Turbine flow meter use a freespinning turbine wheel to measure fluid velocity, much like a miniature windmill installed in the flow stream turbine flow meter. Turbine meters are an ideal solution when high accuracy, compact size, fast response, and high tolerance to shock and vibration are critical requirements. On the other hand, it can be controlled and monitored by a measuring transducer. The angular velocity of the rotor results in the generation of an electrical signal ac sine wave type in the pickup. High pressure oval gear flow meters high performance.
Pdf design and fabrication of a turbine flow meter researchgate. Turbine meters began to be applied extensively in the petroleum industry in the mid1960s. Depending on application area, type of medium and temperature of liquids, different flowmeters or flow monitors can be used. These meters are used in multiple industries to reliably measure the velocity of a variety of liquids, gases and vapors. Click here to download the pdf file for full details. Idaho department of water resources list of approved. A ferritic, stainless steel rotor revolves within a non magnetic housing on the outside of which is located a pick off coil. May 07, 2018 there are many types of flow meters for various applications. Flow measurement, flow control and flow sensors from kobold. When choosing flow meters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc. View and download onicon f series installation and operation manual online. Above is a pressure drop table for processautomatics turbine flow meter range.
Propeller type current meters similar to the purely mechanical ekman current meter, but now with electronic data acquisition can be traversed over the area of the penstock and velocities averaged to calculate total flow. The third type of mass flow technology is the multi var iable dp flow meter which measures temperature and pressure a s well as flow. Flowquips range of high accuracy turbine flow meters include hygienic meters for use in food and pharmaceutical industries, stainless steel flow meters with good corrosionresistance for use with. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing.
Turbine flow meter is a volumetric measuring turbine type. Comparison of turbine with positive displacement meters for. Due to the laws of physics, for optimum results any flow meter including turbine flow meters should be operated as high up in their turndown range as possible. Some turbine flow meters offer low cost water meter solutions with accuracy typically around 3% full scale, while others offer high accuracy of 1% or better. Meter size and flow range selection detailed below are the considerations that should be taken into account when sizing a flow meter. Turbine flow meter floclean sanitary turbine flow meter product data sheet description the floclean sanitary turbine flow meter was developed for use in the food, beverage and pharmaceutical industries. Turbine flow meter floclean sanitary turbine flow meter product data sheet description the floclean sanitary turbine flow meter was developed for use in the food, beverage and pharmaceutical.
Exdiibt6 3point correction and nonlinearity compensation on kfactor. Coriolis flow meter principles the basic operation of coriolis flow meters is based on the principles of motion mechanics. He needs to monitor water flow rate and quantity for his solar heating projects. As fluid moves through a vibrating tube it is forced to accelerate as it moves toward the point of peakamplitude vibration. Comparison of turbine with positive displacement meters. They are used in industrial,waterworks,water distribution,water monitoring and agricultural applications. Increasing viscosities will limit the maximum attainable flow rate. Flow meter should be recalibrated when pickoff is changed. Almost all of the turbine type flow sensors i looked at have two calibration factors specified. Turbine meters measure flow using the mechanical energy of the fluid or gas to rotate a turbine rotor within the flow stream inside the meter. Industrial type turbine flowmeter nixon flowmeters. These compact, rugged, highpressure oval gear flowmeters are designed to give high performance with a low cost of ownership and suitable for use as high performance fluid flow meters.
Standard and hot tap refer to the installation kit types only. Since the publication of api standard 2534 measurement of liquid. As fluid flows through the turbine meter, it impinges upon turbine blades that. Having shorter pipe lengths, other system components and elbows to close to the flow meter may adversely affect the accuracy and repeatability of the flow meter.
