Gas Flow Meter

The flow meter uses the absolute pressure of the gas in the calculation of the mass flow rate. The RCM Industries Flo-Gage measures flow based on a pressure differential created across a built-in calibrated nozzle. Flow sensors / flow meters. This results in an accurate measure of flow rate, generally measured in liters per minute. The general equation for mass flow rate measurement used by ISO5167 standard is: 1 2 4 1 2 1 4 ρ π ε β ⋅⋅⋅ ⋅ ⋅∆⋅ − = d p C QM You will find it on section 5. Remember the ideal gas law: pV=nRT. Fax +46(0)40-38 83 33. 5RD accuracy on a 100:1 wide turndown ratio. Designed for both MIG and TIG welding jobs, this gas regulator/flowmeter is cast brass with a sturdy steel body gauge to withstand the most abusive jobsite environments. Flow meters are used to measure the volumetric or mass flow rate of a liquid or gas. meter should have been used. NIST/ Weights & Measures. Depending on the application variables and media specifications, different flowmeters or flow monitors can be used. The measured pressure drop across the meter over that range is shown in Figure 4. Bronkhorst offers the widest product range of thermal mass gas flow meters and gas controllers on the market. Steam Flow Rate through an Orifice. New product: magnetic flowmeter designed for oil and gas. Unlike other calculators, you are NOT confined to inputting diameter in inches, velocity in miles per hour, etc. Our mass flow meters ensure fast, accurate and economical measurements of gas flow over a wide dynamic range. If the dimensions of the duct are known, then the cross-sectional area can be easily determined and the volumetric flow calculated. Swagelok® variable area flowmeters measure the flow rate of liquids and gases by means of a tapered tube and float. And when the EtherMeter is connected to compatible AMI/AMR-type (encoder) flow meters, its transmitted consumption data is. Tiered Pricing Solution Zenner provides you with a comprehensive tiered pricing solution which is commonly applied in gas charging rate. Although industrial gas flow meters are widely utilised for liquid and water applications, it has long been accepted that clamp on gas flowmeter technology could not be applied to mass gas flow measurement primarily due to fundamental theoretical measurement limits. Here you will find various flow meters. McMillan is a world leader in providing flow measurement and control products including Liquid & Gas Flow Sensors, Switches, Meters, and Controllers. Volumetric flow meters are well suited for hydrocarbon, chemical, water, cryogenic liquids, air, and industrial gas applications. 50020 Shield Gas Flow Tester. The OleumTech® OTC Wireless Flow Totalizer Transmitter is designed to work with virtually any third-party turbine flow meters for accumulating volume of liquid with high accuracy of ±0. The Electromagnetic flow meter is an indigenously developed product & has been launched in 2001. A volumetric flow measurement can be success-fully attained without any knowledge of gas composition. Typical recommendations suggest 35 straight pipe diameters upstream and 5 straight pipe diameters. In the gas flow discipline, flowrates are often expressed as "flow at standard conditions". True and timely flow data for your analysis, reduces your risk and enables you to make critical wastewater flow decisions with absolute confidence. Ultrasonic Gas Flow Meters Raychem RPG is the authorized distributor of multipath Ultrasonic Gas Flow Meters or High Pressure Gas Flow Meter manufactured by FMC Technologies, a Fortune 500 company and leading player in Ultrasonic Gas Flow Meters. The first thing to do to adjust the flow rate of your shielding gas is open your shielding gas tank valve the whole way. For example, if you measure the gas flow from a digestion system, concentration changes in methane, carbon dioxide, and oxygen will not affect accuracy. The LCD display with back light makes reading flows clear and easy. With our decades of experience and several thousand units in the field, these are the main 3 items that we find most helpful to customers when looking for a gas flow meter. Whether there is any uncontrollable factors that. Its non-intrusive measurement technology ens… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The flow computer receives volumetric flow measurement data from DP or ultrasonic gas meters, along with temperature and pressure, and calculates the flow rate. Orifice meter size is determined largely by the range of differential pressures that are deemed acceptable to measure. They have diverse applications, and come in a variety of types for each different purpose. Darhor is a well known flow meter manufacturer with a great deal of experierence. 47 Welding Direct Price $13. Therefore, your meter is oversized, as average flow is near the minimum detectable. The meter measures flow rate in actual liters per minute to an accuracy of +/- 1% over the range of 0. Choose from a variety of variable area flow meters (rotameters) and electrical flow meters including gas mass, differential pressure, turbine, paddle-wheel sensors, gear. was incorporated in 1963. security, floor plan, energy, oil and gas, and manufacturing. Manufacturer of Gas Meters - Gas Flow Meter, Rotary Positive Displacement Gas Meter, Propane Gas Flow Meter and Digital Gas Flow Meter offered by Kelvin Gas Technologies Private Limited, Navi Mumbai, Maharashtra. Exact gas quantity measurement is of the utmost importance here, as even very small measurement errors could result in substantial economic loss. Find a flow meter that is right for your application. Test and measurement professionals use them in a wide variety of applications where accurate flow measurements are critical, including (but not limited to) HVAC, energy and utilities, water management, aerospace, agriculture and the pharmaceutical industry. Mass Gas Flow Meters. We offer complete flow measurement packages for the offshore drilling, production and well-servicing environments. We are Manufacturer, Supplier, Exporter of Steam Flow Meters, Gas Flow Meters. Conforms to requirements under ASTM D 892, ASTM D 1071…. 3/4" Pulse Output Gas Meter - PGM-075. A simple, low cost, flow checker designed to test actual gas flow at the torch for every welder in your shop resulting in big gas savings. Sanitary Flow Meters. All models come with a field wiring junction box for easy installation. Which biotech options package is right for you? NEW: GT1600 rotameter from the pioneer in gas flow technology. The TSI Mass Flowmeter 4140 (0. In general, downstream straight run requirements for turbine flow meters are around 5-10x the piping diameter. The FMG series of rotary gas meters are designed to meet the highest demands of reliable and accurate measurement of gas flow. Every day, gas flows in great quantities through pipelines, often changing owners. All flow calibrated components are measured on instruments that are calibrated with Lenox Laser traceable standards. Bronkhorst offers the widest product range of thermal mass gas flow meters and gas controllers on the market. An actual rising-ball flow meter, not just a pressure gauge/regulator with orfice. P810 Lined Check for gas applications 5. When the total gas flow rate is great, all meter runs are placed into service and their respective flow rates summed to yield a total flow measurement. Darhor is a well known flow meter manufacturer with a great deal of experierence. The VT650 Gas Flow Analyzer offers high accuracy and reliability for gas flow and respiratory medical equipment, including neonatal, mechanical and high-frequency ventilators. 