flow measurement units

In the world of flow meters, various units of measurement are used to quantify the flow of liquids or gases. These units help to ensure precise flow control and monitoring across industries. Let’s take a look at some of the commonly used flow meter units:

Gallons per Minute (GPM): As we discussed earlier, GPM is a popular unit for measuring liquid flow, especially in the United States, where the imperial system is widely used.

Liters per Minute (LPM): LPM is another unit for measuring liquid flow, commonly used in countries that follow the metric system. One GPM is approximately equal to 3.785 LPM.

Cubic Meters per Hour (m³/h): This unit measures the volume of gas or liquid flow per hour and is often used in large-scale applications, such as water supply networks and industrial processes.

Standard Cubic Feet per Minute (SCFM): SCFM is a unit for measuring gas flow rates. It represents the volume of gas flowing per minute, corrected to standard conditions of temperature and pressure.

Cubic Feet per Minute (CFM): Similar to SCFM, CFM is a unit for measuring gas flow rates, but without adjusting for temperature and pressure.

By understanding these commonly used flow meter units, you can better select and utilize flow meters for your specific application, ensuring accurate measurements and optimal performance.

Flow Unit Conversion Table

GPM	LPM	L/h	M3/h
1	3.785	227.1	0.227
5	18.925	1135.5	1.135
10	37.85	2271	2.271

More about:

• Density 101: What Is the Unit of Measurement for Density
• Exploring Common Units of Pressure: A Comprehensive Guide

GPM Flow Meters

GPM Flow Meters specifically refers to a type of flow meter that can use GPM as the flow indication unit. Sino-Inst’s flow rate is basically equipped with a smart display, and the flow display unit can be set and adjusted. Such as GPM, USG, L/h, Kg/h, etc.

Flow meters with GPM units are widely used to measure liquid flow in various industries. Some popular types of flow meters that measure in GPM include:

Read more about: Top Flow Meters for PVC Pipes: Find Your Ideal Match

Of course, in addition to the above several flowmeters. Other flow meters can also support GPM unit display. Such as ultrasonic flowmeter, mass flowmeter and so on.

Online Flow Measurement Units Converter Tools

Mass Flow & Density to Volume Flow Calculator	Mass Flow Rate Unit Converter	Volume Flow Rate Converter
Volume Flow & Density to Mass Flow Calculator	Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

More Flow Meter Markets and Applications

In conclusion, understanding flow rates and water meter sizes is essential for effective water management, whether you’re a homeowner, business owner, or engineer. GPM, or gallons per minute, is a widely used measurement to indicate the flow rate of water through a meter. By knowing how to read your flow meter and understanding the GPM values for different water meter sizes, you can make more informed decisions about your water usage.

We, Sino-Inst, pride ourselves on being a professional flowmeter supplier with years of experience in the industry. We offer a wide range of flowmeters suitable for various applications, ensuring that you get the perfect solution for your water management needs. So, don’t hesitate to reach out to us for expert advice, top-quality products, and outstanding customer service.

Ready to upgrade your flow meter or need help selecting the right one? Give us a call or visit our website to browse our extensive selection of flowmeters and find the perfect match for your needs. Let Sino-Inst be your go-to partner for all things related to flow measurement and water management.

Request a Quote

Featured Flow and BTU Meters

What is BTU?

BTU (British Thermal Unit). 1BTU is approximately equal to 252.1644 calories (calorie) = 0.293 watt-hour (watt-hour) = 1.055 kilojoules (killojoule)

1 BTU is the amount of heat required to heat 1 pound of pure water from 59 degrees Fahrenheit to 60 degrees Fahrenheit at an atmospheric pressure of 14.696 pounds per square inch. ​​

Btu is British Thermal Unit (British Thermal Unit) and Btu/h is “British Thermal Unit per hour”. Since 1(British Thermal Unit) = 1055.056(Joule), and 1 Watt = 1 Joule/Sec. ​​

So 1 (Btu per second) = 1055.056 (Watts), converting seconds to hours is: 1 BTU per hour = 1055.056/3600 = 0.293071 (Watts). ​​

Therefore, the power of an air conditioner with a (BTU/H) of 10000 is 10000*0.293 = 2.93 (kW).

