Cod. 00376008 REMOVABLE TURBINE FLOWMETER. The Rapid Check flowmeter series is extremely practical when carrying out maintenance operations, and maintains the precision of the standard turbine flowmeters. It is possible to simply unscrew the body to remove, check, and (if necessary) clean the stainless steel axial-flow turbine. A single removable body contains a turbine (high or low volume, with stainless steel, ceramic, ruby and adjustable sapphire bearings) and a 4-20 mA sinusoidal-wave or square-wave sensor.