1 Requirement for a specific mixture gas flow meter In GMAW processes weld quality is relative to a correct shielding gas flow rate and a gas type. 5% accuracy. To calculate the energy flow, the flow computer needs information on gas composition (percentage of methane and heavy hydrocarbons, as well as any nitrogen and carbon dioxide) and density. From Radiant Heat Loss in Piping. 0KIT is a commissioning tool which measures and displays the instantaneous flow of natural gas in standard cubic feet per hour (SCFH). With our decades of experience and several thousand units in the field, these are the main 3 items that we find most helpful to customers when looking for a gas flow meter. Gas Flow Meters & Controllers Accurate Mass Flow Measurement Sierra designs and manufactures a wide range of today's most advanced analog and digital gas flow meters, mass flow meters, controllers and switches across three core technologies: Capillary Thermal , Immersible Thermal , and Mass Vortex. The analog or basic gas meters currently dominate the market. Density g/l @ 0°C. Gas flow meter setup for welding - Save gas - Tips for gas leak checking - Duration: 2:50. Bronkhorst offers the widest product range of thermal mass gas flow meters and gas controllers on the market. The Agilent® ADM 2000 is a field-portable flowmeter which measures flow volumetrically, so you don't have to make any adjustments when changing from one gas to another. 50mm, 75mm, 100mm, 127mm, 250mm scales. Using a flow meter, check that the shielding gas flow is set properly. Water, natural gas, steam, mineral oil, chemicals are some of the fluids that have to be measured day in, day out. Identifying the right flow meter for your application is a complicated yet crucial process. This autocad 2d dwg model can be used in your gas layout design CAD drawings. The SSI Gauge Meter uses differential pressure technology to accurately display gas flow for industrial gases in the harshest industrial environments. (AutoCAD 2004. The honing operation creates a smooth and consistent bore surface end-to-end. 9 for most orifices. Standard conditions are synonymous with the term "base conditions" or "normal conditions". Determining air flow is a matter of multiplying the cross sectional area of a duct by the air velocity. Calculate the LPG (Propane) Consumption per Hour by Burner Size - Propane Gas Consumption A gallon of propane contains 91,502 BTU of heat energy whilst the BTU rating for appliances is in BTU per hour, based on burner size. To calibrate a gas flow meter using the Autobell®, the flow meter must be installed upstream of the bell so that all gas flowing through it is captured by the calibrator. They are extremly reliable and long-term stable and are free from zero-point drift. 12 - 20 GPM Water; 0. The CTF878 uses a new technology called correlation tag, to determine the flow rate of gases. Typically low capacity systems that are used for liquid level control, density and pressure controls. Improved Steam Dryness. The compact QLF Series has no moving parts, non-wetted sensors and no obstructions in the flow stream to cause an increase in pressure drop; this results in a very rugged, reliable and. Therefore, your meter is oversized, as average flow is near the minimum detectable. G) at low flow rates (upto 27000 ltrs / hr). The systems are fast, precise and transportable and can be fully automated using COMPASS for Flow software. Three times more accurate than standard totalizers for water, these are rated for ±1. Enter the value to convert from into the input box on the left. Regular calibration of your flow meter instruments ensure that the flow meter's measurements are as accurate as their specifications say they are. A simple 'float in a tube'. We have established in 2005 Service and Maintenance facility FLOWTECK dedicated to The service of field Instrumentation and control systems related to oil, diesel and chemical. The new clamp-on transducers produce clean, coded signals with very minimal background noise. The chart is 1 1/2 minutes into video. Sanitary Flow Meters. Ultrasonic flow meters are accurate and can be used for custody transfer of petroleum and natural gas. Exact gas quantity measurement is of the utmost importance here, as even very small measurement errors could result in substantial economic loss. Gas flow meters Exact gas quantity detection - for precise billing Every day, gas flows in great quantities through pipelines, often changing owners. AGA-3/NX-19 Flow Calculations 1-21 AGA-3/NX-19 FCU Factor Calculations 1-24 AGA-3 1992 Flow Calculations 1-26 Algorithmic Detail of Realtime Implementation of New Equation for Gas 1-32 Definitions of Flow Calculation Terms 1-39 Chapter 2: Installation Overview 2-1 Unpacking & Inspection 2-3 FCU Meter Run Installation 2-4. Flow meter for heavy duty industrial applications. Gas mass flowmeters and controllers (thermal dispersion) are very accurate, because they have no moving parts and measure the mass of gas not volume. All models come with a field wiring junction box for easy installation. 002 GPM in liquids and 0. Flow meters for every industry and medium - by use of ultrasound and without media contact. Gas Flow Meters. Typical measuring errors are 1 to 3%. Gas meter and software with various features are integrated to develop a variety of solutions to satisfy our customers' need. 10-to-1 turndown ratio (the lowest measurement is one tenth of the full-scale reading. A flow meter is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. With one compact gas flow meter you can measure mass flow, volumetric flow, pressure and temperature. We provide best solutions that will meet the extreme conditions associated with your subsea and oil and gas applications. Liquid flow meter calibration facilities should therefore be able to measure flowrates to uncertainty levels between 0. The density of gases depends greatly upon pressure, temperature and to a lesser extent, composition. Select the unit to convert to in the output units list. Applications include calculating required fill or drain times for tanks, water towers, backflow prvention, heat exchangers, and oil & gas equipment. Fully calibrated: All TSI flow meters and flow sensors are characterized against a flow reference and have extensive gas calibrations stored on-board. Fail-safe inline flow indication under any circumstance. This Flow Meter is calibrated in SCFH. Use the Select By Application tool to narrow your search for a flow sensor based on media type, and read more about the underlying measuring principles and technology. GAS METER FREE 2D CAD Block. Wet Gas Flow Meter listed as WGFM. Every Waukee Flo-Meter is calibrated to within +/- 3. These pressures normally refer to values in (perhaps notional) plenums at the entrance and exit of a duct or a system fitting such as a valve. Typical recommendations suggest 35 straight pipe diameters upstream and 5 straight pipe diameters. Custom calibrations are available for changes in Density, Viscosity, Pressure & also Temperature. A sales and service center was opened in the Netherlands in 1993. Details Published: Monday, 25 September 2017 22:31 Natural Gas Flow meter. In-Line In-line flowmeters are indicators for flow rate. 