OEM thermal gas mass flow meter

Thermal gas mass flowmeter have an impressively high accuracy, short response time and a very wide flow range with virtually no loss of accuracy even at the lowest flow rates.It is designed on the basis of thermal dispersion, and adopts method of constant differential temperature to measuring gas flow. It has advantages of small size, easy installation, high reliability and high accuracy, etc.
Media temperature:-40~+220¡æ
Size£º
Insertion type:DN32~DN4000
Flange type:DN10~DN300
Tri-clamp type :DN10~DN100
Thread type:DN10~DN100

Thermal flow meter measure gas mass flow in various processes and offer distinct advantages, such as repeatability, low maintenance, and operating over a wide flow range. Here we discuss the meter¡¯s fundamentals, the working principle of thermal mass flow measurement, and the two approaches to measuring heat dissipation.
In-line type accuracy:¡À1.0%
Insertion type accuracy::¡À1.5%
Power supply:DC24V and AC220V
Output:4-20mA,Pulse,RS485

Thermal gas mass flowmeter’s medium temperature range of meter is -40¡æ¡«220¡æ.
When the gas is very humid or saturated with water (e. g. Bio Gas), the piping and flowmeter body should be insulated to prevent water droplets condensing on the measuring sensor.
Insertion type:DN32~DN4000
Flange type:DN10~DN300
Tri-clamp type :DN10~DN100
Thread type:DN10~DN100

Thermal gas mass flow meter be adopted LCD converter and its most commonly used to measure the mass flow of clean gases, such as air, nitrogen, hydrogen, helium, ammonia, argon, and other industrial gases.
According to the connect,thermal gas mass flow meter have flange type,thread type,tri-clamp type,wafer type,inertion type etc.
With RS485 or HART communication
Power supply:24VDC ,220VAC
Accuracy:¡À1.0%~¡À1.5%

Thermal mass flow meter is precision instruments that can directly measure mass flow,such as industrial gases, compressed gas, and other gases.
Pulse output thermal mass flowmeters are suitable for all industrial and test rig applications that demand quick and precise gas measurement.
Pressure:
Insertion type¡Ü1.6Mpa
Flange type ¡Ü4.0Mpa
Accuracy:
In-line type accuracy:¡À1.0%
Insertion type accuracy::¡À1.5%
Power supply:DC24V and AC220V

Thernal gas flow meter is one kind smart gas flow instrument, It can easily and accurately detect the mass flowrate of gas,specical for low flowrate.
They have an impressively high accuracy, short response time and a very wide flow range with virtually no loss of accuracy even at the lowest flow rates.
Accuracy:¡À1.0 %
4-20mA is Optical isolation
Body material:Standard carbon steel,SS304 and SS316 are optional

Thermal mass flow meter is precision instruments that can directly measure mass flow,such as industrial gases, compressed gas, and other gases.
DC4-20mA four-wire output
Mass flow unit
Dual power:24VDC,220VAC
Min.Flow veloctiy:0.1Nm/s
Output:4-20mA

Q&T thermal gas mass flow meter with DC4-20mA four-wire output,which is more convenient for remote reception.Support MODBUS RTU RS485 protocol,coordinating the receiving system to collect more data ans modify system
Velocity:0.1~100Nm/s
Media temperature:-40~+220¡æ
Size£º
Insertion type:DN32~DN4000
Flange type:DN10~DN300
Tri-clamp type :DN10~DN100
Thread type:DN10~DN100

Thermal gas flowmeter is mainly used for measuring gas with low flow and the range could reach 1:100,which is btter than gas flowmeter on market and low flow could be measured,the min.flow velocity can reach 0.1Nm/s and Max. velocity reach 100Nm/s
Volume flow /Mass flow

Pulse output thermal gas mass flowmeters is one kind of instrument that measures the gas mass flowrate.
Thermal gas flow meter can be divided into inline type and isert type according to the instructure.
With RS485 or HART communication

Thermal mass flow meters are used frequently in monitoring or controlling mass-related processes and measuring range can reach 1:100
So thermal mass flow meters are most often used for the regulation of low gas flowrate.
Media:All gas except acetylene and humid gas
Measure range:1:100
Sesnsor working temperature:-20~220℃
Transmitter working temperature:-20~45℃
Output:4-20mA

Thernal gas flow meter is one kind smart gas flow instrument, It can easily and accurately detect the mass flowrate of gas,specical for low flowrate.
Such as :Air, Nitrogen, Hydrogen, Oxygen, Chlorine, Natural gas, Flue gas and Other gases (except acetylene gas)
Thermal gas mass flow emter be widely used in the process control and gas flow measurement of petroleum, chemical industry, metallurgy, electric power, water treatment, papermaking, food, medicine, cement, textile and various production and scientific research institutions.

