Precision Without Compromise: Coltraco’s Permaflow® Redefines Real-Time Flow Measurement

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When it comes to enhancing accuracy and efficiency in various industrial processes and applications, the ability to monitor and measure fluid flow rates in real time is crucial. Accurate flow measurement devices not only ensure efficient operations but also contribute to cost savings and regulatory compliance. In this blog post, we’ll delve into the world of real-time flow measurement solutions, focusing on the innovative non-invasive ultrasonic transit time technology, with a spotlight on the remarkable Coltraco Ultrasonics’ Permaflow®

Types of Real-Time Flow Measuring Systems  

There are several methods for real-time flow measurement, each catering to different industrial needs. These methods include differential pressure, electromagnetic, vortex shedding, and ultrasonic flow meters. While each has its advantages, ultrasonic flowmeters have gained significant attention due to their non-invasive nature and accurate measurements. 

In pic: An inline flow meter attached to the pipes

In pic: a complex pipeline system in the oil and gas industry

Non-Invasive Ultrasonic Testing of Real-Time Flow Measurement Solutions  

Non-invasive ultrasonic transit time technology has emerged as a game-changer in the field of flow measurement. Unlike traditional invasive methods that require pipes to be cut or drilling, non-invasive solutions like the Coltraco Permaflow® offer a clamp-on ultrasonic flow design, eliminating installation costs and downtime to the pipe network. 

  • Cost-Efficiency: With no need for pipe modifications, installation costs are significantly reduced, making non-invasive solutions financially viable for various industries. 
  • Continuous Monitoring: Non-invasive systems provide 24/7 flow rate monitoring, ensuring that any deviations from the norm are promptly detected and addressed. 
  • Pressure Loss Elimination: Since the flowmeter doesn’t make contact with the fluid, pressure loss across the pipe network is avoided, maintaining optimal system performance. 
  • Enhanced Durability: The absence of contact with the fluid eliminates the risk of flowmeter damage, leading to a longer lifespan and reduced maintenance costs compared to inline flowmeters. 
  • Flexible Installation: Devices like the Permaflow® can be easily wall-mounted, allowing for clear visibility of measurements in various room conditions. 
Ultrasonic Flow Meter Banner
Coltraco Product Permaflow®: Real-Time Flow Measurement   

The Permaflow® is a remarkable fixed, clamp-on ultrasonic flow and heat meter designed by Coltraco.  

Key features and advantages of Permaflow® include: 

  • Accurate Measurements: The Permaflow® is accurate to +/- 0.5% of the measured value under ideal conditions, ensuring reliable and precise flow rate readings. 
  • Wide Application Range: It can measure various flow types, including volumetric flow rate, mass flow rate, and heat or energy flow rate, making it suitable for a diverse range of applications. 
  • Integrated Thermometer Inputs: The system accommodates PT100 thermometer inputs, allowing simultaneous monitoring of liquid temperature alongside flow rates. 
  • Data Logging and Communication: With built-in USB and RS232 connectivity, the Permaflow® can log over 90,000 measurements in its 16 MB internal memory. Data can be easily transferred to a PC for further analysis. 
  • ISO 17025 Calibration: For verification of accuracy, the option to include an ISO 17025 calibration certificate is available, attesting to the device’s performance. 


Real-time flow measurement solutions have undergone remarkable advancements, and non-invasive ultrasonic transit time technology stands at the forefront of this progress. Instruments like the Coltraco’s Permaflow® have revolutionized how industries monitor and measure flow rates, offering cost-efficiency, accuracy, and durability. By embracing such cutting-edge solutions, industries can enhance operational efficiency, comply with regulations, and ensure optimal performance in fluid management systems. As technology continues to evolve, the realm of flow measurement holds exciting possibilities for further innovation and optimization. 

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