BTU Meter Working Principle

When the water flows through the system, according to the flow rate given by the flow sensor and the temperature signal of the supply and return water given by the paired temperature sensor, as well as the time that the water flows. Calculate and display the heat energy released or absorbed by the system through the calculator.

Its basic formula is as follows:

In the formula:

Q—the heat released or absorbed by the system, J;
qm flow through heat meter
The mass flow of water, kg/h;
qv is the volume flow of water passing through the heat meter, m5/h;
ρ Density of water passing through the heat meter, ks/m3;
△h—the difference in the enthalpy of water at the inlet and outlet temperatures of the heat exchange system, J/kg;
T a time, h.

From the working principle of the heat meter, it can be seen that the heat meter is mainly divided into three parts: the base meter, the temperature sensor and the totalizer.

The base meter refers to the meter that measures the flow and converts the flow information into electrical signals.

The temperature sensor refers to a sensor that measures the temperature of the supply and return water of the heat exchange system.

The totalizer is a device that integrates and displays heat according to the formula.

Video source: https://www.youtube.com/watch?v=keD50bX1mec

BTU Measurement System

BTU measurement systems are an important component in the pursuit of energy efficiency and sustainability in heating and cooling systems.

Define BTU measurement system:

BTU measurement systems are an important tool for understanding and managing energy in heating and cooling systems. At its core, the system relies on the British Thermal Unit (BTU), a unit of measurement of heat energy. 1 BTU represents the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit.

Components of a BTU measurement system:

A key component of this system is the BTU meter. Measure the flow rate and temperature difference of a liquid passing through a heat exchanger.

The system includes:

• Two temperature sensors: installed at the inlet and outlet of the heat exchanger to measure the temperature difference.
• Flow sensor: This component tracks the flow of liquid through the heat exchanger, which is a key part of energy calculations.
• Calculator: It processes data from temperature and flow sensors to provide accurate calculations of heat energy transfer.

Applications beyond the basics

BTU measurement systems have uses far beyond basic temperature and flow measurements:

• Energy Consumption Monitoring: It provides a detailed view of system energy usage, enabling smarter, more cost-effective decisions.
• HVAC System Optimization: Ensure your heating and cooling systems are running at peak performance by pinpointing inefficiencies.
• Leak and inefficiency detection: The system can alert on leaks or inefficiencies, preventing energy loss and potential system damage.
• Improvement identification: It plays a key role in identifying areas where energy consumption can be reduced, promoting sustainable practices.

BTU Meter Types

There are different types of BTU meters, each suited for specific applications and system requirements.

BTU Meter for Chilled Water

A BTU (British Thermal Unit) meter for chilled water is a specialized device used in cooling systems, particularly in HVAC (Heating, Ventilation, and Air Conditioning) applications. Its primary function is to measure the energy consumed in cooling processes by calculating the heat removed from the chilled water

The BTU meter consists of a flow measurement sensor, two temperature sensors, and a microprocessor-based energy calculator.

The flow sensor should be installed in the chilled water return line, and the chilled water flow direction should be installed in a vertical or horizontal position. Two temperature sensors, one sensor is installed on the oil return line. The second sensor is installed on the water supply line. The thermal energy transferred from the cooling water to the consumer over a specified period of time is proportional to the temperature difference between the flow and return flow and the amount of cooling water flowing through.

Sino-Inst offers two types of BTU meters, one with ultrasonic measurement technology (ultrasonic BTU meter) and the other with electromagnetic measurement technology (electromagnetic BTU meter).

BTU meters are widely used in:

• Building HVAC Systems: In large buildings, accurate measurement of chilled water energy use is crucial for efficient system operation and cost allocation.
• Industrial Cooling Processes: Industries that require precise temperature control rely on these meters for energy management and to ensure optimal operation of cooling equipment.
• District Cooling Systems: They are also essential in district cooling systems, where chilled water is supplied to multiple buildings from a central plant.

