Advantages of Different Kinds of Flow Meters - 1 views
started by kbojezhang44 on 18 Mar 22
started by kbojezhang44 on 18 Mar 22
started by kbojezhang44 on 18 Mar 22
started by kbojezhang44 on 18 Mar 22
Advantages of Electromagnetic Flow meters:
Unobstructed flow passage without projecting parts
No moving parts
No additional pressure drop
Essentially flow profile insensitive, only short inlet and outlet sections required
Unaffected by changes in temperature, density, viscosity, concentration and electrical conductivity
Favorable choice of materials for chemically aggressive or abrasive measuring media
Unaffected by contamination and deposits
Especially suitable for hydraulic solids transport
Linear relationship between flow rate and measured variable
Operates in both flow directions (forward and reverse)
Measuring range setting can be optimized
Low maintenance, but still easy to maintain
Advantages of Ultrasonic Flow meters:
Unobstructed flow passage
No moving parts
No additional pressure drop
Favorable choice of materials for chemically aggressive liquids
Linear relationship between flow rate and measured variable
Low maintenance
Operates in both flow directions (forward and reverse)
Transit time meters unaffected by temperature, density and concentration
Later installation in existing pipe possible with individual elements, but onsite calibration required
Advantages of Turbine Flow Meters:
No external power supply for Rotating vane and Woltman meters
Turbine flow meters suitable for cryogenic liquids
Turbine flow meters usable at extreme temperatures and pressures
No moving parts
Rugged construction
Suitable for liquids, gases and steam
Easily sterilized
Unaffected by pressure, temperature and density changes
Linear relationship between flow rate and measured value
Advantages of Variable Area Flow meters:
Inexpensive
No external power supply required for local indication
Suitable for liquids, gases and steam
No inlet and outlet sections required
Simple meter design, therefore easy to install and maintain
Indication also with opaque liquids
Metal cone meter with transmitter
Metal cone meter can be sterilized, CIP tested
Advantages of Coriolis Mass Flow meters:
True mass flow measurement
Additional temperature and density measurements
Very high accuracy for mass flow measurements
Highly accurate density measurement
Unaffected by pressure, temperature and viscosity
No inlet and outlet sections required
Operates in both flow directions (forward and reverse)
Measuring range settings can be optimized for flow rate and density
Self-draining
Advantages of Thermal Mass Flow meters:
Direct gas mass flow measurement
No pressure and temperature compensation required
Very low pressure drop
High measuring accuracy
Large span
No moving parts
Rugged construction
Short response time
Easily sterilized
Advantages of Differential Pressure Flow meters:
Universally suitable for liquids, gases and steam
Also usable in extreme situations, e.g. viscosity, due to variety of versions
Calculations possible for unusual situations
Suitable for extreme temperatures and pressures
Range changes possible
Low pressure drop for nozzles