Stainless steel gear flowmeter | How to debug and use gear flowmeters with inconsistent front and rear pipe diameters

『Stainless steel gear flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Manufacturer of pipeline type online density meter

2. How to debug and use gear flow meters with inconsistent front and rear pipe diameters

Gear flow meters with inconsistent front and rear pipe diameters can be calibrated and used normally by matching variable diameter joints. The core is to ensure that the length of the front and rear straight pipe sections meets the standard and the medium flow is stable. 1. Pre preparation: The selection of the variable diameter joint that adapts to the pipe diameter should be based on the actual pipe diameter of the pipeline before and after the flowmeter. Stainless steel or carbon steel variable diameter joints with corresponding variable diameter specifications should be selected, and concentric variable diameter should be preferred (eccentric variable diameter is only suitable for liquid phase media containing a small amount of gas). The variable diameter should be sealed and leak free, and the installation direction should be consistent with the flow direction of the medium.

2 Pre installation and commissioning conditions • Straight pipe section requirements: A Bi Hui Pai straight pipe section with a diameter ≥ 10 times the diameter should be retained before the flowmeter, and a straight pipe section with a diameter ≥ 5 times the diameter should be retained after the flowmeter. If there is a large difference in diameter between the front and rear, an additional straight pipe section should be extended before and after the variable diameter joint to ensure a stable medium flow field. Medium pretreatment: If the medium contains impurities and bubbles, filters and exhaust devices should be installed to avoid affecting the measurement accuracy of the gear

flowmeter. Wiring and power supply: Connect the signal line and power line according to the equipment manual, confirm that the power supply voltage and signal output type match the on-site control system Specific debugging steps 1 No load test: Close the inlet and outlet valves and confirm that the flow meter displays zero at noon without any abnormal jumping Slowly open the valve for exhaust: First open the inlet valve and slowly exhaust the residual gas in the pipeline to avoid impacting the gear impeller Load calibration: Gradually open the valve to the rated flow rate and observe the deviation between the displayed value of the flow meter and the actual flow rate Parameter correction: If there is a deviation, adjust the manual coefficient through the calibration menu provided by the device. Some intelligent flow meters can automatically complete zero calibration and range correction Stable operation test: Run continuously for 1-2 hours to confirm that the traffic display is stable without fluctuations Precautions - It is strictly prohibited to disassemble the flowmeter under pressure in the pipeline. The pressure relief and venting must be carried out first. When installing the variable diameter joint, it is necessary to avoid eccentric displacement, otherwise it will cause local flow field disorder. If the medium is under high temperature and high pressure conditions, it is necessary to choose a variable diameter joint and flowmeter body that is suitable for the working condition level. Regularly clean the filter to avoid impurities getting stuck in the gear impeller and affecting the measurement accuracy. Installation and use specifications for elliptical gear flowmeter. The installation and use of elliptical gear

Stainless steel gear flowmeter | How to debug and use gear flowmeters with inconsistent front and rear pipe diameters

1. Manufacturer of pipeline type online density meter

2. How to debug and use gear flow meters with inconsistent front and rear pipe diameters

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