Company Overview - Brochure

Verabar®Velocity AveragingFlow SensorsTrue Performance in Flow Measurement2North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Verabar® ...Advanced DP Flow MeasurementThe Most Accurate and Reliable Technology for Measuring Gas, Liquid and SteamDeveloped from aerospace technology, the Verabar averaging pitot flow sensor provides unsurpassed accuracy and reliability. With its solid one-piece construction and bullet shape, the Verabar makes flow measurement clog-free and precise.Accuracy You Can Trust And the Data to Back It UpThe unique and exclusive break-through in improved accuracy derived from the development of a verified theoretical model predicts the Verabar flow coefficients.This eliminates the need for calibration tests to characterize the flow coefficients.Superior Signal Stability and Greater Resistance to CloggingClogging can occur in low pressure ports located in or near the partial vacuum at the rear of the sensor. The Verabar design locates the low pressure ports on the sides of the sensor, forward of the fluid separation point and turbulent wake area. This virtually eliminates clogging and produces an extremely stable signal.Lower Drag and Extended TurndownGolf balls fly farther because they have a dimpled surface that lowers aerodynamic drag.The grooves and roughness on the Verabar’s frontal surface apply the same principle. This simple design feature relieves the partial vacuum at the rear of the sensor, reducing the pressure drag. This extends the accuracy and rangeability to very low velocities.The unique sensor shape reduces drag and flow induced vibration.Rough SurfaceTest Data SummarySmooth Surface– 1/2/ Percent3%2%1%0%-1%-2%-3%0% 5% 10% 15% 20% 25% Percent BlockagePercent Deviation from the Published KAir TestsWater Tests0.5 PercentError Bandindependent of Reynolds number and within ±0.5% of the predicted value. The derivation of the theoretical model and test data is published in the Verabar Flow Test Report (VED-100).Without such a model, the uncertainty of the flow coefficients is dramatically increased and expensive calibration may be required. Empirical test data from independent laboratories verified the theoretical model and flow coefficients as a constant, And the location of the low pressure ports eliminates the potential for clogging and improves signal stability.3North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Verabar® ...New Ideas That WorkUnique Valve HeadVerabar offers a new concept… built-in valves in the head of the instrument. This superior design:• Simplifies installation and maintenance. • Lowers the connecting hardware cost by reducing the number of fittings.Partial Insert• Designed specifically for high velocity cooling water applications, large diameter pipes, large vertical stacks and buried water lines. • Extends 1/3 into pipe to reduce procurement and installation costs — specifically useful when a hot tap is required. • Partial Insert hot tap sensors can be inserted/retracted with no reduction in flow rate.Spring-Lock… Offers a Superior Mounting MethodThis advanced, patented design ensures the sensor remains sealed, locked and pre-loaded to the opposite wall regardless of changes in pipe diameter due to pressure, temperature or mechanical force. This design has important advantages:• Fugitive emission and leak prevention…The Spring-Lock continually compensates for the differential in packing and body growth rates due to increased temperature.Spring-LockVisual load indicatorSpring travelCompensates for changes in pipe diameter• Increases sensor strength, thereby eliminating the need for an opposite wall support. A locked, pre-loaded sensor is four times stronger than a non-preloaded, cantilevered sensor.• Other mounting methods do not pre-load the sensor or the packing seal and are subject to increased sensor vibration, metal fatigue, breakage and leakage.TransmountA Transmount flow system is the first choice for all liquids; and for gas and steam applications, with slight variations in pressure and temperature.Mass TransmountA Mass Transmount flow system should be selected on steam and gas applications with variable temperature and pressure.Field Flow SystemsReady to install, the Verabar can be ordered with a manifold, transmitter or local indicating meter.Complete Installation in Less than an Hour4North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Regular Models — (Threaded Components)Model Number Type of MountingTube FittingV100 (Single Support) V110 (Double Support)Spring-LockV150 (No opposite support required)Hot Tap Models — (Threaded Components)Model Number Type of MountingScrew DriveV200 Low PressureHand Insertion V250Hot Tap Models — (Flanged Components)Model Number Type of MountingScrew DriveV400 Low PressureHand Insertion V450Flanged Models — (Flanged Components)Model Number Type of MountingFlangedV500 (Single Support) V510 (Double Support) Flanged Spring-LockV550 (No opposite support required)Verabar® ...The Versatile Flow SensorThe Verabar offers the widest application range of any flow sensor. It accurately measures gas, liquid and steam.V100Verabar Model Selector Verabar ApplicationsV110 V150V500 V510 V550V400 V450Extended Range ApplicationsThe Verabar’s versatile design lends itself to a wide range of applications. Contact Veris application engineering for your special requirements.High Pressure Design2500# ANSI Class 6000PSI and 1000ºFSquare and Rectangular DuctsSpecialized Mounting• PVC • Concrete • FRP • Cast Iron Pipe Fast and Easy Model SelectionThe easy-to-operate Veracalc computer program features: • Flow Calculations: DP from flow rate, or flow rate from DP. • Model Selection: Complete model selection from drop down menus. • Structural Analysis: Verifies sensor strength at flowing conditions. • Temperature and Pressure Limits: Error warnings if limits are exceeded.The Veracalc PC program is available from your local representative, the factory or it can be downloaded from our website at armstronginternational.com/veris.V250V200Gas Liquid SteamNatural GasCompressed AirCombustion AirHydrocarbon GasHot AirBlast Furnace GasCooling/Chilled waterBoiler Feed WaterDe-Mineralized WaterHydrocarbon LiquidsCryogenicThermal Transfer FluidsSaturatedSuperheatedMain HeaderCustody TransferDistributionEnergy StudiesLarge Stacks and