Trigasdm

Classic turbine flowmeters use propeller type turbines in a closed circular conduit. The turbine is mounted on low friction bearings and its rotation is detected through the chamber wall by one of a variety of detector types. These turbine flowmeters have good linearity in larger diameters but as the pipe bore reduces the efficiency of the flowmeter also reduces. How Turbine Flowmeters Help Measuring the Flow of Low Viscosity Fluids? For measuring the flow of low viscosity fluids within smaller diameter pipe applications – TrigasDM supplied turbine flowmeters employ a design where the flow of fluid is directed at the turbine that is mounted on robust low friction sapphire bearings. The geometry of the turbine and the fluid chamber ensures that the rotational speed of the rotor is proportional to the flow rate through the device. The use of this radial arrangement advantageously allows more energy to be imparted into the turbine so the bearing drag is far less important. Furt...

Fluid entering the meter passes through the inlet flow straightener which reduces its turbulent flow pattern and improves the fluid’s velocity profile. Fluid then passes through the turbine blades causing it to rotate at a speed proportional to the fluid velocity. As each blade passes through the magnetic field, created at the base of the pickoff transducer, AC voltage is generated in the pick-up coil. These impulses produce an output frequency proportional to the volumetric flow through the meter. The output frequency is used to represent flow rate and/or totalization of fluid passing through the turbine flowmeter. Turbine flowmeter is designed to withstand the rigorous demands of the most remote flow measurement applications. The turbine flowmeter maintains measurement accuracy and mechanical integrity in the corrosive and abrasive fluids commonly found in oil filed waterflood project pipelines, in-situ mining operations, offshore facilities and plant locations. Turbine ...