Venturi Tube：

also can named classical venturi tube. Its design manufacture and use are conform to the national standard ISO5167 or GB/T2624 rules. it often used calculated in the flow of liquid and gas 

Main charateristic：

♦ Simple structure, fastness, performance stable.

♦ The pressure loss is small

♦ Structure size is large, and installation size is long

No need real flow calibration, precision correct,when need the precision is higher,then it’s proceed to real flow calibration

Technical parameters：

♦ Taking pressure mode: Upstream use the span taking-pressure,downstream use the laryngeal taking-pressure

♦ Nominal pressure: ≤6.3MPa

♦ Caliber: 50~2200mm

♦ Accuracy(indeterminacy): ±1.5%

♦ Range of application: open hole diameter rate β:0.4≤β≤0.7   

 Reynolds number range  ReD : 2x 10³x 10³ ≥ReD≥ 2x 10³x 10²

 efflux coefficient C:C=0.985

We are Kaifeng Qingtianweiye Flow Instrument Co., Ltd,a subsidiary of listed company Henan SunTront Tec Co.,Ltd.Our head office is a listed company since 2011 and its main products is intelligent electricity meters,while Our company mainly engaged in electromagnetic flow meter.

The total area of our company is 15000 square meters,and the building area is 6000 square meters.Our company have five utility model patents,three software copyrights.And we also have production qualification and liquid calibration settings for flow meters from Dn25mm to DN2000mm.We have strong R&D capability.Our company and our head office have large quantity of running water industrial users,and we also have strong marketing capabilities on battery powered electromagnetic flow meter.We are expecting to cooperate with manufacturer who can provide battery powered flow converter,or  through expand cooperation in various

modes.To develop the Chinese market and international market of battery powered flow meter together.To learn from each other and to achieve win-win situation.

We are expecting sincere cooperation.If you have interest,please feel free to contact us at any time.We are looking forward to hearing from you.