Showing posts with label flow meter. Show all posts
Showing posts with label flow meter. Show all posts

Tuesday, March 27, 2018

Understanding Flow Sensing Technologies

When selecting a flow sensor, flow meter, or flow switch, one of the first considerations is always the process media: air, gas, steam or liquid. Some flow sensing technologies measure gas, some are better at liquids, some are best for a single media, such as steam, and others are good in multiple media. The industry’s major flow sensing technologies now available include:
Thermal
Thermal flow meters.
Depending on the process media and your application’s requirements, all of these technologies have their advantages/ disadvantages. By considering the process media to be measured, as well as your plant’s equipment and layout, environmental conditions, maintenance schedules, energy cost and ROI, you will be able to narrow the field to one or two best choices.

Coriolis
Coriolis
Coriolis (Mass): Coriolis flowmeters use the oscillating movement of two symmetric metal tubes that are made to vibrate from an internal driver coil.  When liquids or gases flow through the tubes, a phase shift occurs (like you see in the hose) and pickups measure the “twist” and then relate that value to the actual flow. In other words, the amount of twist is proportional to the mass flow rate of fluid passing through the tubes. The greater the twist, the larger the distance between, and the greater the flow.

Differential Pressure: The differential flow meter is the most common device for measuring fluid flow through pipes. Flow rates and pressure differential of fluids, such as gases vapors and liquids. The differential flow meter, whether Venturi tube, flow nozzle, or orifice plate style, is an in line instrument that is installed between two pipe flanges and measures the pressure drop across the flow restrictor and equates it to flow.

Magnetic
Magnetic
Electromagnetic: Magnetic flow meters, also called electromagnetic flow meters or "magmeters",operate on a very simple principal. An electrically conductive liquid moving through a magnetic field will generate a voltage that is related to the velocity of the liquid.

Positive Displacement: Provides a direct indication of actual volumetric flow rate. The fluid motion drives the mechanical assembly. As the fluid motion drives the positive displacement flowmeter assembly, its rotational, oscillating, or other regular movement is counted, often by electronic means using magnetic pickups on moving assembly. There are a number of different positive displacement flowmeter designs including oscillating piston, gear, nutating disk, rotary vane, and diaphragm.
Thermal
Thermal

Thermal (Mass): Measure flow by delivering heat into the flowing media and measuring the loss of heat between temperature measurement points. They are popular because they provide unrestricted flow, contain no moving parts, work well on large or small diameter pipes, provide accuracies over a wide range of flow rates, do not require temp/press compensation, and provide mass flow instead of volume.

Turbine
Turbine
Turbine: These types of flowmeters operate under the simple principle that the rotation of the turbine will be constant as the turbine is acted upon by a fluid passing through the flowmeter. The rotational velocity of the turbine is then interpreted as output, allowing for the operator to consistently monitor the flow rate of the process fluid. They are easy to maintain and reliable.
Ultrasonic
Ultrasonic

Ultrasonic: Measure, via sound waves, the velocity of liquid flowing through a pipe.  Doppler shift technology reflects ultrasonic beams off sonically reflective materials. The transit time method exploits the fact that the transmission speed of an ultrasonic signal depends on the flow velocity of the carrier medium. The use of ultrasonic flow technology is most used in the oil, nuclear, wastewater, pharmaceutical, food and beverage industries.
Variable Area
Variable Area

Variable Area: Measures flow rate by allowing the cross-sectional area the fluid travels through to vary, causing a measurable effect. Flow measurement is performed according to the float principle. Used to measure many different types of liquids and gases passing through closed piping.

Vortex Shedding
Vortex
Vortex Shedding: Refers to the phenomenon wherein flowing gas or liquid forms vortices around a solid obstruction placed in the flow path, which can be measured to calculate volumetric or mass flow. Measure the volumetric flow rate of steam, gas, and low viscosity liquids.

Contact Flow-Tech for any industrial or commercial flow application by calling 410-666-3200 in Maryland, or 804-752-3450 in Virginia. Visit https://flowtechonline.com.

Wednesday, September 6, 2017

Fluid Components Series FS10 Quick Setup Mode Demonstration

FS10 Series Flow Switch and Monitor
FS10 Series Flow Switch and Monitor
The FS10 Series Flow Switch and Monitor is manufactured by Fluid Components, Inc.

