0.1% Accuracy Mass Flow Meter LPG Flow Meter custody transfer mass flow meter

The custody transfer mass flow meter can take measurement of high viscosity fluids, such as crude oil, heavy oil, residual oil and other liquids with higher viscosity. Coriolis mass flowmeters are used with good reliability and accurate measurement result.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature
Output and Communication: Pulse output+4-20mA+RS485 (standard)
Explosion-proof level: Exd(ia)IICT6Gb

The QTCMF Bitumen coriolis mass flow meters are used in different fields to meet the requirements of ingredient blending, filling & dosing and custody transfer etc. Petroleum, such as crude oil, coal slurry, lubricant and other fuels. And High viscosity materials, such as asphalt, heavy oil and grease; Coriolis mass flowmeters are used with good reliability and accurate measurement result.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Q&T Coriolis Mass Flow Meter is widely used flow meter in process industry for its versatility and ability to directly give mass flow rate. Coriolis flow meter uses the principle of Coriolis Effect. When a tube is vibrating laterally and fluid is passed through it, it starts to distort due to weight and flow of fluid.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

The Coriolis Mass Flow Meter has high accuracy,the standard type is 0.2%; The mass flow meter with high quality material all stainless steel 316L; The Coriolis Mass Flow Meter display the mass flow; volume flow;density; and temperature.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67

The Coriolis LPG Flow Meter has high accuracy,the standard type is 0.2%; The coriolis mass oil flow meter with high quality material all stainless steel 316L; The Coriolis Mass Flow Meter display the mass flow; volume flow; density and temperature.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67

QTCMF Coriolis Mass Flow Meter has wide Temperature Range: -200 degrees~300; Wide pressure range: up to 35Mpa; And multiple outputs: instantaneous mass flow or volume flow, fluid density, fluid temperature and other signals. And our QTCMF coriolis mass flow meter can realize batch control functions.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP72
Instrument display: mass flow, volume flow, density, temperature

Batch control Industrial LPG oil plant mass flow meter do not have internal obstructions witch can be damaged or plugged by slurries or other types of particulate matter in the flow stream. Entrained gas or slugs of gas in the liquid will not damage the flow meter. There are no moving parts witch will wear out require replacement. These design features reduces the need for routine maintenance.

The mass flow meter can be configured to measure flow in either the forward or the reverse direction. In revere flow there will still be a time or phase difference between the flow detector, but the relative difference between the two detector signals will be reversed.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

This Chemical Industry Coriolis mass flow meter is designed according to micro motion and Coriolis principle. It is a leading precision flow and density measurement solution offering the most accurate and repeatable mass measurement for liquids, or slurry. This coriolis type mass flow meter offer the most accurate measurement available for virtually any process fluid, while exhibiting exceptionally low pressure drop.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature
Output and Communication: Pulse output+4-20mA+RS485 (standard)
Explosion-proof level: Exd(ia)IICT6Gb

High accuracy QTCMF 4-20mA output coriolis mass flow meter provide a direct mass flow measurement without the addition of external measurement instruments. While the volumetric flow rate of the fluid will vary with changes in density, the mass flow rate of fluid is independent of density changes.

Coriolis flow meters have outstanding accuracy. The base accuracy is commonly on the order of 0.2%. In addition, the flow meters are linear over their entire flow range.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Food industry Coriolis mass flowmeter is designed according to micro motion and Coriolis principle. It is a leading precision flow and density measurement solution offering the most accurate and repeatable mass measurement for liquids, or slurry. QTCMF meters offer the most accurate measurement available for virtually any process fluid, while exhibiting exceptionally low pressure drop.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature
Output and Communication: Pulse output+4-20mA+RS485 (standard)
Explosion-proof level: Exd(ia)IICT6Gb

Our Reliable 4-20mA output custody transfer mass flow meter can directly take measurement of mass flow with high measurement accuracy.
This coriolis mass flow meter measure fluid flow rate directly, it is significant to the energy measurement and chemical reaction during the producing detection.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Oil transferring automatic dosing coriolis mass flow meter can take measurement of high viscosity fluids, such as crude oil, heavy oil, residual oil and other liquids with higher viscosity. Coriolis mass flowmeters are used with good reliability and accurate measurement result.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature
Output and Communication: Pulse output+4-20mA+RS485 (standard)
Explosion-proof level: Exd(ia)IICT6Gb

The QTCMF coriolis mass flow meter can take measurement of high viscosity fluids, such as crude oil, heavy oil, residual oil and other liquids with higher viscosity. Coriolis mass flowmeters are used with good reliability and accurate measurement result.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature
Output and Communication: Pulse output+4-20mA+RS485 (standard)
Explosion-proof level: Exd(ia)IICT6Gb

Q&T RS485 Mass Flow Meter Coriolis Flow Meter is widely used in process industry for its versatility and ability to directly give mass flow rate. Coriolis flow meter uses the principle of Coriolis Effect. When a tube is vibrating laterally and fluid is passed through it, it starts to distort due to weight and flow of fluid.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Coriolis flow meter is capable of measuring a wide range of fluids that are often incompatible with other flow measurement devices. The operation of the flow meter is independent of Reynolds number; therefore, extremely vicious fluids can also be measured.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

This coriolis mass flow meter has low Installation Requirement, no flow conditioning or straight pipe runs required. No maintenance. The change in fluid viscosity has no significant effect on the measured value. Nominal pressure of this mass flow meter is 4.0MPa(standard), high pressure can be customized, and it has high Explosion-proof Grade: Ex d(ia)II CT6 Gb.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

This 0.1% Accuracy Mass Flow Meter LPG Flow Meter is one of the most versatile flow meters available. One of the most important features of Coriolis effect flow meters is that they can measure mass flow, density, and temperature in the same device.