DuctsUp to 21 feet (6 meters)5North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Verabar® ...Compared to Orifice PlatesVerabar Lowers Installed CostsVerabar can save you more than 60% in installation costs over an orifice plate in a 10” pipe.The graph shows the total installed cost by pipe size of the orifice plate, the Verabar, and the resultant Verabar savings. The most significant portion of the savings is the reduction in the linear inches of weld.Savings in Weld Time Installed Cost SavingsVerabar Has the Lowest Operating CostsVerabar pays for itself in less than a year.The graph shows the yearly operating cost savings and equivalent horsepower savings of the non-constricting, low permanent pressure loss Verabar compared to the extremely constricting, high permanent pressure loss orifice plate. Savings are shown for gases, liquids and steam—at typical design velocities, by pipe size.Verabar vs. Orifice Operating Cost SavingsThrough Accuracy of Measurement, Low Installed and Operating Costs, Verabar Proves its Performance, Efficiency and Value.Verabar Maintains Its AccuracyOrifice plates show long term deterioration of accuracy.The initial accuracy of the orifice plate is ±1%. However, long term accuracy deteriorates unless the plate is periodically inspected. Senior, dual chamber fittings are available to check the plate without requiring system shutdown, but such fittings are very expensive.Condition % DeviationWear of knife edge: 0.010” ..............................-2.2 0.020” ..............................-4.5 0.050” ............................ -13.1Dirt and grease deposits in pipe .............. -11.1Valve lubrication upstream: one side of plate ............. -15.8 both sides ......................-24.0Leaks around plate ......................-8.2Plate warpage .............................-9.6Orifice Plate Test ResultsFlorida Gas Transmission Company conducted a test to quantify various conditions which can result in inaccurate measurement. A partial list of the results is shown:Pipe Size (Inches)10 20 30 40 48$ 1,000$ 500$ 10,000$ 5,000$ 100,000$ 50,000Dollar SavingsVerabar Installed CostOrificeInstalled CostVerabar InstalledCost SavingsNatural GasSteamAirHorsepower Savings@ $0.05/KWH300200100501051Pipe Size (Inches)10 20 30 40 48$ 1,000$ 500$ 10,000$ 5,000$ 100,000$ 50,000Dollar SavingsLiquids63 inches of linear weldingOnly 4 inches of linear welding$$$$$ $ $$ $ $$ $ $$ $ $Valve lubr. (-24%)Warpage (-9,6%)Wear (-13.1%)Dirt & grease (-11.1%)Leaks (-8.2%)6North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Verabar® ...ISO 9001 CertifiedQuality AssuranceVeris manufactures its own leak-proof, solid one-piece sensor. Our primary goal is to provide the highest quality and most accurate sensor in the industry.Other manufacturers use a three-piece sensor design that has no positive mechanical method of maintaining a seal between the tubes. Therefore, temperature, pressure, vibration and even manufacturing variations can cause leakage between the chambers.This can result in a significant undetectable loss in accuracy.Verabar is designed to meet or exceed applicable ANSI and ASME codes. The Verabar is available to meet B31.1, B31.3, B31.8, NACE MR-01-75, etc.Additional QA capabilities include code welding, hydrostatic and other non-destructive testing. VerabarSensorRoundSensorT-ShapedSensorWhy Average the Velocity Profile?Verabar averages the velocity profile through multi-sensing ports which span the entire pipe diameter. Other types of non-averaging insert meters are SINGLE POINT INSERT METERS (turbine, vortex, magnetic, sonic, etc.). They assume a “textbook: turbulent velocity profile, and use a single “critical” point to infer an average velocity. In actual industrial applications, sensors are located downstream of disturbances, such as elbows or valves, which produce non-uniform velocity profiles. This makes it virtually impossible to locate a single point that represents the average velocity.Result: Inaccuracy ranging from ±10% to ±20%.Actual ProfilesVerabarLowReynoldsNumberTextbookProfileControlValveElbowOtherLocation of average velocityThe Proof of Verabar AccuracyAccurate Flow CoefficientsThe true test of a flow measurement device is its ability to repeat its published flow coefficient within its accuracy band. Verabar has been thoroughly tested at independent flow laboratories (all sensor sizes, in multiple pipe sizes, in gas and liquids). Actual Flow Test7North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/verisDesigns, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com/veris for up-to-date information.Verabar® ...Problems With Other Sensor ShapesRound SensorsRound sensors produce unpredictable accuracy. The original round sensors were designed for economical fluid balancing and did not meet industrial demands for accuracy. Round sensors have a variable fluid separation point that causes an unstable low pressure distribution around the sensor.Result:Inaccuracy in excess of ±5% and as high as ±10%.FlowFlow FlowFlowVariable separation pointFixed separation pointDiamond and T-Shaped SensorsThese sensors produce pulsating, noisy signals. They improved accuracy by use of a sharp edge to fix the fluid’s separation point. However, this greatly amplified the vortex shedding forces.Result:The sharp edges generate extreme vortices, causing sensor vibration, pulsations and a noisy signal to the point that transmitter dampening and signal averaging are recommended.Aerodynamic-Shaped SensorsExtreme aerodynamic shapes that permit the stream lines to reattach are subject to airfoil type lift forces. This occurs when the angle of attack varies due to sensor misalignment, or the direction of the fluid varies, as is common in industrial piping with upstream disturbances.Result:The lift forces can cause an unpredictable shift in the low pressure distribution, producing inaccurate measurement.Lift forcesVerabar® ...True Performance in Flow MeasurementFlowFlowArmstrong InternationalNorth America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rimarmstronginternational.com/veris470Printed in U.S.A. - 8/14© 2014 Armstrong International, Inc.Armstrong provides intelligent system solutions that improve utility performance, lower energy consumption, and reduce environmental emissions while providing an “enjoyable experience.”