Benefits of Using BTU Meters in Chilled Water Systems:

• Energy Efficiency: By providing accurate energy usage data, these meters help in optimizing the operation of cooling systems, leading to energy savings.
• Cost Allocation: In multi-tenant buildings, BTU meters enable fair billing based on actual energy usage for cooling.
• System Monitoring and Maintenance: Regular readings from these meters can indicate system performance and help in early detection of issues.

Whether in a commercial, industrial or residential environment, a chilled water system’s BTU meter is an important tool in managing the cooling process.

BTU Meter Installation

The installation requirements for electromagnetic heat meters and ultrasonic heat meters vary.

Personally recommend the Clamp-On ultrasonic heat meter. Because the installation is the easiest.

Clamp-On ultrasonic sensors and external clamp-on temperature sensors are available. Installation is simple and low cost.

About the installation of electromagnetic heat meter. You May refer to the following PDF.

bTU meter vs flow meter

Both BTU meters and flow meters have their own importance. BTU meters help keep heating and cooling systems efficient, while flow meters ensure the correct movement of fluids through various systems.

Feature	BTU Meter	Flow Meter
Primary Function	Measures energy usage in heating or cooling systems.	Measures the volume or speed of a fluid (like water or gas).
Measurement Type	Calculates energy by assessing temperature change and flow rate.	Measures the amount or flow rate of the fluid passing through it.
Typical Use Cases	Used in HVAC systems (heating, ventilation, and air conditioning), for efficiency monitoring in heating or cooling processes.	Used in various industries, including water treatment, chemical processing, and residential water systems.
Key Information Provided	Provides data on heat energy added or removed, crucial for energy management.	Provides data on the quantity or speed of fluid, important for volume control and monitoring.
Complexity	Generally more complex, as it combines flow measurement with thermal energy calculation.	Simpler in operation, focusing solely on fluid flow measurement.
Importance	Essential for energy efficiency and cost management in temperature control systems.	Critical for managing and monitoring fluid flow in diverse applications.

Understanding the differences can help you choose the right tool for the job. If you need to know how well your heating or cooling is working, a BTU meter is your first choice. But if you just need to know how much water or gas is flowing, then a flow meter is what you need.

Related Blogs

Sino-Inst offers over 10 BTU Meter products. About 60% of these are ulrtasonic flow meters. 40% are magnetic meters.

A wide variety of BTU Meter options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of BTU Meters, located in China.

The top supplying country is China (Mainland), which supply 100% of the BTU Meter respectively.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

Request a Quote

Request a Quote

In fluid dynamics, the flow rate and pressure are two fundamental parameters that describe how fluids (like liquids and gases) move through systems like pipes, valves, and pumps.

To understand the relationship between flow and pressure, we need to understand what flow and pressure are, how to work out the flow rate from the differential pressure, and what flow meters are used.

Pressure vs Flow vs Pipe Diameter

What is Pressure?

Pressure: This refers to the force exerted by the fluid per unit area. It is denoted by the symbol P and is typically measured in units like Pascals (Pa), bars, or pounds per square inch (psi).

What is Flow?

Flow: This refers to the volume of fluid that passes through a given surface or point per unit of time. It is often represented by the symbol Q and commonly measured in units such as liters per minute (L/min) or cubic meters per hour (m^3/h).

Flow is also divided into mass flow and volume flow. When the amount of fluid is expressed by volume, it is called volume flow. When the amount of fluid is expressed by mass, it is called mass flow.

Extended reading: Mass Flow Rate vs Volumetric Flow Rate

What is Pipe Diameter?

The pipe diameter means that when the pipe wall is relatively thin, the outside diameter of the pipe is almost the same as the inside diameter of the pipe. So the average value of the outside diameter of the pipe and the inside diameter of the pipe is taken as the pipe diameter.

Usually refers to the general synthetic material or metallic pipe. And when the inner diameter is large, the average value of the inner diameter and the outer diameter is taken as the pipe diameter.

Based on the metric system (mm), it is called DN (metric unit).

Does pressure affect flow?

