shipping, with spare parts for many years.
Let's choose the right devices for your building
Site surveys are free. Just tell us the number of flats and the type of installation.