The FS10A is a universal flow switch and monitor specifically designed for gas and liquid process analyzer sampling systems. The FS10A is a fast responding, highly repeatable sensor which installs easily into a standard tube tee fitting or new SP76 (NeSSI) modular manifold.

The FS10i is a universal flow switch and flow monitor designed for simple insertion into ½” (13mm) or larger diameter pipes and square ducts. The unit is suitable for either liquid or air/gas applications. It is fast responding and highly repeatable to both increasing and decreasing flow rate changes.

The video below explains the procedure for accessing and setting the quick setup modes.

For more information on any Fluid Components, Inc. (FCI) flow meter in Maryland and Virginia, call 410-666-3200 or visit http://www.flowtechonline.com.

Friday, June 9, 2017

Yokogawa ROTAMASS "Total Insight" Line of Coriolis Flowmeters

ROTAMASS InsightIn the last decade, the use of Coriolis flow meters has been changing from general purpose to supporting your needs in specific applications.

While the technological complexity increased, the demand for simple operation and handling is also a rising requirement.

Yokogawa answers these needs by offering six dedicated product lines with two specialized transmitters allowing the highest flexibility - the ROTAMASS Total Insight.

Total Insight


The ROTAMASS philosophy gives Total Insight throughout the whole lifecycle.

To facilitate optimal processes and increase the efficiency of personnel, Yokogawa has placed a strong focus on simplifying fundamental operating concepts with Total Insight. The Total Insight concept is built in to the latest generation of Rotamass transmitters and provide enhanced settings for customized setups, pre-defined trend views, or multiple configuration sets for fast changeover in batch production are supported.

ROTAMASS NanoROTAMASS NANO - When every drop counts
The world's smallest dual bent tube Coriolis flow meter series for highly accurate measurement at lowest flows.
The dual tube design compensates for fluctuations of density, temperature, pressure and environment conditions. This provides a consistent repeatable and accurate measurement especially for small size Coriolis flow meters.
  • Typical Applications
    • Batching
    • Dosing
    • Blending
    • Chemical injection
    • Dosing systems
    • High pressure gases
    • Liquid and gas low flow measurement
    • Precision coatings
    • Metering pump control
    • Metrology
    • R&D laboratory
    • Vacuum thin film coating
ROTAMASS PrimeROTAMASS Prime - Versatile in applications
The favorably priced and versatile Coriolis flow meter with lowest pressure drop in the market. Ideal for a broad range of standard applications, this series is a flexible and cost effective solution for highly accurate flow and density measurements.
Features such as concentration measurement or the Tube Health Check function allow the meter to be adjusted to customer needs.
  • Typical Applications
    • Batching
    • Blending
    • Chemical recovery
    • Continuous reaction
    • In-line concentration and density measurement
    • Catalyst feed
    • Filling and dosing
    • Mass balance
    • Net oil computing
    • Palm oil
    • Process control
ROTAMASS SupremeROTAMASS Supreme - Experience meets innovation
The most accurate Coriolis flow meter with industry’s best zero stability.
The successful Rotamass series has been progressively developed and is also newly equipped with the latest technology. This meter delivers unsurpassed performance for demanding and critical applications with superior aeration handling and advanced diagnostic functionality.
  • Typical Applications
    • Batching
    • Burner control
    • Feed and product control
    • Filling and dosing
    • Gas void fraction
    • In-line concentration and density
    • Loss control
    • Material and mass balance
    • Net oil computing
    • Process control
    • Solvents
    • Water cut
ROTAMASS IntenseROTAMASS Intense - Safe under high pressure
The Coriolis meter with the most robust and durable design for precise measurement in high pressure applications.
Safety is always a concern and especially when operating at high pressures. Therefore, this series has been designed to meet the highest safety requirements. Combined with advanced diagnosis such as the “Total Health Check” function, operation is always under secure control.
  • Typical Applications
    • Chemical injection
    • Compressed gases
    • Fuels
    • Glycol TEG/MEG
    • High pressure gases
    • Hydraulic oil
    • Hydrocarbons
    • Liquified gases
    • Natural gas hydration
    • Offshore and onshore
    • Oil refinery processes
    • Solvents
ROTAMASS HygienicROTAMASS Hygienic - With pure dedication
Specifically designed and certified for food & beverage, biotechnology and pharmaceutical utility applications.
This series is the appropriate answer to the daily constraints of hygienic processes ensuring continuous product quality and minimizing losses. This is made easy by the provided multi-variable measurement and various dedicated features.
  • Typical Applications
    • Bioreactor feeds
    • Bottling
    • Carbonation of beverages
    • Deionized water
    • Fermentation
    • Juice processing
    • Molasses measurement
    • Online sugar concentration
    • Raw milk tanker unloading
    • Process water reclamation
    • Product quality control
    • Sugar industry
ROTAMASS GigaROTAMASS Giga - Big in performance
Delivering best in class accuracy and most flexible installation at high flow rates.
The unmatched accuracy at the low end of the measuring range offers maximum flexibility from engineering to final operation. This series unifies a long service life with low maintenance costs and reliable performance.
  • Typical Applications
    • Bitumen
    • Distribution networks
    • Drilling mud
    • LNG
    • Rail car loading
    • Ship loading
    • Truck loading
    • Tar
    • Offshore and onshore
    • Oil well cementing and hydrofracturing
Essential and Ultimate Transmitters

