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Phone: 0415-6279972 / 6279973
Fax: 0415-6279975
Email: ddbest@qianhualy.com
Address: Baoquan Road, Zhenxing District, Dandong City, Liaoning Province
No. 20 (Lingang Industrial Park)
Postcode: 118009

Xingtai Metrology Testing Institute

Project Name: Sonic Nozzle Gas Flow Standard Device

The main technical parameters: Device expansion uncertainty: 0.35% (K = 2)

Nozzle uncertainty: 0.2%

Flow measurement range: 1-4100Nm3 / h

Calibration caliber: DN15 ~ DN200

Project description: This project is a set of sonic nozzle method gas flow standard device constructed by Xingtai Metrological Verification and Testing Institute according to needs. Complete knot
The structure adopts a tiled structure design. Compatible pipelines use push-pull tube replacement, which is simple and convenient. The air passes through the front and rear straight pipe sections, the meter clamp device,
The stagnation container, the sonic nozzle and the manifold enter the vacuum pump. The microcomputer automatic verification control system is adopted.
The instrument completes the automatic verification of the flow meter, and achieves the verification and calibration of critical-flow sonic nozzle junction gas.