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. In selecting the size of all flowmeters, we want to get the normal flow into the center of the range. Find water flow switches, flow meters for oils, gas flow meters, and deionized water flow sensors from the various ifm platforms. This pipe also contains the flow meter, which is a cast iron or aluminum chamber containing a series of gears or a simple rotor that ticks off units of gas as they pass through. Fully calibrated: All TSI flow meters and flow sensors are characterized against a flow reference and have extensive gas calibrations stored on-board. For utility applications, advanced energy management and Safety Instrumented Systems (SIS) View category details. The Gas Flow Monitor (GFM™) precisely measures flow rates of welding shielding gases using the state of the art MEMS flow sensor with OLED graphic display. Our flow meter calibration services include research and development for metering and flow measurement equipment used in natural gas pipelines and gas-fired power plants. Measure the flow rate of water in your system. The Humonics Optiflow 520 is a bubble flowmeter, one of the most useful tools in a GC lab. Orifice flow meters are used to determine a liquid or gas flow rate by measuring the differential pressure P 1-P 2 across the orifice plate. Gauge mounting block with hot tap valve for installation and removal without interruption of the flow. Flowquip offer a wide range of gas flow meters. 6 SG Gas @ 7" WC). Using a flow meter, check that the shielding gas flow is set properly. Customised to your needs. In the gas flow discipline, flowrates are often expressed as "flow at standard conditions". Gas flow over the bare filament will then cool it, changing its resistance. Material: All standard materials available. If well pressure drops and water flows from the formation to the well bore and accumulates, it creates a gradual increase in backpressure. Compact, lightweight, immediate results. Every day, gas flows in great quantities through pipelines, often changing owners. The honing operation creates a smooth and consistent bore surface end-to-end. Flow rates between 1sccm up to 1,500 slm are measured. Flowmeters for copper pipe up to 4" are also available. The first step toward energy savings is to identify the optimal air-to-fuel ratio by monitoring air and fuel flow rates to burners. The gas flow pushes on them and causes them to rotate in opposing directions. Darhor is a well known flow meter manufacturer with a great deal of experierence. The V-Cone flow meter like several other popular meters is a differential pressure (or "DP") meter. The price of the meter technology is one aspect to consider as well as installation and life cycle costs for the total ownership cost (includes factors such as footprint, flow conditioning, maintenance and calibration requirements). The FD-G Series flow meter monitors compressed air and gases by simply clamping on to pipes from 3/4 inch to 8 inch and is completely non-invasive. For example, a user who is willing to operate at differential pressures of 200 in. The correct Gas Flow Rate for a Mig will depend on a number of factors: The diameter of the Gas Shroud. They ether work or don't. 5 GPM Accuracy: +/-1% Linearity +/-. The working principle of orifice plate flow meters. The equations use SI. The secondary phase should be removed, if feasible, before the meter for the highest accuracy. Equation 1 shows the relationship. Elster Meter diaphragm meters are displacement meters where the flow channels are designed to guarantee optimum flow conditions and a low pressure loss. Gas flow ranges from 40 SCFH (1 Nm3/h) in 1/2" meter to 20,000 SCFM (600 Nm3/m) in 8" meter. 50mm, 75mm, 100mm, 127mm, 250mm scales. Proper post-flow time in seconds is determined by dividing welding amps by 10. In the gas flow discipline, flowrates are often expressed as "flow at standard conditions". Flow meters such as Magnetic, Ultrasonic, Differential pressure, Positive Displacement, Variable Area, non-compensated Vortex and Turbine meters are strictly volumetric flow meters. Please note that a non-linearity may exist between a Nitrogen calibration and the actual flow of process gases. 9 x10-7 percent of the transmitted sound energy is received by traditional ultrasonic transducers. All Measurement products. Temperature, pressure and heating value compensation must be made to measure actual amount and value of gas moving through a meter. Whether your application requires a gas flow meter, where thermal flow meter, vortex flow meter, or differential pressure flow meter technologies all may be suitable, or a liquid flow meter with choices between ultrasonic flow meters, magnetic flow meters, variable area flow meters, positive displacement flow meters or turbine flow meters all being applicable, the SmartMeasurement™ flow. LL, LP, LH Series. 5%, depending upon the complexity of the system and its design, while calibration systems for gas flow meters should be able to measure flowrate to uncertainty levels of between 0. 50020 Shield Gas Flow Tester. Please call 717-514-4952 for immediate answers. Exact measurement is half the battle RMG gas meters guarantee exact values for fiscal and non-fiscal measurements. Flow meters are used to measure the volumetric or mass flow rate of a liquid or gas. 50mm, 75mm, 100mm, 127mm, 250mm scales. You don't really need to know the formulas and science behind the scenes but hopefully, in this video, we will give you some idea of. Orifice Coefficient (C) Beta Ratio (β). 2 ISO-5167 standard and its mass flow rate formula. We offer complete flow measurement packages for the offshore drilling, production and well-servicing environments. An accurate flow measuring venturi or flow nozzle at the pulverizer inlet will allow you to calibrate your optimum primary air/fuel ratio. Vortex flowmeters. They are commonly used in the transfer of oils and fluids, like gasoline, hydraulic fluids as well as in-home use for water and gas applications. security, floor plan, energy, oil and gas, and manufacturing. An accurate flow measuring venturi or flow nozzle at the pulverizer inlet will allow you to calibrate your optimum primary air/fuel ratio. This versatile product is an electronic device capable of measuring volumetric flow for all types of gases. 