Zedflo stocks a range of highly dependable and advanced clamp on ultrasonic flow meters from the most trusted manufacturers in the industry. For clean liquid flow we have from Tokyo Keiki and Dynaflox ultrasonic flow meter, hand held portable and fixed in service transit time flow meters. These devices use the “time of flight” principle to measure flow using time shift of an acoustic signal between two transducers clamped to the wall of the flow-bearing pipe. These portable ultrasonic flow meters make ideal tools for commissioning and checking and the fixed units are an economical option for fitting flow meters on larger size pipes with no cutting of the pipe wall for installation. Dynaflox also has the Portable clamp on Doppler and fixed installation ultrasonic flow meters, suitable for measuring flow of solids-bearing or aerated liquids, where no permanent meter is installed. From Siemens, we distribute the Sitrans range of clamp on ultrasonic flow meters, for measuring gas and slurry. The range includes the FUT1010 custody transfer meter designed for the oil and gas industries. The range also includes the FUG1010 gas flow meter, and the FUS1010 liquid and slurry meter, which provides extremely accurate transit-time measurement of highly aerated liquids which would normally require the use of a Doppler flow meter. Siemens also make the FUE1010 designed especially for the HVAC sector.