Turbine Flow Meters are generally available from 1.5 inches to 12 inches or larger pipe sizes. Small turbine flowmeters can be installed directly in the pipe, but the size and weight of larger turbine flowmeters may require the installation of a strong foundation. This flow meter is better if applied to sanitary, relatively clean, and corrosive fluids in sizes up to about 24 inches. In addition, turbine flow meters designed for a specific purpose, eg for natural gas service, can often operate over a limited temperature range (eg up to 60 C) where operation at higher temperatures can damage the flowmeter. Likewise for non-lubricating fluids, because the flowmeter may malfunction or its accuracy deviates too far because there are turbine flowmeters equipped with grease for use in fluids that do not have lubrication properties. It should be noted in determining the turbine flow meter should be careful on dirty liquids (containing garbage, sand and other solids).īecause the dirt that passes through it will be able to hamper accuracy and will even fail because the rotor can’t rotate due to getting stuck in dirt.
Turbine Flow Meters can be used to measure the flow velocity of liquids, gases and vapors in pipelines, such as hydrocarbons, chemicals, water, cryogenic liquids, air, and industrial gases. The pulses generated by the pick-up sensor are pulses per unit volume, also referred to as the k-factor. The pick-up sensor generates pulses as fast as the impeller rotates, this provides a very fast reaction time which makes this type of flow meter very suitable for batching applications. Transmitters and motion systems are available to capture flow in both forward and reverse current directions. Pick-up sensor on turbine flow meter will process pulse signal to determine fluid flow. When the liquid moves faster in the turbine flow meter, it will generate more pulses which will be proportional to the velocity of the fluid flow. Blade motion is detected magnetically, with each blade or metal embedded piece generating a pulse. The shaft rotation of the Turbine Flow Meter can be sensed mechanically or by detecting blade motion.
Important Factors In Turbine Flow Meter Operation.