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What is the minimum diameter specification of the water flow meter calibration device? The minimum diameter specification of the water flow meter calibration device varies depending on the device type and manufacturer, and the common minimum diameters are DN10 and DN15.
1. The minimum aperture of typical publicly available devices 1 The standard version water flow standard device of Aisite Instrument (Shanghai) Co., Ltd. can test instrument diameters ranging from DN10 to DN800, with a minimum calibration diameter of DN10
2. The flow calibration device of Mike Sensor Co., Ltd. can meet the production coarse chain calibration of DN15-DN500 caliber flow meters; The volumetric rock jet water flow verification device is suitable for the verification of small and medium-sized equipment ranging from DN15 to DN200, with a minimum calibration diameter of DN15 for both.
2. What are the optional size specifications for methanol flow meters?
The mainstream size specifications for methanol flow meters cover DN15~DN2000, which need to be determined based on the type of flow meter, operating flow rate, and pipeline parameters.
.1. General size selection interval 1 Small flow scenarios: DN15~DN50, suitable for small diameter conveying scenarios such as sampling pipelines and small filling lines in workshops; 2. Medium flow scenario: DN65~DN300, which is the mainstream fitting size for the methanol main pipeline in the factory area; 3. High flow scenarios: DN350~DN2000, suitable for ultra large caliber working conditions such as dock unloading and long-distance methanol pipelines.
2. Size adaptation limitations for different types of flow meters: (1) Vortex flow meters: suitable for DN15~
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III. Selection and Use Constraints 1 Flow range constraint: It is necessary to ensure that the actual working flow rate is within the optimal range ratio range of the selected flow meter (usually 10%~100% of the rated flow rate), in order to avoid accuracy failure at low flow rates; 2. Medium adaptation constraints: Anhydrous methanol should avoid electromagnetic flow meters and use instruments such as vortex street and Coriolis mass flow meters that are adapted to non-conductive media. The corresponding size range should be adjusted according to the type of flow meter; 3. Safety installation constraints: Methanol is a flammable chemical medium, and the installation of flow meters should be completed by personnel with chemical pipeline operation qualifications to avoid safety risks caused by medium leakage.