5% RD +/- 0. This is a great gas meter that can be read locally, or can be set up to be read remotely when paired with an Omnimeter Pulse v. They consist of an adjustable pressure supply, a pressure gauge (calibrated in units of flow) and a special orifice. Gas mass flowmeters and controllers (thermal dispersion) are very accurate, because they have no moving parts and measure the mass of gas not volume. A wide variety of propane gas flow meter options are available to you, There are 453 suppliers who sells propane gas flow meter on Alibaba. Hach FLow, Marsh McBirney and SIgma Hach's flow products and services have a proven track record in open-channel flow measurement. The fluid travels through single or dual curved tubes. was established in the year 1998. Turbine Flow Measurement. This site is currently being translated automatically and may contain errors or other misinformation. This specialization has allowed King to be a customer-focused provider of one of the most comprehensive lines of standard and specialized variable area flowmeters anywhere in the world today. com, of which flow meters accounts for 81%, energy meters accounts for 1%. Ammonia production is another industry where the feedstock is natural gas and due to the large volumes consumed, AGA gas correction is justified. Low Flow Gas Meters. Volumetric flow meters measure the volume of fluid passing through the equipment. Usually the application will limit the choice; working pressure, temperature, flow range, required accuracy, price, is power available etc. As a certified greenhouse gas (GHG) air flow meter, the Steel-Mass: Meets all requirements defined by the EPA (40 CFR Part 98). I verified the accuracy of the pressure gauge and flow meter (at a typical 15 SCF/Hr rate) and they're both good, unlike one from another manufacturer that I returned. for coolant and lubricant supply of plants and power units or ventilation of installations and buildings. Totalizers measure the cumulative flow volume. View category details. The component’s packaging will be individually labeled with Part Description, Flow Direction, Flow Reading (SCCM, SLPM, TORR), size in microns, and date. Thermal mass flow meter technology utilizes the relationship between flow rate and cooling effect for direct measurement of mass flow. Maximizing well production is the key to maximizing profits. Flow Meters for Industrial Gas - simple and inexpensive mass flow monitoring for common industrial gasses with local LCD reading, transmitter and optical set points. The chart is 1 1/2 minutes into video. At the heart of every mass flow sensor is a MEMS based calorimetric microsensor, which measures the gas flow using the thermal measurement principle. The DATTUS III is a highly-accurate, solid-state gas meter suited for commercial and industrial gas measurement applications for flow rates from 800 to 56,000 actual cubic feet per hour (acfh). Variable Area Flowmeters. New product: magnetic flowmeter designed for oil and gas. This easy to use device will take the guesswork out of optimizing your welds, and save on shield gas cost. NIST/ Weights & Measures. And has been engaged in the manufacturing of Electromagnetic Flow Meters, Gas / Steam Flow Metering Systems & other related process instruments. The Fluenta FGM 160 measures gas velocity based on the time-of-flight technique. Low flow rate version: 7-70 ACFM; 10-100 MCFD; 423-4230 MBH; 365 pulses per ACF (12900 pulses per m3). A wide variety of propane gas flow meter options are available to you, There are 453 suppliers who sells propane gas flow meter on Alibaba. Canada Pipeline Accessories’ minimum recommended meter run length is 10 internal pipe diameters. Darhor is a well known flow meter manufacturer with a great deal of experierence. Flow computers measure, monitor, and may provide control of gas flow for all types of meters. I verified the accuracy of the pressure gauge and flow meter (at a typical 15 SCF/Hr rate) and they're both good, unlike one from another manufacturer that I returned. cuft/d, in cubic meters Sm^3. A selection of fine control needle valves suitable for gradual opening and closing of gas or liquid flows. Fuel Flow Meters Boaters Marine Supply offers Boat - Marine Fuel Flow Meters, Marine Engine Gauges, and Boat Gauges so you will always be able to monitor your boats systems. Is optimized for highly accurate and repeatable mass flow meters for methane (CH4) as well as N20, SF6, HFCs, PFCs and CO2, per the EPA mandate. Flow Gauge/Meter. Gas Flow Standards Fluke Calibration offers molbloc/molbox gas flow calibration systems to calibrate flow meters and controllers over a very wide range of flows. Produced water, drilling mud and fracking fluid measurement made easy. Complete Flow Loops. Mass Gas Flow Meters. They can also be known as flow gauges or liquid meters. Regular price: $23. MI Flow Meters Flow Meters Multi-point flow meter. 5 GPM Accuracy: +/-1% Linearity +/-. The ultrasonic flow meter is the fastest-growing segment of the flow meters market on account of their low maintenance and reliability. Our central warehouse is located in the suburbs of Harrisburg, Pennsylvania where w e ship powerful liquid and gas clamp-on ultrasonic flow meters directly to your job site via FedEx Express anywhere in North America by tomorrow morning. Typical gas flow should be approximately 30-40 cubic feet per hour. 6 to 40 lpm of Water. The MAX35104 is a gas flow meter system-on-chip (SoC) targeted as an analog front-end solution for the ultrasonic gas meter and medical ventilator markets. Medical gas flow meters measure the flow rate of gases such as oxygen, air, or nitrous oxide. gas temperature & pressure, if it changed to pressure of 1atm (14. HGCMF-SV series Coriolis mass flow meter; Oval Gear Flow Meter; Metal Tube Rotameter; Insertion Electromagnetic Flow Meter; Sanitary Electromagnetic Flow Meter; Liquid Turbine Flow Meter; Thermal Mass Flow Meter; Target Flow Meter; Verabar Flow Meter; Gas Turbine Flow Meter; V-cone Flow Meter; Ultrasonic Open Channel Flow Meter; Handheld. Welcome to the First of its kind E-commerce website exclusive to Industrial Burners and It's Spare Parts. We guarantee this product to be free from defects in materials and workmanship 90 days from the date. Flow meters are used to measure the volumetric or mass flow rate of a liquid or gas. DP Diagnostics can supply the flow meters in a variety of configurations, such as a venturi flow meter or cone. A gas flow meter is a device used to measure the flow rate of a gas. Fully calibrated: All TSI flow meters and flow sensors are characterized against a flow reference and have extensive gas calibrations stored on-board. )These flow meters give a repeatable reading in mass or standard volume with no external temperature or. There are multiple applications where gas flow rates need to be accurately measured. Small Diameter Gas Orifice Flow Meter. The Digital Flow Meter GF-1010 The new pocket sized GF 1010 gas flow meter makes gas flow measurement easier and more accurate, helping to eliminate user errors. New product: magnetic flowmeter designed for oil and gas. SICK offers gas flow meters which are absolutely accurate and rugged at the same time - especially for custody transfer. This site is currently being translated automatically and may contain errors or other misinformation. A flow meter is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. Ultrasonic Flowmeters. Note that a liter (L) is 1/1000 of a cubic meter or 1000 cubic centimeters (10 -3 m 3 or 10 3 cm 3 ). Mass flow leak testing is important in determining the integrity of parts and components. Thermal mass flow meter technology utilizes the relationship between