The CSF-series
The CSF-counters are made for systems where the pipe is completely full of water. These counters are typically used in applications like siphon and pumps with continous steady flow. They are very compact, and standard DN-flange connection makes them easy to install.
When installed they are easy to operate, and have a very high capacity. Note that these counters set a certain degree of demand on the installation and the capacity of the pump/siphon.
The CSF-series includes the Registration Units CSF1600, CSF2000, CSF3150, CSF3500 and CSF4000.