How to calculate the coverage range of ball flowmeter | floating ball flowmeter | Wanning Ultrasonic Flow Meter Manufacturer

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1. How to check the flow rate of a pipeline type floating ball flowmeter? Is it to check whether the floating ball is offline or online?

The reading of the virtual sub flowmeter in the floating section is the position where the maximum cross-sectional area of the float is read.

. As shown in the diagram:

2. What is the reasonable range for installing and posting floating ball flow meters?

Floating ball flow meters are usually divided into two categories: metal tube rotor flow meters and floating ball level meters. The reasonable installation range and requirements of the two are significantly different. The following summarizes the core installation specifications. 1. Reasonable installation range for metal tube rotor flowmeter (commonly known as float flowmeter) • Installation angle: It must be installed vertically, and the angle between the centerline and the plumb line should not exceed 2 ° -5 °. The fluid needs to pass through the flowmeter from bottom to top, and inclined installation can cause friction between the float and the inner wall of the conical tube, resulting in low readings, jamming, and even damage to the instrument. • Straight pipe section configuration: To ensure stable flow field, the length of the upstream straight pipe section should be ≥ 5 times the instrument diameter (5D), and the length of the downstream straight pipe section should be ≥ 3 times the instrument diameter (3D). It is recommended to use a bypass pipeline (three valve group mode) for easy maintenance in the future. • Requirements for auxiliary pipelines: upstream shut-off valves should be installed, and downstream regulating valves are recommended to be installed at a distance of 5-10 times the diamet

er of the exposed outlet; If the medium contains solid particles or magnetic substances, a corresponding filter must be installed upstream of the flowmeter (magnetic media requires a magnetic filter). Stress support: The pipeline needs to be equipped with independent supports to avoid additional tensile, torsional, or bending stresses on the flowmeter flange; Large caliber or heavy flow meters require the installation of specialized instrument brackets. • Medium adaptation details: When measuring gases, it is necessary to avoid the accumulation of liquid in the pipeline, and if necessary, install an exhaust valve at the highest point of the pipeline; When measuring liquids, it is necessary to exhaust the bubbles inside the pipeline, and the angle flowmeter should exhaust the air inside the sleeve caused by the displacement of the outer float; High temperature media require insulation or heat dissipation treatment, and instruments that meet the corresponding explosion-proof level should be selected and installed according to the specifications for flammable and explosive scenarios. • Space reservation: Adequate operating space should be left around the installation location for easy reading, disassembly of flanges, and daily maintenance; There should be no obstacles within the range of float activity, and anti-collision plates should be installed in situations with significant logistics impact. Installation angle: The instrument must be installed vertically to ensure that the float can move freely up and down inside the main guide rod. • Medium and environmental requirements: The specific gravity of the measured liquid should be greater than that of the float, and there should be no ferromagnetic impurities around the med

How to calculate the coverage range of ball flowmeter | floating ball flowmeter

1. How to check the flow rate of a pipeline type floating ball flowmeter? Is it to check whether the floating ball is offline or online?

2. What is the reasonable range for installing and posting floating ball flow meters?

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