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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

Fujian Dehua Metrology and Testing Institute

Project Name: Standard Device for Gas Flow at Normal Pressure and Sonic Nozzle

The main technical parameters: Device expansion uncertainty: 0.3% (Sonic nozzle uncertainty 0.2%) (K = 2)

Test pipeline range: DN25 ~ DN100

Flow range: air 1-2000m3 / h

Project description: This project is a set of standard equipment for gas flow of sonic nozzle method according to the needs of Dehua Metrology and Testing Institute. The entire structure adopts
Turntable structure design. The air source is a vacuum pump, and the standard device is a sonic nozzle. The atmosphere passes through the front and rear straight pipe sections, the meter clamp device, the stagnant container,
Sonic nozzles and manifolds enter the vacuum pump. And using a microcomputer automatic verification system, can carry out the verification of various gas flow meters.