Future Ready. The ROTAMASS TI product family has a common and unified transmitter platform with two options that provide the highest flexibility and a tailor-made solution. The Essential transmitter is the cost effective solution for general purpose applications, and the Ultimate transmitter provides various additional features for best-in-class measurement.
Essential TransmitterEssential Transmitter
  • Wizard for easy setup and guidance through the main configuration
  • “Event Management” as unique and useful support to run the process effectively and safely
  • Data mobility provided by microSD card for easy transfer to other devices for fast setup or to pc for in-depth process analysis or remote service
  • Widest range of I/O combinations in the market for most flexible adjustment to the existing system periphery
  • Universal power supply to install the device anywhere in the world
  • HART communication
Ultamate TransmitterUltimate Transmitter
  • Patented “Tube Integrity” function and “TotalHealth Check” for inline meter verification without disturbing running measurements
  • “Features on demand” for easy expansion of special functions via software activation key
  • Batching function combined with multiple configuration sets to support fast changeover
  • “Dynamic Pressure Compensation” for consistently accurate and stable measurement even with significant fluctuations in operating pressures
  • Inline concentration measurement
  • Integrated net oil computing acc. API standard
For more information on ROTAMASS Total Insight in Virginia, visit http://www.flowtechonline.com or call 804-752-3450.

Sunday, May 7, 2017

FCI ST100 and ST110 Thermal Dispersion Flow Meters

FCI flow meters
FCI flow meters
FCI flow meters operate on the principle of thermal dispersion. The flow meter circuitry measures the temperature differential between a heated and a non-heated sensors.  The greater the mass flow rate, the less temperature differential between the two sensors.

FCI flow meters
FCI ST100
The ST100 series transmitter is unsurpassed in meeting your current and future need for outputs, process information and communications. Whether your output needs are traditional 4-20 mA analog, frequency/pulse, alarm relays or advanced digital bus communications such as HART, FOUNDATION Fieldbus, PROFIBUS, or Modbus, ST100 has you covered. ST100's bus communications have been certified by and are registered devices with HART and Foundation Fieldbus. In addition, Emerson Process (Delta V), Yokogawa and ABB (800xA) have tested and verified ST100 Series' FOUNDATION Fieldbus interoperability with their systems. Should you ever need to change or upgrade, ST100 can be converted to any of these outputs with a simple card change in the field.

FCI flow meters
FCI ST110
Many alternative flow meters require periodic removal from service verify calibration which can be expensive if the flow meter needs to be sent back to the factory. The FCI ST110 is capable of calibration verification without being taken out of service.

ST100 flow meters offer the following advantages over other gas flow technologies:
  • Three, 4-20 mA outputs for flow, temperature, and/or optional pressure
  • Very high turn down ratios - up to 1000:1
  • Digital communication options of Foundation Fieldbus, PROFIBUS,  HART or Modbus 
  • The data logging via removable SD card
Ruggedness, accuracy, and superior quality made FCI the leader in thermal dispersion mass flow meters, flow switches and level switches for industrial process measurement applications. FCI air and gas flow meters are applied from small dosing lines to the largest stacks. For more information about FCI in Maryland or Virginia, visit http://www.flowtechonline.com or call 410-666-3200.

