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Sonic Nozzle Industrial Gas Meter Test Bench DN25-DM300



Sonic nozzle type gas flow standard device

Product Description

This test bench can test Industrial gas meter DN25-DN300mm, the flow range is up to 1000m3/h, 2000m3/h, 3000m3/h, 4000m3/h, 6500m3/h or customize. It is an ideal testing equipment for gas meter factory or laboratory.


This test bench adopts sonic nozzle as standard reference and minus pressure principle, following International standards ISO9300, it consists of calculating unit, testing table, dynamical system, sampling and controlling system and administrative software, etc. The testing result can be saved and printed out.


1. Accuracy : ≤0.25%,  ≤0.3%,  ≤0.5%
2. Tested meters: 1pc
3. Testing media: clear air.
4. Tested meter: DN25-DN300 rotary gas meter, vortex gas meter, turbine gas meter and other gas flow meter.
5. Manometer accuracy: ≤0.1%;
thermometer accuracy: ≤0.5%;
hygrometer: ≤3.5%
6. Material: flow tube, flange and valve are stainless steel, others are carbon steel.
7. Working condition:
environment temperature: 0-38℃
relevant humidity: 5%~98%
atmospheric pressure: 86kPa~106kPa

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