Product Overview:

The averaging tube is also known as the Annubar or Flute Tube. The averaging tube is developed based on the principle of pitot tube speed measurement. Due to its low pressure loss, low manufacturing cost, and easy installation and maintenance, it is widely used in various countries.  

Working Principle:

The measurement principle of the averaging tube is to divide the entire circular cross-section into multiple circular rings with equal unit areas (with a circle in the middle). The monitoring rod of the averaging tube is a hollow metal tube.

Scope of application:

1. Nominal diameter: 25mm ≤ DN ≤ 6000mm

2. Nominal pressure: PN ≤ 25MPa

3. Medium temperature: t ≤ 650 ℃

4. Accuracy level: Level 1, Level 1.5, Level 2.5

Structural form:

The averaging tube is composed of a monitoring rod, a pressure tapping port, and a guide rod. It crosses the interior of the pipeline perpendicular to the pipe axis. There are multiple total pressure monitoring holes on the upstream surface of the monitoring rod, which are respectively led out by the total pressure guide tube and the static pressure guide tube. Based on the differential pressure value between the total pressure and the static pressure, the flow rate through the pipeline is calculated.

Scope of application:

1. Nominal diameter: 25mm ≤ DN ≤ 6000mm

2. Nominal pressure: PN ≤ 25MPa

3. Medium temperature: t ≤ 650 ℃

4. Accuracy level: Level 1, Level 1.5, Level 2.5

Structural form:

The averaging tube is composed of a monitoring rod, a pressure tapping port, and a guide rod. It crosses the interior of the pipeline perpendicular to the pipe axis. There are multiple total pressure monitoring holes on the upstream surface of the monitoring rod, which are respectively led out by the total pressure guide tube and the static pressure guide tube. Based on the differential pressure value between the total pressure and the static pressure, the flow rate through the pipeline is calculated.

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