Insertion type thermal flow meter which be used to measure the air flow velocity.
Air velocity thermal flow meter with widely flow range and flow ratio can reach 1:100.
Measuring tube dia. is ¦Õ12mm and ball valve is 1/2″ NPT
24VDC power supply its more safety for gas.

Gas mass flow meter thermal flowmeters can measure many kinds of dry gas,except acetylena and humid gas.
According to the connection,can produce Flange type,Thread type,Wafer type,Tri-clamp type,Insertion type.
Thermal gas mass flow meter can with DC 4-20mA four-wire output,which is more convenient for remote reception

SS304 is the standard material for thermal gas mass flow meter and thermal flow meter is digital display and can
with RS485 or HART communication
Sesnsor working temperature:-20~220¡æ
Transmitter working temperature:-20~45¡æ
Thermal gas flow meter can measure many kinds of gases except acetylene and humid gas and m,easure range can reach 1:100,so it usually be used for leak detection

Insertion thermal gas mass flow meter with anti flush-out design for high pressure,more safety
When absolute pressure of measuring medium is higher than 5 times standard atmospheric pressure, or higher than the pressure of possible danger, should shut down or do reducing pressure to reach a safety pressure, and then do hot-tapped operation. If there are no conditions to do hot-tapped operation, should shut down to avoid dangers.

Thermal gas mas flow meters are measuring the mass flow or volume flow of gas,flow range can do 0.5Nm/s¡«100Nm/s. So this meter also can be used for gas leak detection.
Thermal flow sensor temp is always 30¡æ higher than the medium temperature (environment temperature), and the meter adopts method of constant differential temperature, therefore the meter don¡¯t need temperature and pressure compensation in principle.

For the insertion type instrument, on the premise that both the measuring media and field environment are applicable for online dismantlement with non-stop operation, it is viable to have maintenance operation with non-stop operation relying on its special structure
Media:All gas except acetylene and humid gas
Measure range:1:100
Sesnsor working temperature:-20~220℃
Transmitter working temperature:-20~45℃
Output:4-20mA

According the installation,thermal gas mass flow meter is divide into insertion type and inline type.
Whatever insertion or inline gas mass flow meter,they all have no moving parts and measure the mass of the fluid directly.This make thermal gas mass flow meter measure the standardized volumetric flow rates and totals without the need for temperature or pressure compensation
Velocity:0.1~100Nm/s
Output:4-20mA,Pulse,RS485
Body material:SS304
Alarm output:1-2 relay
Pressure up to 4.0Mpa

Thermal gas mass flow meter mainly measure various of gases ,special dry gases,but thermal gas mass flow meter can’t measure acetylene.
In many applications, the thermal properties of the fluid can be dependent upon fluid composition. In such applications, varying composition of the fluid during actual operation can affect the thermal flow measurement. Therefore, it is important for the thermal flow meter supplier to know the composition of the fluid so that the proper calibration factor can be used to determine the flow rate accurately
Widly flow range ratio:1:100
Display:4 line digital
With RS485 or HART communication
Power supply:24VDC ,220VAC
Accuracy:¡À1.0%~¡À1.5%

As the flow meter final manufacturer,OEM and ODM are very normal ,such as Color,Material,Display,Output,Process Connect,Function etc.
Q&T brand thermal mass flowmeters are suitable for all industrial and test rig applications that demand quick and precise gas measurement. The flowmeters directly indicate the mass flow or normalized volume flow of gases without any additional pressure and temperature compensation. They have an impressively high accuracy, short response time and a very wide flow range with virtually no loss of accuracy even at the lowest flow rates.
DC4-20mA four-wire output
Flow unit:Nm3
SS304 rod
All gas except acetylene and humid gas
Measure range:1:100
Sesnsor working temperature:-20~220¡æ
Transmitter working temperature:-20~45¡æ