Yes, pressure does affect flow. But this effect is affected by many factors, such as the resistance of the system, the flow pattern, the properties of the fluid, etc. When designing and operating fluid systems, these factors need to be considered to ensure efficient and safe operation of the system.

flow rate and pressure relationship

First of all, flow = flow rate × pipe inner diameter × pipe inner diameter × π÷4. Therefore, the flow and the flow rate basically know one to calculate the other parameter.

But if the pipe diameter D and the pressure P in the pipe are known, can the flow rate be calculated?

The answer is: It is not yet possible to find the flow velocity and flow rate of the fluid in the pipeline.

You imagine that there is a valve at the end of the pipe. When closed, there is pressure P in the tube. The flow rate in the tube is zero.

Therefore: The flow rate in the pipe is not determined by the pressure in the pipe, but by the pressure drop gradient along the pipe. Therefore, it is necessary to indicate the length of the pipeline and the pressure difference between the two ends of the pipeline in order to find the flow rate and flow rate of the pipeline.

Extended Reading: Magnetic Battery Operated Flow Meter

If you look at it from a qualitative analysis point of view. The relationship between pressure and flow in the pipeline is proportional. That is, the greater the pressure, the greater the flow rate. The flow rate is equal to the velocity multiplied by the section.

For any section of the pipeline, the pressure comes from only one end. That is to say, the direction is one-way. When the outlet in the pressure direction is closed (valve closed). The fluid in the tube is prohibited. Once the exit opens. Its flow rate depends on the pressure in the pipeline.

Extended reading: High accuracy pressure transducers

For quantitative analysis, you can use hydraulic model experiments. Install pressure gauges, flow meters, or measure flow-through capacity. For pressure pipe flow, it can also be calculated. The calculation steps are as follows:

1. Calculate the specific resistance S of the pipeline. If it is an old cast iron pipe or old steel pipe. The specific resistance of the pipeline can be calculated by Sheverev formula s=0.001736/d^5.3 or s=10.3n2/d^5.33. Or check the relevant form;
2. Determine the working head difference H=P/(ρg) at both ends of the pipeline. If there is a horizontal drop h (referring to the beginning of the pipe higher than the end by h).
   Then H=P/(ρg)+h
   In the formula: H: take m as the unit;
   P: is the pressure difference between the two ends of the pipe (not the pressure of a certain section).
   P is in Pa;
3. Calculate the flow rate Q: Q = (H/sL)^(1/2)
4. Flow rate V=4Q/(3.1416 * d^2)
   1. In the formula: Q —— flow rate in m^3/s;
   2. H —— The head difference between the beginning and the end of the pipeline, in m;
   3. L —— The length from the beginning to the end of the pipe, in m.

Extended reading: Insertion Ultrasonic Water Flow Meter – Designed for Agricultural Irrigation, Garden Management

Extended reading: High Pressure Flow Meters for Liquids-Steam-Gas

Flow Rate and Pressure Formula

Mention pressure and flow rate. I think many people will think of Bernoulli’s equation.

Daniel Bernoulli first proposed in 1726: “In water or air currents, if the velocity is low, the pressure is high. If the velocity is high, the pressure is small”. We call it “Bernoulli’s Principle”.

This is the basic principle of hydraulics before the continuum theory equation of fluid mechanics is established. Its essence is the conservation of fluid mechanical energy. That is: kinetic energy + gravitational potential energy + pressure potential energy = constant.

Extended reading: Fluid flow meter types

Have to be aware of it. Because the Bernoulli equation is derived from the conservation of mechanical energy. Therefore, it is only suitable for ideal fluids with negligible viscosity and incompressible.

Bernoulli’s principle is often expressed as:

This formula is called Bernoulli’s equation.
Where:

• p is the pressure of a certain point in the fluid;
• v is the flow velocity of the fluid at that point;
• ρ is fluid density;
• g is the acceleration of gravity;
• h is the height of the point;
• C is a constant.

It can also be expressed as:

Assumptions:

To use Bernoulli’s law, the following assumptions must be met before it can be used. If the following assumptions are not fully met, the solution sought is also an approximation.

