RM Rotary Meter

This all-aluminum cast meter has stood the test of time, providing users with reliable and accurate measurement for custody transfer. The RM meter provides multiple configuration options: Flange (ANSI and DIN), Nipple (NPT), and Hub (30Lt to 100Lt).

Principles of Operation

Romet measurement devices utilize positive displacement rotary technology. Rotary technology relies on the rotation of two figure eight shaped impellers to perform the measurement operation. These impellers have shafts held in low friction bearings and positioned 90 degrees in relation to each other by precision timing gears. The impellers contra rotate in semi cylindrical housings enclosed by head plates at either end. Very close tolerances and timing gears insure that an effective capillary seal is achieved, at the same time insuring that the impellers and housing do not come in contact. As gas enters the inlet of the meter, a pressure differential is created from the inlet and outlet of the meter, causing the impellers to rotate. The volume displaced by each revolution of the impellers is transmitted to a final module readout to begin collecting and organizing the generated data.