Abstract: the selection of rotameter scale point information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Rotameter is through the measurement of the moving parts are in dc pipe ( Location) To calculate flow device, has the measurement precision, stable performance, flexible use, high reliability, etc. Users should be how to use the rotor flow meter? Below small make up with you. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the selection of rotameter scale points article details. Rotameter is through the measurement of the moving parts are in dc pipe ( Location) To calculate flow device, has the measurement precision, stable performance, flexible use, high reliability, etc. Users should be how to use the rotor flow meter? Below small make up to introduce specific rotor flowmeter selection of main points, hope you can help to you. 1, the rotor flow meter must be installed vertically on the no vibration of the pipeline. Fluid flows through the flowmeter from bottom to top, and vertical degree is better than 2 & deg; When mounted horizontally horizontal Angle is better than that of 2, & deg; ; ( Now there are horizontal rotor flowmeter) 2, for the convenience of maintenance and replacement meter, measuring pipeline cleaning, piped in process of metal tube float flowmeter should install bypass pipe and the bypass valve; 3, at the entrance of rotameter should have the straight pipe length more than 5 times the pipe diameter, exit straight pipe should be 250 mm; 4, if the medium containing ferromagnetic material, magnetic filters should be installed; If the medium containing solid impurities, consideration should be given to the valve and straight pipe between the filter; 5, when used for gas measurement, should guarantee the pipeline pressure is not less than five times the pressure losses of flow meter to float a stable work; 6, in order to avoid deformation caused by pipe flowmeter, process pipeline flange must be flange with meter coaxial and parallel to each other, pipe supports to avoid the pipeline vibration and the axial load of flowmeter, the measuring system control valve should be installed downstream of the flow meter: 7, measuring gas, if direct discharge atmospheric gas flowmeter in exports, the valve should be installed in the export of instrument, otherwise it will be in the float produces pressure drop and cause data distortion. 8, the installation of PTFE lining instrument, the asymmetry of flange nut don't twist too tight, lest cause PTEF lining deformation; 9, with a liquid crystal display instrument, avoid direct sunlight displays, so as not to reduce the service life of the liquid crystal; Instrument with lithium batteries, avoid direct sunlight, high temperature environment ( ≥ 65℃) So as not to reduce the capacity and life of lithium-ion batteries. Selection of note 1. For far transmission type selection of metal tube float rotor flowmeter, want to choose suitable for use explosion-proof type requirement of rotor flowmeter; When installation should also pay attention to the instrument after electrify shell tighten seal and connection port, has reached the requirement of explosion protection, protection, prevent erosion. 2. For high temperature measured medium (> 120℃) Or low places, usually to the rotameter sensor part of the insulation or heat insulation measures, in order to ensure the signal converter - - - - - - - - - - - - - - - - - - - - - - - - - - Temperature indicator working environment, should choose high temperature indicator. 3. Which should be taken for some insulation or cooling of the measured medium, to choose model rotor flowmeter. Standard of metal tube float rotameter heating or cooling interface using DIN2501 DN15 PN1. 6 flange connection, if you need other flanged or threaded connections, please specify when ordering. 4. For rotameter entrance medium pressure instability, especially for gas measurement, in order to ensure the precision and service life, should choose damping structure. 5. For the requirements of the medium pressure level is higher, more than the standard pressure level, when selection please select high pressure type structure, high pressure type the HG20595 - 97 RF with neck butt weld steel pipe flanges. As with other standards, please specify when ordering. 6. Rotameter installed to ensure the measuring tube verticality is better than 5%, and should be equipped with bypass, easy to maintain and clean and does not affect production. 7. Installation position of the rotor flowmeter should guarantee entry & ge; 5 dn straight pipe, export & not le; 250 mm straight pipe; Containing ferromagnetic materials, such as medium shall be installed in front of the rotameter magnetic filter. 8. Measurement and control system of the control valve, should be installed downstream of the rotor flow meter. When used for gas measurement, should guarantee the working pressure not less than 5 times of pressure loss of the rotameter, so that the rotor flowmeter stable work. 9. Before installation of metal tube float rotameter, pipe welding slag purging clean; When installation should take out the rotor flow meter in the locking device; After installation, slowly open control valve, avoid shock damage rotor flowmeter. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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