flow rate and cooling effect for direct measurement of mass flow. K-factor Calculator Step 1: Choose Meter Type Choose Meter Type EX810/EX820 EX110 EX150 EX210 EX250 IP810/IP820 IP110 IP210 IP150 IP250 TX810/TX820 TX110 TX210 TX150 TX250 K-Factors for TX series flow meters are valid ONLY for meters purchased after January 1, 2011. I verified the accuracy of the pressure gauge and flow meter (at a typical 15 SCF/Hr rate) and they're both good, unlike one from another manufacturer that I returned. Coriolis Mass Flow Meter, Quantim® 5850EM Series -- QMBC2 / QMBM2 / QMBC3 / QMBM3 / QMBC4 / QMBM4: Achieve superior accuracy and unmatched zero stability in ultra-low-flow gas and liquid measurement and control with the Quantim® Coriolis mass flow controllers and meters from Brooks Instrument. Thermal flow meters are available in high-pressure and high-temperature designs, and in special materials including glass, Monel®, and PFA. Of course, accuracy is important, and all flow meters are not created equal. Low Flow Gas Meters. Three times more accurate than standard totalizers for water, these are rated for ±1. Accurate, good quality, fair price. Sierra designs and manufactures a wide range of today's most advanced analog and digital gas flow meters, mass flow meters, controllers and switches across three core technologies: Capillary Thermal, Immersible Thermal, and Mass Vortex. The FCS-8 Series and the FCS-9000 Series offer outstanding accuracy and ease of use for calibrating other flowmeters of various types. The honing operation creates a smooth and consistent bore surface end-to-end. Standard conditions are synonymous with the term "base conditions" or "normal conditions". A cubic foot of gas is the amount of gas needed to fill a volume of one cubic foot under set conditions of pressure and temperature. Here you will find various flow meters. Process Solutions With Integrated Metering Solutions Elster-Instromet develops innovative concepts to provide you with an effective and constructive technology for your up- and midstream gas quality and gas volume measurement challenges. A gas meter is a specialized flow meter, used to measure the volume of fuel gases such as natural gas and liquefied petroleum gas. Schlumberger's subsea multiphase flow meters provide critical well data without complex testing operations. Now you can accurately and conveniently measure the actual shield gas flow rates at the torch. Flow sensors / flow meters. 01 ACFM in gases). For process and utility applications, energy and custody transfer (CT) measurements. This results in an accurate measure of flow rate, generally measured in liters per minute. CAD Models In This Category. 84 FLOW OF GASES THROUGH TUBES AND ORIFICES where Pf,I is the upstream pressure and Pd is the downstream pressure. One of the most versatile of flow meters, vortex flow meters, can easily measure gas, liquid, steam flows. OLED graphic display provides digital flow rate of 5 to 255 SCFH with a 1 SCFH resolution. Flow Pulse offers you exceptional repeatability at a fraction of the cost of an equivalent magflow meter. When the substance passes through tubes, the float is actually displaced by the flow. Medical gas flow meters measure the flow rate of gases such as oxygen, air, or nitrous oxide. McMillan is a world leader in providing flow measurement and control products including Liquid & Gas Flow Sensors, Switches, Meters, and Controllers. The chart is 1 1/2 minutes into video. What is a Flow Meter? Measure down to 0. Friction pressure drop (packed screens) 3. In remediation air and gas flow applications, the density changes with the pressure and temperature so is accounted for in the following calculations. Gas Flowmeters Gas flow meters from BOC are designed to give you easy-to-read gas flow measurements and provide more precise control over gas flow when welding. We Can Help You Choose a Gas Flow Meter. Output signals of 0 to 5Vdc and 4 to 20mA are generated indicating mass molecular based flow rates of the metered gas. Manas Microsystems Pvt. Gases are more difficult to measure than liquids, because measured volumes are highly affected by temperature and pressure. Ranges from 0 - 10 Nml/min to 0 - 50 Nl/min. Swagelok® variable area flowmeters measure the flow rate of liquids and gases by means of a tapered tube and float. Victor 0781-2744 at $215. Gas flow meters measure fluids, and fluids by definition can be a liquid or gas. 1 Basics 1. With no moving parts and minimal invasiveness, thermal flow meters provide a highly repeatable, accurate, low cost, easy to install. A gas meter measures the volume of gas consumed at commercial, industrial or residential premises. Regulator/Flow Meters for TIG Applications with Argon CGA 580 Male Inlet Connection. 84 FLOW OF GASES THROUGH TUBES AND ORIFICES where Pf,I is the upstream pressure and Pd is the downstream pressure. PD flow meters include piston meters, oval-gear meters, nutating disk meters, rotary vane type meters, etc. While nominal flow rate is commonly associated with fluids, it is also used to refer to the flow of gaseous materials. About China Thermal Mass Gas Flow Meter FOB price, Payment, OEM information, Flow Meter from china on topchinasupplier. For their gas flow meters - volumetric TG, MGC and BG. One third of all flowmeters are used in gas applications. Therefore, your meter is oversized, as average flow is near the minimum detectable. In the oil and gas industry, the flow of liquids and gases must be measured during every phase of exploration, production and transportation. The OleumTech® OTC Wireless Flow Totalizer Transmitter is designed to work with virtually any third-party turbine flow meters for accumulating volume of liquid with high accuracy of ±0. other gas flow technology. It is ideal for both natural gas custody transfer and the highly precise measurement of process gases in the chemical industry. Gas Purging Equipment (21 products). Use with extremely corrosive and inert gases. This technology works on a constant temperature differential principle. With high chemical resistance ; For front panel mounting ; Heatable and heated ; Optical flow alarm sensors ; Electronic controllers for optical flow alarm sensors ; Optical flow monitoring up to 180°C ; Sample Gas Pumps ; Valves, Fittings and Hoses ; Gas Converters and Burner Air Conditioning ; Analyzers ; Gas Conditioning. We supply all your needs for safe gas purging including the GEA professional gas to air fan purge unit that enables purging and decommissioning to be carried out safely according to the 'Institution of Gas Engineers and Managers' documents UP/1 and 1A. For a wide range of applications the. Use our GFM series flow meter for measuring flow rates of bio-gas, LPG, compressed air, steam (saturated & superheated) in closed pipes. Choose from a variety of variable area flow meters (rotameters) and electrical flow meters including gas mass, differential pressure, turbine, paddle-wheel sensors, gear. New product: magnetic flowmeter designed for oil and gas. Since our establishment in 2004, our team we have been dedicating ourselves in providing high quality and insightful solutions to satisfy our customer's rigorous requirement especially in the Oil & Gas