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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

Jilin Metrology and Testing Research Institute

Project Name: Sonic Nozzle Gas Flow Standard Device

The main technical parameters: Device expansion uncertainty: 0.35%

Nozzle uncertainty: 0.2%

Flow measurement range: 1-5100Nm3 / h

Calibration caliber: DN20 ~ DN300

Project description: This project is a set of sonic nozzle method gas flow standard device constructed by Jilin Metrology and Testing Research Institute according to needs. Complete knot
The structure adopts a tiled structure design. Compatible pipelines are simple and convenient with a push-pull tube change. The air source uses 2BEA type vacuum pump, the standard device is
Sonic nozzle. The air enters the vacuum pump through the front and rear straight pipe sections, the meter clamping device, the stagnation container, the sonic nozzle, and the manifold. Microcomputer automatic detection
Calibration control system to achieve the verification and calibration of critical flow sonic nozzle junction gas.