Practical aspects of turbine flow meters calibration and. Due to the laws of physics, for optimum results any flow. The maximum allowable usb cable length, before a powered hub or extender. Pdf turbine flowmeter and viscosity effects of liquid. Because of their versatility, these turbine flowmeters are the solution for a wide variety of liquid and gas flow sensing applications. There are many types of flow meters for various applications. The able range of turbine flow meters offer high accuracy and reliability. High pressure oval gear flow meters high performance fluid. These compact, rugged, highpressure oval gear flowmeters are designed to give high performance with a low cost of. Fixed restriction variable head type flow meters using different sensors like orifice plate, venturi tube, flow nozzle, pitot tube, dall tube, quantity meters like positive displacement meters, mass flow meters etc. Turbine flowmeter users manual hoffer flow control. You dont really need to know the formulas and science behind the scenes but hopefully, in this video, we will give you some idea of. One type of conventional flow meter utilizes an axial flow turbine that is disposed.
We have a variety of standard and specialty turbine flowmeters. You dont really need to know the formulas and science behind the scenes but hopefully, in this video, we will give you some. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc. Shown is a dual rotor meter with its casing removed and a single rotor meter with casing and a magnetic pickoff to record the rotors frequency. Onicon makes no warranty of any kind with regard to this material.
A flow meter or flow sensor is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. Over 40 years, thousands of units have been sold to all classes of industry, and the meters have an excellent reputation for durability. The noryltm housing and flow tube offer a lightweight, easytoinstall mag meter that is resistant to heat 210f 99c and compatible with many waterbased liquid solutions. Like any measurement instrument, a turbine flowmeter displays secondary sensitivity to physical parameters other than the one which is of primary interest. The nonmetallic bearing retainers minimize friction, thereby allowing these meters to be used with clean fluids that have poor lubricating properties i. The 316l stainless steel construction provides a durable and cost efficient flow measurement system that offers excellent accuracy and. Some turbine flow meters offer low cost water meter solutions with accuracy typically around 3% full scale, while others offer high. On one hand, the flow rate of a liquid or gas can be directly determined by means of a flow sensor. A flow meter is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. The tables below list flow meters meters that have been independently tested and subsequently approved by the idaho department of water resources idwr for use in closed conduit measurement applications.
Daniel series 1200 and 1500 liquid turbine flow meter systems combine turbine. Most computers feature one or more usb type a jacks. The tables below list flow meters meters that have been independently tested. Ftb100 turbine flowmeters with economical ball bearing. Piping should be the same size as the meter bore or port. Onicon flow meter ordering guide for johnson controls 2. The turbine meters also minimize fiscal measurement uncertainty by delivering highfrequency pulse resolution to account for minute increments of the. The rotations are measured and calculated to provide a proportional measurement relative to flow rate. Onicon f series installation and operation manual pdf. Turbine flow meter working principle instrumentationtools. Turbine flow meter line size selector chart with respect to flow range line size a b liquid flow range nb mm mm m3hr 15 175 208 0. Flow meter installation hardware kits all onicon insertion type flow meters can be installed and removed without system shutdown when installed through a 1 or larger full port ball valve. The bno series flowmeters have been designed specifically for high accuracy flow measurement and batch control in the liquid food industries, and conform to the same exacting standards as our nt industrial flowmeters so far as performance is concerned. If your computer has a usb type a jack, utilize an.
In general, the blade angle is held between 20 and 40 to the flow. Turbine flow meters the turbine meter can have an accuracy of 0. Turbine flow meters flow metering technologies flowquip. Turbine flow meters, gas and liquid flow meters, subsea and electronic flow meters.
Having shorter pipe lengths, other system components and elbows to close to. Smith meter turbine meters smith meter guardsman lb, lj, and lsj series turbine meters are rimlesstype rotor meters which utilize an upstream stator to support the rotor. Practical aspects of turbine flow meters calibration and uvc. Jan 20, 20 positive displacement pdm and turbine tms are the two types of flowmeters acceptable as primary measurement instruments for custody transfer of liquid petroleum products. Turbine flowmeters are available for both liquid and gas applications. As fluid moves through a vibrating tube it is forced to accelerate as it moves. A sharper blade angle provides a higher frequency output. The fundamental design goal of a turbine flow meter is to make the turbine element as freespinning as possible, so no torque will be required to sustain the turbines rotation. An analysis of the viscosity effect on meter accuracy of an axial flow turbine type flowmeter is formulated by the use of physical reasoning and experimental evidence. Since the publication of api standard 2534 measurement of liquid hydrocarbons by turbine meter systems in march, 1970, the turbine meter has gained broad acceptance for custody transfer. Turbine meters can consist of a single rotor or dual rotors. Idaho department of water resources list of approved closed.