industries where standards and. Simple installation; easy to read. Flowmeters measure the rate of flow for a liquid or a gas. Lobed impeller gas totalizers are frequently used to measure gas flow volume. One of the capabilities of thermal mass flow meters is to accurately measure low gas flowrates or low gas velocities (under 25 ft. DFM 150 Series Flow Meter. The Compact Gas flow meter and Compact Steam flow meter is an indigenously developed product & has been launched in 2012. For simple and cost-effective flow measurement of gases or liquids without auxiliary power. The flow team at Emerson has more experience in the oil & gas industry than almost any other industry manufacturer. When attached to the outside or inside of a pipe, they gauge things like: material flow mass, material flow volume or material flow speed. The volume flow rate is defined as the volume of the fluid passing through a given surface in a unit time, and it is measured by cubic meters per second. associated with your subsea and oil and gas applications. Some are essential to make our site work; others help us to better understand our users. The honing operation creates a smooth and consistent bore surface end-to-end. Flange is a projecting flat rim, collar, or rib on an object, serving for strengthening or attachment or (on a wheel) for maintaining position on a rail. Thermal mass flow meter technology utilizes the relationship between flow rate and cooling effect for direct measurement of mass flow. Flow meter sensors work in different ways, but with the same end goal: Provide the most accurate and repeatable flow measurements for a specific application, whether for process control, general research activities, or. EXAIR's Hot Tap Digital Flowmeter is designed to be. p= pressure. designed to deliver. They are generally less expensive to install and manufacture than the other commonly used differential pressure flow meters;. For this reason, accurate and repeatable measurement of natural gas flow requires simultaneous mea-surement of several other variables, includ-ing pressure, temperature, density, and gas composition. Choose from a variety of variable area flow meters (rotameters) and electrical flow meters including gas mass, differential pressure, turbine, paddle-wheel sensors, gear. Condensate Load. To measure larger amounts of natural gas, a "therm" is used to denote 100 cubic feet, and "mcf" is used to denote 1,000 cubic feet. 65 second time period, it measured a native volumetric flow of. From Piping at Start-up. 10-to-1 turndown ratio (the lowest measurement is one tenth of the full-scale reading. Some meters provide an option to provide a mass flow if the meter is a multi-meter that measures volumetric flow, pressure, and temperature.   The gas flow meters have a battery powered LCD which can display flow rate and total. Platon LG series The LG series are our low cost miniature Glass Tube VA flowmeters for surface panel mounting where small size is important. The solution consists of backstage billing and billing at the meter terminal. We have measure the gas blast flow rate at weld starts of 200 CFH (~100 liters/min. The complete system provides your gas meter data in the cloud for free! No recurring fees of any kind. We supply all your needs for safe gas purging including the GEA professional gas to air fan purge unit that enables purging and decommissioning to be carried out safely according to the 'Institution of Gas Engineers and Managers' documents UP/1 and 1A. 04 – 60 SCFM. Simplify installation, maintenance and verification using a gasket-free meter design to ensure maximum process reliability. Others use a non-self-centering flow tube ball that tends to float off center causing actual gas flow to be greater than indicated. Yokogawa's range of flow meter instruments include vortex, magnetic, variable area, Coriolis, and differential pressure flow meters. com is a leading supplier of quality flow measurement products specializing in flow meters. By using gas temperature and pressure, Volumetric Flow Rate can be converted to other units such as SLPM, Etc. ASCO Introduces 362/562 Series Spool Valves in 3/4-inch and 1-inch Sizes with Industry's Highest Flow Rates New cabinet mount valve Island solution saves engineering and assembly time Search. Now you can accurately and conveniently measure the actual shield gas flow rates at the torch. Contact Us GCE corporate head office: GCE Holding AB, Källvattengatan 9, Box 21044, 200 21 , Malmö, SWEDEN. manufactures vane style, vortex shedding, rotameters and laminar flow element flowmeters for use in industry. We are Manufacturer, Supplier, Exporter of Steam Flow Meters, Gas Flow Meters. Complete Flow Loops. Designed for Laboratory or high accuracy applications, The Bronkhorst El Flow Mass Flow meters and Controllers offer analog and digital outputs as standard Multi Gas/multi range options available Industry leading Accuracy+/-0. 84 FLOW OF GASES THROUGH TUBES AND ORIFICES where Pf,I is the upstream pressure and Pd is the downstream pressure. Whether measuring gas flows in a laboratory or manufacturing setting, TSI general purpose mass flowmeters provide accurate results with multiple data output options. The solution consists of backstage billing and billing at the meter terminal. Now you can accurately and conveniently measure the actual shield gas flow rates at the torch. AND you get to see the answer in 5 other different units !! 2) Water is flowing through a 10 centimeter diameter pipe, at a rate of 9 liters per second. Sensirion's mass flow meters ensure fast, accurate and economical measurements of gas flow over a wide dynamic range. Flow measurement is the quantification of bulk fluid movement. manufactures vane style, vortex shedding, rotameters and laminar flow element flowmeters for use in industry. The FD-G Series flow meter monitors compressed air and gases by simply clamping on to pipes from 3/4 inch to 8 inch and is completely non-invasive. The honing operation creates a smooth and consistent bore surface end-to-end. Therefore, your meter is oversized, as average flow is near the minimum detectable. Technical Overviews. First, we need to start with fluid mechanics, or to be specific, Bernouilli’s principles – the physics behind the differential pressure flow meter. QED Environmental Systems is a leading manufacturer of air-powered environmental pumps for Ground Water Remediation, Ground Water Sampling, and Landfill Leachate & Methane Condensate pumping since 1982. Regulatory Approvals. Flowrate Orifice Diameter Pressure Drop. of water column would be able to flow more than 40% more gas through an identical device than a user who limits the differential pressure to 100 in. Its non-intrusive measurement technology ens… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Orifice flow meters are generally less expensive to install and manufacture than the other commonly used differential pressure flow meters; however, nozzle and venturi flow meters have the advantage of. This means, while measuring the thermal mass flow or standard volume flow, no additional temperature and pressure compensation is necessary. FLOW MEASUREMENT. Universal Flow Monitors, Inc. Hide full Aims & Scope. One