Monday, February 27, 2017

A New Twist on Old Magnetic Flow Meter Technology

FPI Mag Meter
FPI Mag Meter
The McCrometer FPI Mag employs a ground breaking configuration. Unlike full-bore mags, the FPI Mag is placed in the middle of the flow stream where an array of coils and electrodes measure at numerous points spanning the diameter of the pipe.

The FPI Mag's accuracy rivals that of conventional mag meters, so there's no compromise on performance. Save up to forty-five percent on installation and total cost of ownership. The FPI Mag is the only flow meter of its kind that eliminates the need for heavy equipment and excessive manpower necessary to support installation. Installing an FPI Mag is easy -  there's no need to shut down or drain the lines. The FPI Mag even fits in compact spaces with limited access points. Prep for conventional mag meter installation requires heavy equipment and draining lines. Conventional mag meter installation is costly complicated and time-consuming.

Benefits of using the McCrometer FPI Mag Meter:
  • Save up to 45% on installation and total cost of ownership
  • No downtime servicing or replacing the FPI Mag Meter
  • Over $5000 savings
  • 6 hours of labor saved

Thursday, November 17, 2016

Applying Turbine Flow Meters For Clean Liquids and Gases

turbine flow meter flange connections Hoffer
Turbine Flow Meter
Courtesy Hoffer Flow Controls 
A turbine flow meter provides a volumetric measurement of liquid or gas flow through the use of a vaned rotor (turbine) inserted in the fluid flow path. Fluid movement causes the turbine to rotate at an angular velocity proportional to the flow rate. A pickup senses the passage of the rotor vanes, producing a sine wave electrical signal output which is detected by the unit electronics. The frequency of the signal relates directly to the flow rate.

Generally, a turbine flow meter is applied to measure unidirectional flow. Some turbine flow meters, through the use of two pickups, have the capability to measure flow in both directions.

There are a number of considerations when selecting a turbine flow meter:

  • Material of construction: Numerous material options are available for the housing and internal parts. Proper selection considers media characteristics and cost.
  • Bearing selection: The combination of bearing type and material will likely be selected by the device manufacturer, based upon a comprehensive application information set.
  • Pickup selection: Several pickup options may be available, with the manufacturer making a recommendation that best suits the application parameters.
turbine flow meter installation schematic
Typical Turbine Flow Meter Installation Schematic
Courtesy Hoffer Flow Controls
Here are a few other things to consider about applying turbine flow meters:
  • Turbine flow meters are precision instruments and will not tolerate debris well. An installation should include a strainer configured to trap debris that may damage the instrument of hinder its operation.
  • For longevity, it is advisable to size the flow meter to avoid extended operation near the upper end of its rotational range. Excessive rotational speeds can accelerate wear on bearings.
  • Lower rotor mass will provide more rapid response to changes in flow, allowing use of the device in applications with flow pulsations.
  • Maintain sufficient downstream pressure to prevent flashing or cavitation. This condition will cause the instrument to produce readings higher than the actual flow rate.
  • Sufficient straight pipe length should be installed at the inlet and outlet of the flow meter to provide flow conditioning necessary for accurate readings. In some cases, a flow staightener may be needed on the upstream side.
  • The output signal from the pickup may need amplification or other signal conditioning. Electrically noisy environments or long cable lengths may require special treatment.
Careful consideration of what is necessary for proper operation will pay off with reliable and accurate performance, low maintenance, and a long service life. Share your flow measurement challenges with product application experts, combining your process knowledge with their product application expertise to develop effective solutions.


Wednesday, November 9, 2016

Box-In-Box Coriolis Flow Meter Design Explained



Yokogawa, manufacturer of the Rotomass Coriolis Flow Meter utilizing the patented "box-in-box" design, has produced a short video explaining how their design counteracts some of the environmental and process piping conditions that can negatively impact measurement of fluid flow. On Coriolis type flow instruments, conditions that apply stress to the sensor tube assembly can change the resonant frequency of the assembly, impacting the measured reading. The Yokogawa design employs a means to minimize or eliminate their effect, maintaining accurate measurement of flow in process piping.

Share your flow measurement challenges and requirements with product application specialists, combining your process knowledge with their application expertise to develop effective solutions.