• Steady flow: In a flow system, the nature of the fluid at any point does not change with time.
• Incompressible flow: the density is constant, when the fluid is a gas, the Mach number (Ma)<0.3 is applicable.
• Friction-free flow: The friction effect is negligible, and the viscous effect is neglected.
• Fluid flows along streamlines: fluid elements flow along streamlines. The streamlines do not intersect each other.

Extended reading: Silicon Pressure Sensor

Extended reading: Pressure Sensor Applications-Featured Industry Applications

how to calculate flow rate in pipe?

The flow rate Q can be calculated using the following formula:

Q= A × v

in:
Q is the flow rate, usually expressed in m³/s or L/min.
A is the cross-sectional area of the pipe and can be calculated using the formula π×(d/2)² (for circular pipes), where d is the diameter of the pipe.
v is the average flow velocity of the fluid in the pipe, usually in m/s.

So, to calculate the flow rate in a pipe, you need to know the diameter of the pipe and the velocity of the fluid.

how to calculate flow rate from pressure?

Calculating flow directly from pressure is more complicated because the relationship between them is affected by many factors. Such as the size of the pipe, the viscosity of the fluid and the roughness of the pipe. But under some specific conditions, the following formula can be used:

For laminar flow (slow flow rate and smooth fluid flow):

Q=(πd^4△P)/ (128*μ *L)

in:
Q is flow.
d is the diameter of the pipe.
ΔP is the pressure difference across the pipe.
μ is the viscosity of the fluid.
L is the length of the pipe.

For turbulent flows (faster flows and unstable fluid flow), the relationships are more complex and require the use of more complex formulas or empirical curves.

In summary, calculating flow directly from pressure requires consideration of several factors. In practical applications, flow meters are often used to directly measure flow, or software and simulation tools are used to estimate it.

Flow Rate and Pressure Calculator

Our Converter Tools for Pressure and Flow

Tools for converting and calculating pressure values. Help users choose suitable pressure sensors and transmitters!

Absolute pressure-Gauge pressure Converter	Pressure Unit Converter	Liquid Depth/Level to Hydrostatic Pressure Calculator
Differential Pressure Calculator	Pressure Transducer 4-20ma Output Calculator	Pressure to Liquid Level Calculator

Converters for conversion and calculation of flow. Or a calculation tool that requires flow measurement to obtain other measurement parameters. Help users choose the right flow sensor and transmitter!

DP Flow Meter Output Calculator	Flow Meter 4-20mA Current Output Calculator	Flow Velocity & Pipe Diameter to Volumetric Flow Rate Calculator
Mass Flow & Density to Volume Flow Calculator	Mass Flow Rate Unit Converter	Volume Flow Rate Converter
Volume Flow & Density to Mass Flow Calculator	Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

Featured Flow Meters

Extended Reading: Up to 800°C High Temperature Pressure Sensor

More Flow and Pressure Measurement Solutions

Extended reading: Best Price Ceramic Pressure Sensor

Sino-Inst offers over 50 flow meter for flow measurement. About 50% of these are differential pressure flow meters, 40% is the liquid flow sensor, and 20% are Ultrasonic Level Transmitter and mass flow meter.

A wide variety of flow meters options are available to you, such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.

Request a Quote

Water Flow Measurement

Water Flow Measurement can be simply divided into the following two situations: closed pipes and open channels.

Among them, pipeline water flow measurement is divided into full pipe and non-full pipe measurement. Open channel water flow measurement can be divided into regular channels and irregular rivers.

Extended reading: non contact flow meter

Water Flow Measurement Methods

With the development of science and technology and production, many places need to measure the flow of different liquids under different conditions. For this reason, after research, a variety of flow meters have been developed. These methods can be summarized as:

1. Container method. Including weight method, volume method.
2. Throttling method. Including orifice plate, nozzle, venturi tube, venturi nozzle, etc.
3. Weir flow method. Including right-angled triangle weir, rectangular weir, full-width weir and other methods.
4. Differential pressure method. Including volute differential pressure, elbow differential pressure, runner differential pressure, draft tube differential pressure, etc.
5. Flow meter method.
6. Tracer method. Including concentration method, integral method, transit time method, etc.
7. Water hammer method.
8. Ultrasonic method.
9. Metering method. Including electromagnetic flowmeter, turbine flowmeter, vortex flowmeter, etc.
10. Other methods. Including laser flow measurement technology, Pitot tube method, etc.

