Clamp-on technology for ultrasonic flowmeters

Safe and non-invasive flowmeter installation without process interruption and cutting of pipes


The installation of inline flowmeters almost always requires process interruption and  time-consuming mounting procedures. This involves the cutting of pipes, which can cause product spillage during installation and increases the risk of leakages during operation, threatening the safety of employees and the environment.


For reliable and economical flow measurement without the risk of dangerous product leakage, KROHNE offers the OPTISONIC 6300 series of various clamp-on ultrasonic flowmeters. Their patented mounting rail with click-and-turn mechanism enbales a fast, accurate and reliable installation virtually anywhere. The process does not have to be stopped, opened or bypassed, allowing for a safe flowmeter installation.

Safer flow measurement with ultrasonic flowmeters​

Reduced application and sizing risks​, diagnostics, safe mechanical design of piping​

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Safety benefits

  • High degree of occupational safety with clamp-on flowmeters for mounting on pipes up to DN 4000 / 160"

  • No welding or cutting of pipes, no exposure to harmful substances during installation and operation

  • No potential leakages or other safety risks associated with inline flowmeters (e.g. wrong selection of wetted materials, pressure changes, etc.)

  • Installation without process interruption while  maintaining process safety

  • Accurate and reliable measurement due to factory calibration, patented mounting rail and continuous self-diagnostics of the entire measurement setup

  • Available as portable or stationary clamp-on device for use at any location, incl. hazardous areas

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OPTISONIC 6300 Clamp-on flowmeter

Ultrasonic Clamp-On Flowmeters

The course "Ultrasonic Clamp-On Flowmeters" covers all areas of the measurement principle as well as measuring accuracy and general characteristics.

View free eLearning course

2 products


Ultrasonic clamp-on flowmeter for flow measurement of liquids


Ultrasonic clamp-on flowmeter for temporary flow measurement of liquids