A Coriolis meter works on Coriolis Effect, hence it is named so. Coriolis meters are considered to be true mass meters since they tend to measure the mass rate of flow directly while other flow meter technologies measure volumetric flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

This coriolis oil flow meter has Various Output,the flow meter with RS485/MODBUS/HART/4~20mA output for you reference; This Coriolis mass flow meter has wide measuring range.
Coriolis flow meter designs are available with allow for use in sanitary applications, and for the measurement of shear sensitive fluids.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

The operation of the Custody Transfer coriolis mass flow meter is independent flow characteristics such as turbulence and profile. Therefore, upstream and downstream straight run requirement and flow conditioning are not necessary. This mass flow meter can also be used in installations that have pulsating flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

A Oil measuring coriolis mass flow meter and density meter is capable of measuring mass flow rate, volumetric flow rate, fluid density and temperature all from one instrument. The operation of the flow meter is independent flow characteristics such as turbulence and profile. Therefore, upstream and downstream straight run requirement and flow conditioning are not necessary. They can also be used in installations that have pulsating flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Q&T Coriolis Mass Flow Meter is widely used flow meter in process industry for its versatility and ability to directly give mass flow rate. Coriolis flow meter uses the principle of Coriolis Effect. When a tube is vibrating laterally and fluid is passed through it, it starts to distort due to weight and flow of fluid.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

The operation of the coriolis mass flow meter is independent flow characteristics such as turbulence and profile. Therefore, upstream and downstream straight run requirement and flow conditioning are not necessary. This mass flow meter can also be used in installations that have pulsating flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

This batch control mass flow meter min diameter is DN2,the max is DN200; This coriolis mass flow meter has Wide Temperature Range: -200 degrees~300 and Wide pressure range: up to 35Mpa

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP69
Instrument display: mass flow, volume flow, density, temperature

This high quality coriolis mass flow meter has the features as below: 1. Reliability£º High accuracy ¡À 0.2% of rate ¡À zero stability for liquids, 2. Easy Installation£º No mechanical wear and minimize installation issues. 3. Wide Application£º Ability to measure undefined or variable mixtures. 4. The change in fluid density has little effect on the measured value.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP71
Instrument display: mass flow, volume flow, density, temperature

A Coriolis flow meter is capable of measuring mass flow rate, volumetric flow rate, fluid density and temperature all from one instrument. The operation of the flow meter is independent flow characteristics such as turbulence and profile. Therefore, upstream and downstream straight run requirement and flow conditioning are not necessary. They can also be used in installations that have pulsating flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

The custody transfer Coriolis flow meter is capable of measuring mass flow rate, volumetric flow rate, fluid density and temperature all from one instrument. The operation of the coriolis mass flow meter is independent of flow characteristics such as turbulence and profile. Therefore, upstream and downstream straight run requirement and flow conditioning are not necessary. They can also be used in installations that have pulsating flow.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Our QTCMF mass flow meter can direct take measurement of mass flow with high measurement accuracy.
This coriolis mass flow meter measure fluid flow rate directly, it is significant to the energy measurement and chemical reaction during the producing detection.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

Liquid LPG Flowmeter Coriolis Mass Oil Flowmeter has high accuracy,the standard type is 0.2%, also can be 0.1%; The coriolis mass flow meter all stainless steel 316L; The Coriolis Mass Flow Meter display the mass flow; volume flow;density; and temperature.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67

Q&T coriolis mass flow meter with Batch Control is widely used flow meter in process industry for its versatility and ability to directly give mass flow rate. Coriolis flow meter uses the principle of Coriolis Effect. When a tube is vibrating laterally and fluid is passed through it, it starts to distort due to weight and flow of fluid.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: ¡®-50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature

The QTCMF coriolis mass flow meters are used in different fields to meet the requirements of ingredient blending, filling & dosing and custody transfer etc. Petroleum, such as crude oil, coal slurry, lubricant and other fuels. And High viscosity materials, such as asphalt, heavy oil and grease; Coriolis mass flowmeters are used with good reliability and accurate measurement result.

Specifications:
Accuracy: 0.20%£¬0.10%
Medium Temperature: -50…200¡æ
Nominal pressure: 0¡­4.0MPa
Material : Measuring tube SS316L; Housing: SS304
Process Connection: Flange, Tri-clamp Connection, Thread
Power supply: 24V DC¡À5% or 220V AC ¡À 10% 50Hz
Working condition: Ambient temperature: – 20~60¡æ
Relative humidity: ¡Ü95%
Protection Grade: IP67
Instrument display: mass flow, volume flow, density, temperature