Extended reading: Ultrasonic Flow Meters Types & Technical Guide

Types of Water Flow Meter

There are several methods/flow meters that can be used to measure open channels:

Read more about: 5 Types of Flowmeters | 2023 New Guide to Flowmeter Types 

Featured Water Flow Measurement Devices

Read more about: How to Measure River Water Level?

Read more about: Flow Meter Selection Guide

More Liquid and Gas Flow measurement techniques

• Industrial Helium Flow Meters
• 6″ Flow Meters List | 6 Inch- DN150 Connection
• Top Flow Meters for PVC Pipes: Find Your Ideal Match
• Sea Water Flow Measurement – Magnetic vs Ultrasonic Flowmeters
• Crude Oil Flow Meter
• Digital Flow Meter for Argon Gas
• What Is a BTU Meter?
• Guide for Digital Fuel Flow Meter
• Explore Oil and Gas Flow Meters
• Velocity Flow Meters
• Strap on Ultrasonic Flow Meters
• Gear Flow Meter-High Viscosity Fluid-Micro Flow Solution
• Food Grade Flow Meters for Food & Beverage Industry
• Gas Rotameter Tips
• Float Flow Meter Technology
• Solid Flow Meter
• Sludge Flow Meter for Return Activated Sludge
• Solvent flow meters
• Grease Flow Meters
• Irrigation Flow Meters for Agriculture Water System
• Technical Guide – Thermal mass flow meter
• How does a residential water meter work?
• Chilled Water Flow Meter

Sino-Inst offers over 30 water flow meter products for Water Flow Measurement. About 50% of these are differential pressure flow meters. 40% are water meters (like the Insertion Turbine Flow Meter), and 40% are water treatment (like the Annubar flow meter ).

A wide variety of water flow meter for Water Flow Measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of water flow meters, located in China.

The top supplying country is China (Mainland), which supply 100% of the water flow meter respectively.

Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Water flow meter products for Water Flow Measurement are most popular in Domestic Market, Southeast Asia, and Mid East.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

Request a Quote

Helium flow meters

Thermal mass flow meter for helium gas flow measurement

Helium (He) is an inert gas that does not easily react with other elements and is widely used in many industrial applications. Therefore, helium flow measurement devices are very important.

Thermal gas mass flowmeter is a flowmeter that can directly measure the mass flow of helium gas. Not only is it not affected by temperature, it is also not affected by pressure. The user does not have to make corrections for pressure and temperature. And for pipes above DN65 size, plug-in installation can be selected. Effectively reduce measurement costs.

The thermal gas mass flow meter produced by Sino-Inst to measure helium has the following advantages:

1. A true mass flow meter does not require temperature and pressure compensation for gas flow measurement, and the measurement is convenient and accurate. The mass flow rate or standard volume flow rate of the gas can be obtained.
2. Wide range ratio, can measure gases with flow rates as high as 100Nm/s and as low as 0.5Nm/s. It can be used for gas leak detection.
3. Good seismic resistance and long service life. The sensor has no moving parts and pressure sensing parts, and is not affected by vibration on measurement accuracy.
4. Easy to install and maintain. If site conditions permit, non-stop installation and maintenance can be achieved. (Special customization required)
5. Digital design. Overall digital circuit measurement, accurate measurement and easy maintenance.
6. Adopt RS-485 communication or HART communication. Factory automation, integration, and optional wireless remote monitoring can be realized.
7. The power supply is optional AC220V, DC24V or AC220V/DC24V dual power supply.
8. Display content: standard voltage, instantaneous flow, cumulative total, standard flow rate, etc.;
9. Display units: NL/m, NL/h, Nm3/m, Nm3/h, L/h, Kg/h, Kg/m, t/h, t/m, g/S;

Vortex flow meter for helium gas flow measurement

The vortex flowmeter is based on the Karman vortex principle. That is, when the fluid flows through an object without flow resistance placed in the flow channel, alternating vortices will be formed behind it. Suitable for various industrial gases.

