Take Control of Your Fuel Efficiency with Coltraco’s Permaflow®

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Stay compliant and in control of fuel consumption onboard. As of January 1, 2023, new regulations require accurate monitoring and documentation of both vessel speed and fuel usage.

Permaflow® is the solution you need:

  • Non-invasive, 24/7 fuel flow and consumption monitor 
  • Easy to install without downtime or drilling into pipes 
  • Simple clamp-on design for immediate compliance 

Key features of Permaflow®:

  • Ultrasonic flow and heat meter
  • Accurate volumetric, mass, and energy flow rates 
  • Temperature monitoring 
  • Seamless integration with existing systems via USB, MODBUS, 4 – 20 mA communication modules for real-time data transmission

With Permaflow®, you can easily ensure compliance with the new regulations.

Reasons to choose Permaflow®

  • 24/7 visibility: Constantly monitor and log data with a low-cost solution. 
  • Over 90,000 measurements: Ability to monitor a wide range of parameters including volumetric flow rate, mass flow rate, energy (heat quantity) flow rate, and units displayed in kWh and BTU.
  • Versatility: Variety of communication and I/O options such as PT100 thermometer integration, RS232, USB, 4-20mA and more, seamlessly integrate with your existing systems. 
  • Low cost: No installation costs, no drilling into pipes, no downtime to the pipe network and easy to use and set up by one person.

Permaflow® reduce installation costs, increase safety helping you deliver our vision of the Safesite™ on land and the Safeship™ at sea, and allow user to consistently perform a wide variety of maintenance and inspection procedures, for the benefit of customers and personnel.

Get in touch

You can reach us anytime via phone or email, we aim to respond to all enquiries within 24 hours (excluding weekends and bank holidays)


Come say hello at our Technical Laboratory.

Coltraco Ultrasonics
NETPark Research Institute
Joseph Swan Road
TS21 3FB

United Kingdom


Monday - Friday (excluding bank holidays) from 8:30am to 6:00pm, UK.

Tel (Sales & HQ): +44 20 7629 8475
Tel (Technical): +44 1740 618 240