third of all flowmeters are used in gas applications. Digital gas flow meters are available for flow range 0~10L/min, 0~25L/min with 6mm diameter and 0~200L/min with 12mm diameter. MATHESON Flow Measurement and Control products include a broad range of flowmeters and rotameters, plus gas proportioners, gas mixers, mass flowmeters and mass flow controllers, plus systems for gas blending and gas dilution. Dalam memilih flow meter harus disesuaikan dengan kondisi fluid dan fungsi flowmeter itu sendiri. For process and utility applications, energy and custody transfer (CT) measurements. Shielding gas protects the molten weld puddle from the gases in the atmosphere that cause pinhole imperfections, or porosity, in the weld. , a reduction in the cross sectional area available to the flow) causes an increase in flow velocity and a corresponding. Mass Flow Meters FCI designs, manufactures and sells a broad line of thermal mass flow meters for air and gas flow measurement. All of the meters are approved for custody transfer measurement by the German PTB and to EN 1359 by German DVGW. The OleumTech® OTC Wireless Flow Totalizer Transmitter is designed to work with virtually any third-party turbine flow meters for accumulating volume of liquid with high accuracy of ±0. From simple flow indicators to advanced bus-compatible electronic systems, the trusted SITRANS F product family has versatile and reliable metering solutions built to suit every industry and process. The meters are MID approved and fully comply with EN12480 and OIML R137. com! Live Chat Software. 50mm, 75mm, 100mm, 127mm, 250mm scales. Bronkhorst offers the widest product range of thermal mass gas flow meters and gas controllers on the market. The first thing to do to adjust the flow rate of your shielding gas is open your shielding gas tank valve the whole way. Some meters provide an option to provide a mass flow if the meter is a multi-meter that measures volumetric flow, pressure, and temperature. Get it as soon as Sun, Apr 12. Determining air flow is a matter of multiplying the cross sectional area of a duct by the air velocity. A flowmeter measures the rate that fluid or gas moves through it. FMT SERIES FLOW METERS are capable of measuring extremely low flow rates (0. Professional Flow Meter Manufacturers Our main products are electromagnetic flow meters, paddle wheels and turbine sensors, battery powered electromagnetic water meters, gas flowmeters and rotor flow measurement. It is a non-destructive form of testing that is highly effective for detecting small leaks and is used for the testing of gas meters, appliances, exhaust systems and more. We are also the reference for the calibration of gas meters, having developed a unique procedure for the calibration of diaphragm and rotary meters. 07 m/s by 0. Here you will find various flow meters. Influence quantities, whether unknown or not taken into account, can have a significant influence on the result. flow measurement technology is not the only consideration because the ultimate measurement—and what the customer pays for—is energy delivered. The M-50 Series low flow, flow switches monitor increasing and decreasing flow. All Measurement products. Download PDF Brochure- Wet Gas Venturi Flow Meters : Venturi Meter Based Wet Natural Gas Flow Metering Size: 3" to 24" for any pipe schedule. for coolant and lubricant supply of plants and power units or ventilation of installations and buildings. Gas flow meter setup for welding - Save gas - Tips for gas leak checking - Duration: 2:50. Whether your application requires a gas flow meter, where thermal flow meter, vortex flow meter, or differential pressure flow meter technologies all may be suitable, or a liquid flow meter with choices between ultrasonic flow meters, magnetic flow meters, variable area flow meters, positive displacement flow meters or turbine flow meters all being applicable, the SmartMeasurement™ flow. The sensor element is integrated with the complete signal conditioning. Digital gas flow meters are available for flow range 0~10L/min, 0~25L/min with 6mm diameter and 0~200L/min with 12mm diameter. Mass Gas Flow Meters. The fact that this meter is loop-powered means that there is no need to run additional, costly power lines into a hazardous area. 24/7 performance so you can keep a sharp eye on your production testing and monitoring. Flow Meter Selection Just got Easier. Honing gas flow meter tube bores in an automatic cycle saves the operator from time-consuming and physically-exhausting bore preparation. Low flow and vacuum variants are available in the VenTest 801VAC and VenTest 802 LOW. The meter measures flow rate in actual liters per minute to an accuracy of +/- 1% over the range of 0. Ultra-hi Flow Twin 1 Disp. What’s the right Gas Flow Rate for a Mig is a question we get asked a lot, but like many things in welding, there’s no definitive answer. From mass flow meter calibration through to flow sensor calibration, you can trust us to provide the highest standard of service. com, mainly located in Asia. Here you will find various flow meters. Flow meter merupakan instrumen guna mengukur aliran dari suatu fluida baik liquid ( liquid flowmeter), sludge ( sludge flow meter) maupun gas ( flow meter gas), baik bertemperatur rendah hingga temperatur tinggi. Utilising a common oil and gas pipeline or shared infrastructure brings the challenge of maintaining precise volume measurements, as even the smallest inaccuracy can come at a high cost. Heading: Gas Flow Meters, City: Ahmedabad, Results: Asha Technocrats, Involvements: Gas Trains Gas Regulators Asha Technocrats near me with phone number, reviews and address. What is the difference between gas flowmeter calibration and mass flowmeter calibration? A gas flowmeter measures the amount of a substance that flows through the device and would be expressed some amount of volume in a given time e. Bronkhorst offers the widest product range of thermal mass gas flow meters and gas controllers on the market. They are extremly reliable and long-term stable and are free from zero-point drift. This type of meter uses two lobed impellers that look a little like a figure eight. Compact, lightweight, immediate results. Although industrial gas flow meters are widely utilised for liquid and water applications, it has long been accepted that clamp on gas flowmeter technology could not be applied to mass gas flow measurement primarily due to fundamental theoretical measurement limits. A typical optimum air/fuel ratio is between 1. The ultrasonic measurement technology has no moving parts and is virtually maintenance free. KOBOLD offers a variety of flow sensors that can directly determine the flow rate of a gas or a liquid. Our standard calibration gases include Dry Air (D. Typically, a flow element such an orifice plate or Venturi tube will come with a flow data sheet with expected process conditions and a table of flow rates for various DPs. G6691A ADM Flow Meter Operating Instructions. Interface electronics are provided to measure displaced volume and the time over which the volume is displaced so that a precise flow rate can be determined. This site uses cookies to store information on your computer. In-line version. We have mastered and set higher standards for the calibration of gas flow meters and controllers. Buy your gas flow meters online from BOC today. In other words a 6-in. You can set the contract hour and set the flow rate to per second, minute, hour, or day. , a reduction in the cross sectional area available to the flow) causes an increase in flow velocity and a corresponding reduction in pressure. 