Orifice Gas Flow Meter

Orifice Gas Flow Meter by Manas Microsystem

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.


  • 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
  • No wiring connections are required during the installation
  • 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 are available
  • Calibration of RTD, DPT, and PT is easy and inexpensive
  • Customization: Tailored gas flow meters to match your specific needs
  • Quality Assurance: Stringent testing ensures reliability and precision.
  • Expert Support: Knowledgeable guidance and post-sales support
  • Competitive Pricing: Affordable solutions without compromising quality
  • System is engineered to suit the user’s requirement

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.

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