Orifice Gas Flow Meter

Orifice Gas Flow Meter with online density compensation

Manas Microsystem, a leading flowmeter manufacturer, supplier, and exporter in India, Southeast Asia (SEA), and the Middle East & Africa (MEA), presents the Orifice Gas Flow Meter. Engineered for precision and reliability, our orifice gas flow meters provide accurate measurements in a variety of industrial applications.

These are easy to install, with no wiring connections required to be done during the installation.Calibration of RTD, DPT, and PT is easy and inexpensive. Hence many users still prefer this flow meter. Stringent testing of these meters at our factory ensures reliability and precision.


  • Size: 1 inch to 8 inch
  • Type of flow element: Differential flow element
  • Accuracy: ±2.5% of actual reading
  • Typical turndown: 10:3
  • Density compensation: Online monitoring and compensation of density
    Communication protocol: MODBUS, RTU
  • Communication port: RS485, RS232 (optional)


  • Chemical and Petrochemicals
  • Fertilizers
  • Pharmaceutical
  • Power Generation
  • Steel/ Aluminum
  • Food & Beverage
  • Sugar Factories/Distilleries
  • Boiler Industry
  • Manufacturing
  • Textiles


  • No moving parts, thus giving long life and more reliability.
  • Online density compensation is possible, making it easy to operate.
  • Various sizes of orifice assemblies are available with accurate design calculations, making it one of the most trusted gas flow meters
  • Online display of compensated mass flow rate, density, temperature, and output of DP transmitter makes it, make it very informative for the user
  • Diagnostic checks like DPT, PT, or Temperature sensor disconnection can give early information about the problems
  • Customization: Tailored gas flow meters to match your specific needs
  • The flow meter assembly is engineered to suit the user’s requirement, making it user-friendly and reliable

Product Details

Brand manas microsystems
Mounting Wall/Panel
Max depth 185mm
Accuracy ±0.25% of Full Scale
Data logging Approx readings: 3000 for normal logging &Approx 5500 readings for extended logging
Power supply 85 to 265V AC,50Hz, single phase
Pressure range 1 to 50 kg/cm2 (g) or Bar (g) max.-programmable
Flow type Compensated/Uncompensated programmable
Enclosure Al Diecast/ABS Plastic
Comm. Port RS485 std., RS232 (Optional)
Density Compensation Online monitoring and compensation of density
Dimensions WM Type 310 (L) x 160 (W) x 105 (D)
Dimension PM Type Bezel-144mm (H) x 72mm (W) cutout-138mm (H) x 68mm (W)


An orifice flow meter is a type of flow measurement device used to quantify the rate of fluid flow within a pipeline by measuring the differential pressure created across a constriction (orifice plate) in the flow path.

The primary components include the orifice plate (with a precisely measured hole), flanges for installation, upstream and downstream pipe sections, pressure taps, and a differential pressure transmitter or gauge.

Lets Talk About Our Products With Our Professionals

Manas Micro
Ask the expert