The SU Puresonic detects flow rates of up to 1000 l/min with high precision. Thanks to ultrasound technology, this also applies to ultra-pure water with low conductivity as produced in reverse osmosis plants. The signal strength, which can be used as a quality and maintenance indicator, is also continuously detected.

The measuring pipe of the SU Puresonic is made of stainless steel and is free of measuring elements, seals and moving parts. This means that faults due to damage, leaks or blockages are excluded from the outset, as are design-related pressure drops.

Precise flow measurement in water treatment

For more than 30 years, EnviroFALK GmbH has been designing, manufacturing and selling pure and ultra-pure water systems for a wide range of industries worldwide. Reverse osmosis is an essential process step in water treatment. In reverse osmosis, the supplied soft water is filtered into pure water. A relevant parameter for the customer is the quantity of pure water available at the end of the treatment process. Based on the flow rate, the plant operator can see, among other things, whether one of the membrane filters used requires maintenance.

To measure the flow, the customer uses the SU Puresonic ultrasonic sensor, which can detect flow rates of up to 1,000 l/min with high precision. Thanks to the ultrasound technology used, this also applies to pure and ultra-pure water with low conductivity as it is produced in the plants at EnviroFALK. In combination with the conductivity sensors of the LDL family, reliable control of the quality and quantity can be established in the filtration process.

Regulation of water quantities in parts cleaning

A customer of ifm, a manufacturer of automated laundry technology, builds systems for the entire laundry process. These include washing machines used on cruise ships.
The technically treated seawater used to supply fresh water to the machines places special demands on the flow sensors used. The reason for this is the low conductivity of the water, which pushes classical measuring principles, such as the magnetic-inductive measuring principle, to their limits.

The SU Puresonic, on the other hand, can be used without any problems at low conductivities, as is the case with ultra-pure water, due to its ultrasonic technology, and can reliably monitor the fresh water supply. Besides, the magnetic-inductive sensors of the SM series are used in industrial water, in which there is an increased formation of bubbles and foam due to the cleaning agent.