Thursday, September 22, 2016

FCI (Fluid Components International) Thermal Dispersion Flow Instruments

FCI thermal dispersion flowmeters
FCI thermal dispersion flowmeters
FCI (Fluid Components) offers the widest selection of thermal dispersion technology instrumentation products. When rugged conditions combine with strict process control requirements, FCI’s thermal dispersion RTD sensing elements establish an unmatched record of superior product performance and reliability for the harshest environments.
Products include:

  • Flow Switches
  • Level Switches
  • Mass Flow Meters
  • Flow Conditioners


For more information on FCI in Maryland and Virginia visit http://www.flowtechonline.com or call 410-666-3200.

Friday, July 15, 2016

Installation Recommendations for FCI Single-Point, Thermal Dispersion Flow Meters

Thermal Dispersion Flow Meters
FCI Single-Point,
Thermal Dispersion Flow Meters
All flow meter technologies have recommended installation and engineering practices to ensure they meet their published specifications and for optimal performance, accuracy and repeatability. Flow meter users are frequently challenged with wide variations in their actual  eld conditions and installation constraints that are much different from the ideal conditions under which their  ow meter was calibrated. In fact, the most common installation constraint for most all  flow meter installations is inadequate straight-run.

Flow meter users expect their flow meter suppliers to provide engineering recommendations and solutions to overcome real world application conditions to obtain expected flow meter performance to specifications. This guide provides recommended engineering practices with diagrams and specifications for straight-run, installation orientation and depths, as well as use of flow conditioners as an engineering solution for FCI single-point, thermal dispersion flow meters.


Tuesday, February 9, 2016

Understanding the V-Cone Flow Meter

VM V-Cone System
VM V-Cone System by McCrometer
The VM V-Cone System, manufactured by McCrometer, acts as its own flow conditioner, fully conditioning and mixing the flow prior to measurement.

The key benefit to the VM V-Cone flow meter’s unique design is its ability to provide reliable system accuracy of +0.5% of rate over a 10:1 flow range under the most difficult flow conditions. Readings are precise and reliable, even under changing flow conditions and start/stop flows.

Once installed, the primary element rarely, if ever, needs to be removed from service. This leaves only the flow transmitter with the occasional recalibration over its lifetime. The V-Cone family of flow meters have a proven long life with installations exceeding 20 years without the need to be removed or re-calibrated.

The VM V-Cone flow meter’s enhanced performance is due to the shape and positioning of the measuring element. The VM V-Cone flow meter’s unique design centers the differential pressure cone centrally in the flow tube. This placement reshapes the flow profile, giving the V-Cone the smallest footprint of any in-line flow meter. This conditioned flow creates a low amplitude, high frequency signal that is accurate to ±0.5% of rate.

This video visually demonstrates the advantages of the V-Cone flow meter.


For more information, contact:
Flow-Tech
10940 Beaver Dam Rd.
Hunt Valley, MD 21030
Ph: 410-666-3200

Friday, December 4, 2015

Interesting Facts About Differential Pressure Cone Flow Meters

industrial differential pressure flow measurement device
Differential Pressure Cone Flow Meter
Courtesy McCrometer, Inc.
Requirements for measurement of flow exist throughout the industrial process control field. The applications are varied and vast. As a result, there are a number of technologies available for flow measurement and an even larger array of manufacturers providing devices and instrumentation that can be used to measure fluid flow.

Selecting the measurement technology that will provide appropriate performance for a process measurement application is an initial challenge for every process design. In order to accomplish this task, it follows that a well rounded understanding of the potentially positive or negative attributes for each methodology is necessary.

Differential pressure is one method of indirectly measuring fluid flow. It measures the change in pressure created as media flows past an obstruction in the fluid path, which, when combined with other information and calculation can be used to derive a measurement of mass flow. Like all measurement methods, there are applications where this one excels over others and some where it may not be as advantageous as alternate methods.

One manufacturer of differential pressure flow measurement devices is McCrometer. The company has been manufacturing DP flow measurement devices for over thirty years and has over 75,000 installations worldwide. In the company's own words, their flagship V-Cone product...
is an advanced differential pressure instrument, which is ideal for use with liquid, steam or gas media in rugged conditions where accuracy, low maintenance and cost are important.
Cutaway view of industrial cone flow meter
Cone Meter - Cutaway view
Courtesy McCrometer, Inc.
I have included below an interesting piece that provides, in brief form, some facts that will add to your knowledge of cone meters. Read the piece below. Contact a product specialist for any additional information you may need, or to discuss how this technology can make a positive impact on your industrial process measurement operations.