Propellertype current meters similar to the purely mechanical. High performance fluid flow meters titan high pressure oval gear flowmeters. Tms use a bladed rotor contained in a flow tube that is axially suspended in the direction of flow. No part of this manual may be reproduced in any form without. A turbine flow meter is used for volumetric total flow andor flow rate measurement and has a relatively simple working principle. Viscous drag also contributes to the pressure drop across the turbine meter.
Please use one of the following formats to cite this article in your essay, paper or report. The rotational speed of the rotor is directly proportional to the velocity of the fluid travelling through the. F series measuring instruments pdf manual download. Conversely, decelerating fluid moves away from the point of peak amplitude as it exits the tube. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of hoffer flow. Flowquips range of high accuracy turbine flow meters include hygienic meters for use in food and pharmaceutical industries, stainless steel flow meters with good corrosionresistance for use with hazardous fluids, and gas turbine flow meters. As all sizes are symmetrical to each other, the pressure drop is equal for all sizes in relationship to % of flow. Turbine type flow meter can measure wide range medium with low flow,size from dn4dn200,accuracy can be up to 0. Turbine flowmeters with economical ball bearing design. The rotational speed of the rotor is directly proportional to the velocity of the fluid travelling through the meter. Can be used on smaller flow meters with reduced flow range. The qse mag meter monitors flow rate and total flow in a. Heavy duty,particularly suited for high flow rates, turbobar wph water meters cover a very wide flow range.
Turbine flow meters are designed to maximize throughout and minimize pressure drop, maintain high flow rates over an extended flow range and offer pulse output that is linear to the flow rate. The angle of the turbine blades to the stream governs the angular velocity and the output frequency of the meter. Flow through a large penstock such as used at a hydroelectric power plant can be measured by averaging the flow velocity over the entire area. A certificate of calibration is supplied with every new turbine flow meter offered by flowquip. When choosing flow meters, one should consider such intangible factors as familiarity of. The flowing fluid engages the rotor causing it to rotate at an angular velocity proportional to the fluid flow rate. Technical documentation for onicon insertion flow meters this file contains the following. No limitation steel monelnickel haste alloy accuracy.
If your computer has a usb type a jack, utilize an a male to micro b male cable to connect to the meter. The output frequency is used to represent flow rate andor totalization of fluid passing through the turbine flow meter. Turbine flow meters are designed with wear resistant internal components to provide troublefree operation and a long service life. The frequency at which the blades turn represents a given flow because each blade sweeps out a fixed volume of fluid. The nixon range of turbine flowmeters offers high accuracy and high reliability. The ftb100 series of turbine meters have a sealed ball bearing design for high accuracy performance. View hoffer flow controls attendance schedule for events, forums and exhibitions through 2020 read more. An analysis of the viscosity effect on meter accuracy of an axialflow turbinetype flowmeter is formulated by the use of physical reasoning and experimental evidence. He is mainly interested in this two inch sensor but also sent along a small plastic hose bib type similar to the adafruit 828. Turbine flow meters use the mechanical energy of the liquid to rotate a rotor in the flow stream. A ferritic, stainless steel rotor revolves within a non magnetic housing on the outside of which is located a pick off coil containing a permanent magnet. Reasons to choose a magnetic pickoff use on ft32 and larger meters. They are intended for use at loading racks to provide the highly accurate measurement required for custody transfer of petroleum liquids.
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