This flow meter has the following advantages for measuring helium flow:

• High accuracy and repeatability: For low-density gases such as helium, it can accurately detect the vortex frequency formed after flowing through the probe. This frequency is directly proportional to the flow rate, allowing for accurate measurement.
• No need for temperature and pressure compensation: Since helium is a single-component gas, its physical properties have little impact on flow rate due to changes in temperature and pressure within a certain range. Vortex flowmeters can directly measure volume flow without the need for additional temperature or pressure compensation.
• Wide flow range: Vortex flowmeter has a wide flow measurement range. Able to adapt to the variable flow requirements of helium in different industrial applications.
• High temperature and high pressure resistance: Vortex flowmeter can work at higher temperatures and pressures. This makes it possible to measure helium flow in harsh industrial environments.

Therefore, vortex flowmeters are ideal for measuring helium flow. Whether in precision measurements in the laboratory or in large-scale applications in industrial production processes.

Precession Vortex Flow Meter for helium gas

The intelligent precession vortex flowmeter is a new type of gas flow meter. This flowmeter integrates flow, temperature and pressure detection functions. And can automatically compensate for temperature, pressure and compression factor. It is widely used in petroleum, chemical industry, electric power, metallurgy, urban gas supply and other industries to measure various gas flows.

Therefore, the advantages of using a precession vortex flowmeter to measure helium are obvious. Installing a precession vortex flowmeter eliminates the need to install pressure sensors and temperature sensors. This also saves costs and installation time.

Metal Rotameter for helium gas flow measurement

Metal rotor flowmeter is an area flow measurement instrument commonly used in industrial automation process control. It has small size and stable and reliable operation. Suitable for measuring liquids, gases, various flow rates and use in various environments.

The metal rotor flowmeter is only suitable for helium flow measurement in DN15~DN150 pipelines. But its measurement also has unique advantages:

• Suitable for flow measurement of small diameter and low flow velocity media;
• The requirements for the front and rear straight pipe sections are low; More about: Flow Meter Straight Length Requirements Guide;
• The pointer indicates instantaneous flow, and the double-row LCD displays instantaneous flow and cumulative total (optional);
• All-metal structure, suitable for high temperature, high pressure and highly corrosive media;
• Can be used in flammable and explosive hazardous locations;
• With data backup and power-off protection functions (LCD display type);
• Reliable work, low maintenance and long life;
• Wider range ratio 10:1;
• Multi-parameter calibration, keyboard setting alarm (with alarm type);
• Optional external power supply or built-in 3.6V lithium battery power supply;

More Gas Flow Measurement Soluitons

• What Is a Thermal Mass Flow Meter?
• What is an Ammonia Flow Meter and How to Choose?
• Air Flow Measurement Instruments for Industrial Harsh Conditions
• Industrial Gas Measurement with Digital Gas Mass Flow Meters
• High Pressure Flow Meters for Liquids-Steam-Gas
• Measuring Steam Flow and Steam Flow Meters
• Digital Flow Meter for Argon Gas
• Explore Oil and Gas Flow Meters
• What is a Venturi Tube?
• Gas Rotameter Tips
• Bidirectional Flow Measurement
• Beginner’s Guide: Variable Area flow meter
• Air mass flow meter VS Controller

Helium is very inert and does not easily react chemically with other substances. It can be widely used in various industries. Additionally, helium has low density, low boiling point, and high thermal conductivity properties, making it a very valuable gas.

In applications in the welding and metallurgical industries, helium can be used as a welding shielding gas;
In applications in cryogenic engineering, helium gas is usually used as the working medium of closed cycle cryogenic refrigerators.
Helium also has many special industrial applications.

We, Sino-Inst, are a professional flow meter manufacturer. In addition to helium flow meters, we also produce steam flow meters, oxygen flow meters, hydrogen flow meters, argon flow meters, and various other liquid and solid powder flow meters.

If you need to measure helium flow or purchase a helium flow meter, you can contact our engineers for technical support at any time!

Request a Quote