Water heat meter APATOR POWOGAZ Sharky 473 DN25, 3.5 m³/h maximum flow

APATOR POWOGAZ Sharky 473 DN25 is a water heat meter designed to measure thermal energy transferred by hot or cold water in heating systems. The meter supports a nominal pipe size DN25 and a maximum flow rate of 3.5 m³/h, making it suitable for residential and small commercial installations where accurate heat metering is required for billing and energy management. The compact design and standard hydraulic connection dimensions enable straightforward integration into existing supply lines.

Advantages

The meter provides reliable energy measurement through volumetric flow sensing combined with temperature difference calculation, enabling accurate accounting of consumed thermal energy. Its DN25 configuration and 3.5 m³/h capacity balance flow range and pressure drop for typical household and small business systems. The device construction is intended for long-term operation with stable metering performance and straightforward mechanical installation.

Suitable for

• Residential heating systems with DN25 piping
• Small commercial buildings and offices requiring heat consumption accounting
• Energy management and sub-metering in multi-tenant properties
• Retrofit projects replacing older heat meters with compatible DN25 devices

Key specifications

• Nominal pipe size: DN25
• Maximum flow rate: 3.5 m³/h
• Measurement type: water heat (thermal energy via flow and temperature differential)
• Application: hot and cold water in closed heating circuits
• Typical installation: inline mounting in supply or return lines

How to use

Install the meter in the heating circuit according to hydraulic connection standards for DN25 piping, ensuring correct flow direction marking and solid mechanical fastening. Connect temperature sensors or integrated sensors according to the manufacturer's wiring diagram if the unit requires separate temperature probes. Commission the meter by purging air from the line, verifying tightness of connections, and checking initial readings at low and nominal flows. Regular readout or integration with a remote reading system lets you collect consumption data for billing or energy analysis.

Usage recommendations

Place the meter in an accessible, frost-free location and provide strain relief on piping to avoid mechanical stress. Follow local regulations for metrological verification and periodic inspection to maintain measurement accuracy. Use compatible fittings for DN25 pipework to ensure leak-free installation.