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Sontay has introduced a series of water- and heat-metering products to help building-service specifiers and contractors to achieve precise and affordable flow and energy metering.  

The range includes flow sensors, ultrasonic flow sensors, water meters, compact heat meters and heat-meter integrators that conform to the requirements of the Measuring Instrument Directive (MID) and EN 1434, where applicable.

Designed to measure volumetric flow in hot-water heating systems, the Single-Jet Flow Sensors, Multi-Jet Flow Sensors and Flanged Flow Sensors can be used with chemically treated water in continuous-flow conditions and, depending on the model selected, can be installed horizontally or vertically to suit different measuring requirements.

The flow sensors for heating can be used with chemically treated water and are designed for continuously or high-duty cycle-flow conditions.

Sontay’s water meters are designed to be used with sanitary water only and a non-continuous flow — for example, domestic hot and cold-water supplies.

Key specifications

  • Heat-meter integrators feature the latest technology to calculate heat usage from heating and cooling systems
  • Dynamic measuring cycle enables smallest energy consumption to be collected
  • Permanently shows total heat consumption
  • Large, multifunction display can also reveal all data collected
  • A compact version of the heat meter is also available for smaller applications
  • Heat-meter integrators and compact heat meters are compatible with Sontay’s M-Bus network, which allows up to 250 metering devices to be cost-effectively connected to an M-Bus Master device so that metering data can be quickly and easily accessed via a PC
  • Flow sensors operate at up to 120˚C with a safety margin of 130˚C
  • Within each water-meter category, Sontay provides a range of flow parts in different sizes to suit screw or flanged connections and temperature ranges from 0°C to 30°C (cold) and 0°C to 120°C (hot)
  • Ultrasonic Flow Sensors have no moving parts and are virtually silent in operation
  • Flow measured using transit-time principle
  • Flow rate concluded by the delay time measured and information transmitted to the calculator by the way of electronic pulses
  • Calculator then works out heat usage from heating systems for easy access and display

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