Building Services – Legislative and economic driving forces as well as advances in technology are changing the way in which large buildings and facilities are operated, managed and maintained. You are focussed on efficiency, limiting energy consumption and reducing carbon emissions.

Clamp-on ultrasonic flowmeters can help you to achieve water and energy savings through monitoring flowrates and thermal energy consumption in (existing) systems. With a high level of accuracy, but without interrupting flow processes.


  • Easy adaptation of existing measuring systems
  • Performing spot measurements
  • Applied externally; No more process interruptions
  • Simple and fast installation
  • Budget friendly
  • On-site support

The sensors of our clamp-on ultrasonic flowmeters are clamped to the exterior of pipe and tanks. It is therefore not necessary to shut down the system or to interrupt your flow process. These measuring instruments are ideal for utility companies such as hospitals and airports.

The main hot and chilled water pipes in large facilities are usually very large and in inaccessible locations. With a clamp-on flowmeter, there is no need for expensive modifications and installation costs are minimal, as no special equipment, additional accessories or engineering are required. Actually, your only costs are the purchase costs.

With our ultrasonic devices, both flow and temperature can be measured. This means that several of our flowmeters integrate heat measuring and data logging in one system.

Under Floor Heating

You can benefit greatly from the efficient adjustment of Under Floor Heating (UFH) systems. Our clamp-on ultrasonic flowmeters, such as the KATflow 200, can be used for measuring flexible pipes and tubes with diameters from 10 mm on.

Boiler plants

Regardless of the boiler age and type, the thermal energy produced is never entirely used for the intended purpose of heating a flowing medium. There are always heat losses from boiler casings and pipe work which lead to a reduction in the efficiency of a system.

The heat quantity measurement function available for the KATflow 230 portable clamp-on flow meter, can deliver valuable information about the efficiency of a system. Both the flow rates and temperatures are measured by clamp-on sensors. This makes the metering process completely non-invasive and therefore very convenient as budget-friendly.

The efficiency of a boiler plant can be affected by its control system as much as by the choice of boilers. In a retrofit situation, if the existing controls are rather old, they may not interface easily with a new plant. This problem can be solved by introducing additional sensors providing the information required by modern controllers. The stationary clamp-on flowmeter, type KATflow 150, is the ideal solution to perform this very task. As it offers various process outputs and serial interfaces, it can easily be embedded into automated control systems.


HVAC installations (Heating, Ventilation and Air Conditioning) are used in non-residential buildings to control the indoor climate. These systems are designed in order to save as much energy as possible. You can accomplish this in particular by regularly checking and adjusting the building’s heating and ventilation systems.

Clamp-on ultrasonic flowmeters can make the difference here. These instruments provide you with information about volume flows, flow rates, temperatures and energy consumption. We have both stationary and portable devices in our range.

Fire Sprinkler systems

Sprinkler systems have become a standard requirement for many newly built commercial and residential properties. To ensure they are in working order at all times, they have to be inspected regularly.

In addition to that, a main drain test should be conducted at least once a year. This test measures the flow of water to check on any possible interruption within the system. The KATflow 200 is a proven useful tool for this measurement. Compact and lightweight, and therefore easy to deploy in hard-to-reach locations.

Because the tube or pipe remains intact when mounting a clamp-on flowmeter, there is no risk of leakage and there is no direct contact with potentially hazardous contents.

  • Pump, valve and inline flowmeter performance verification
  • Measurements on water supply and disposal lines
  • Boiler plant and air conditioning controlling
  • Balancing of heating and cooling systems
  • Inspection of air conditioning units
  • Testing of fire sprinkler systems
  • Water consumption monitoring
Controle dieselverbruik schepen -KATflow 150 - vaste enkel en dubbelkanaals ultrasone flowmeter | U-F-M b.v.

Advanced fixed installation clamp-on ultrasonic flowmeter


Hand-held clamp-on ultrasonic flowmeter

KATflow 230 - ultrasone flowmeter in waterdichte koffer | U-F-M b.v.

Portable clamp-on ultrasonic flowmeter