Metal tube float flowmeterAdopting the principle of variable area measurement, it is suitable for measuring liquids and gases. All metal structure, including indicator type, electric remote transmission type, corrosion-resistant type, high-voltage type, jacket type, and explosion-proof type. It has standard analog signal output and on-site indication of 0-10mA and 4-20mA. Accumulation, digital communication, on-site modification of measurement parameters, different power supply functions, with magnetic filters and special specifications, widely used in petroleum, chemical, power generation, pharmaceuticals, food, water treatment, etc. In the process of flow measurement under complex, harsh environmental conditions and various media conditions.
Metal tube float flowmeter is a commonly used variable area flow measurement instrument in industrial automation process control. It has the characteristics of small size, large detection range, and easy use. It can be used to measure the flow rate of liquids, gases, and vapors, especially suitable for measuring the flow rate of low velocity and low flow media.
In order to ensure the normal operation and measurement accuracy of the metal tube float flowmeter, the following points should be noted when installing the flowmeter:
If the medium contains ferromagnetic substances, a magnetic filter should be installed; If the medium contains solid impurities, it should be considered to install a filter between the valve and the straight pipe section.
In order to facilitate maintenance and replacement of flow meters, as well as cleaning of measuring pipelines, metal tube float flow meters installed on process pipelines should be equipped with bypass pipelines and bypass valves.
In order to avoid deformation of the flow meter caused by pipelines, the flange of the process pipeline must be coaxial and parallel to the flange of the flow meter. The pipeline support should be used to avoid pipeline vibration and reduce the axial load of the flow meter. The control valve in the measurement system should be installed downstream of the flow meter.
When measuring gas, if the gas is directly discharged into the atmosphere at the outlet of the flowmeter, a valve should be installed at the outlet of the instrument, otherwise a pressure drop will occur at the float, causing data distortion.
When installing instruments with PTFE lining, do not tighten the flange nuts asymmetrically at will to avoid deformation of the PTEF lining.