3 kilowatt-hours or 105. CHAPTER 1 INTRODUCTION TO FLOW METERS HOW TO SELECT A FLOW METER. If a sensor measures. Ultrasonic Flowmeters. In the oil and gas industry, the flow of liquids and gases must be measured during every phase of exploration, production and transportation. Regulatory Approvals. 1 Flowmeter Demographics. Each gas flowmeter or controller meets exacting standards, and we can also customize your flow. Steam Flow Rate through a Valve. The following table lists theoretical gas correction factors for various gases with respect to Nitrogen for thermal-based mass flow controllers. p= pressure. 005062 cubic feet of a gas over a 4. Block Type, Panel Mountable. Process Solutions With Integrated Metering Solutions Elster-Instromet develops innovative concepts to provide you with an effective and constructive technology for your up- and midstream gas quality and gas volume measurement challenges. Applications of special interest are circulating lubrication fluid, cooling water, industrial gas, corrosives and brine. 3/4" Pulse Output Gas Meter - PGM-075. A2LA Accredited ISO/IEC 17025 & ANSI/NCSL Z540-1. Low flow rate version: 7-70 ACFM; 10-100 MCFD; 423-4230 MBH; 365 pulses per ACF (12900 pulses per m3). The ProtEX-RTA PD6820 is an explosion-proof, loop-powered flow rate/totalizer that can display flow rate and total from an analog output (4-20 mA) flowmeter. DFM 150 Series Flow Meter. If the dimensions of the duct are known, then the cross-sectional area can be easily determined and the volumetric flow calculated. Mounting possibility for pressure and dew point sensors. Designed for both MIG and TIG welding jobs, this gas regulator/flowmeter is cast brass with a sturdy steel body gauge to withstand the most abusive jobsite environments. Various types of flow meters and flow sensors are available, and only by selecting the appropriate device according to the targeted fluid and purpose will the required results be obtainable. It is ideal for both natural gas custody transfer and the highly precise measurement of process gases in the chemical industry. The Kurz Series 454FTB is the premier single-point insertion thermal mass flow meter for industrial gas flow measurements. 1 Basics 1. P900 Series Glass Tube Rotameter The P900 Series Glass Tube Rotameter has an accuracy of +/- 2% Full Scale and a flow range of 288 SCFM Air. Air or gas or mixture of gasses may be used. Numerous styles of both standard and bespoke instruments can be offered for applications in laboratory, machinery, industry and hazardous areas, for flow ranges from 0,014 mln/min up to 11. Here you will find various flow meters. DFM 150 Series Flow Meter. While new-technology flowmeters, such as Coriolis, are beginning to make an impact on the gas utility market, in many cases they do not yet have the necessary industry approvals to allow them to be widely used for. Mark II turbo meters accept a multitude of meter-mounted readout devices and provide calibrated pulse outputs for electronic measurement. LZQ-5 flowmeter (5-25LPM flow meter) with control for Oxygen /air/gas. The TSI Mass Flowmeter 4140 (0. These products are available for pure or mixed gases. Now you can accurately and conveniently measure the actual shield gas flow rates at the torch. 01-20L/min Air, O2, N2 1/4" tube) can be used for a multitude of gas flow measurement applications. Orifice Coefficient (C) Beta Ratio (β). Welcome to the First of its kind E-commerce website exclusive to Industrial Burners and It's Spare Parts. Flow Meter Calibration For calibration of Custody Transfer Flow Meters (gas and liquids) we offer complete calibration services worldwide. LL, LP, LH Series. rtechwelding 3,019 views. And when the EtherMeter is connected to compatible AMI/AMR-type (encoder) flow meters, its transmitted consumption data is. I verified the accuracy of the pressure gauge and flow meter (at a typical 15 SCF/Hr rate) and they're both good, unlike one from another manufacturer that I returned. A large range of flow tubes are available to suit virtually any process liquid or gas. The float is pushed up by increasing fluid flow and pulled down by gravity as fluid flow decreases. Common measurement applications. Browse by industry & application. Welded flange joints can be honed in many cases without manual y pre-grinding the welds. Gas flows conversion tool for transporting velocity of gases in high volume quantities measured in several supplemental gas flow units under different temperatures and pressure in gas pipelines transiting gas to energy markets to be sold for huge profits - Standard cubic feet per minute SCFM - std. Simplify installation, maintenance and verification using a gasket-free meter design to ensure maximum process reliability. Here you will find various flow meters. Looking for abbreviations of WGFM? It is Wet Gas Flow Meter. Pressure and Flow Control. Theory of Operation A Coriolis meter is comprised of two main components, a sensor (primary element). Ultra-hi Flow Combo Disp. instrumentation, gas flow, meters, pumps, etc. So far, the installations of this product have exceeded 2000 numbers at various places in India and other countries. With one compact gas flow meter you can measure mass flow, volumetric flow, pressure and temperature. With high chemical resistance ; For front panel mounting ; Heatable and heated ; Optical flow alarm sensors ; Electronic controllers for optical flow alarm sensors ; Optical flow monitoring up to 180°C ; Sample Gas Pumps ; Valves, Fittings and Hoses ; Gas Converters and Burner Air Conditioning ; Analyzers ; Gas Conditioning. One type of gas flow meter that's often used in laboratory and occasionally used in field tests is a thermal mass gas flow meter. Flow sensors and flow indicators are flowmeter devices used to measure the amount of liquid, gas or vapour that passes through them. The 454FTB supports process temperatures from -40° C to 260° C and from -40°C to 500° C, process pressure ratings up to 300 PSIG, and a velocity range from 0 to 24,000 SFPM. Cyclonic Flow Meter is a meter designed to measure the flow rate of a fluid (or gas) within a cylindrical chamber without a differential pressure directly across the rotating member, and without the use of any bearing. 5 to 30 lpm. A flow meter is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. DM: mechanical counter head, DE: electronic counter head, measuring range: 1. Medical gas flow meters measure the flow rate of gases such as oxygen, air, or nitrous oxide. Victor Flow Meter offers a range of products for the delivery of shielding gas in the arc welding process or any application where gas flow rates, versus delivery pressure, are the primary consideration. Orifice meters which have corner pressure tappings or D and D/2 pressure tappings must meet following conditions: 50 mm < D < 1000 mm.