Gas Flow Standard Systems

Sonic Nozzle Gas Flow Standard System

Model: MJ2210-01A

MJ2210-01A Sonic Nozzle Gas Flow Standard System. For industrial gas meters and gas flowmeters, configurable with sonic nozzle, master-meter, piston, and PVTt standards. The technical specifications below are translated from Meijie's official product details.

Standards & Compliance

  • ISO 9300
  • JJG 643-2003
  • JJG 620-2008
  • DN15-DN300
  • Flow range: 0.5-6500 m3/h
  • Accuracy: <=0.5% / <=0.3% / <=0.25%
  • Flow stability: <=0.1%
  • JJG620-2008
  • JJG633-2005
  • JJG1037-2008
  • JJG1029-2007
  • JJG1030-2007

Technical Specifications

  • Model: MJ2210-01A
  • 1. Accuracy: ≤0.5%, ≤0.3%, ≤0.25%.
  • 2. Flow range: 0.5-6500m3/h(or specified by the user).
  • 3. Flow stability: ≤0.1%
  • 4. Nominal sizes under test: DN15, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150, DN200, DN250, DN300.
  • 5. Official parameter: .
  • 6. Operating conditions - calibration medium: clean air; Ambient temperature: 0-50℃; Relative humidity: 10%-80%; Atmospheric pressure: 86-106kPa.

Applications

Industrial metrology / Gas flow laboratories / Metrology institutes

FAQ

Which nominal sizes can the MJ2210-01A system cover?

Official product data lists DN15, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150, DN200, DN250, and DN300 gas flowmeter sizes.

What is the flow range of the sonic nozzle gas flow standard system?

The official MJ2210-01A data lists 0.5-6500 m3/h, with project-specific configuration available by user requirement.

What standard instrument and method does it use?

The system uses critical-flow Venturi nozzles as the standard and is configured as a negative-pressure gas flow standard system.