Operating Precautions for Turbine Flow Meters

Abstract: The information on the precautions for the use and operation of the turbine flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. 1 Use of each unit 1.1 After installation, ensure that all chips and debris have been removed, and that the system has been purged, pressure tested, and air flow entered and boosted to the flow meter inlet valve. 1.2 Open the small ball valve upstream of the turbine flowmeter 1.3 Slowly open the turbine flow. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the article on the use and operation of turbine flowmeters. 1 Use of each unit 1.1 After installation, ensure that all chips and debris have been removed, and the system has been purged, pressure tested, and air flow in and boosted to the flow meter inlet valve. 1.2 Open the small bypass ball valve upstream of the turbine flowmeter 1.3 Slowly open the small bypass valve upstream of the turbine flowmeter, and slowly charge the gas until the electric forcibly sealed ball valve downstream of the turbine flowmeter. CAUTION: Severe pressure shocks or rapid high-speed pressurization can damage the turbine flowmeter. To protect the gas turbine flowmeter, the pressure rise applied to the turbine flowmeter cannot exceed 35kPa/s. If the pressure change cannot be measured on site, the flow rate of the monitoring turbine flowmeter cannot exceed the limit. 1.4 Close the bypass ball valve and shut-off valve. 1.5 Turn the handwheel to open the inlet forced seal valve. 1.6 Slowly open the electric forced sealing ball valve downstream of the turbine flowmeter (for at least 1 minute), the manual switch on the actuator should be used, and be careful not to overspeed the turbine flowmeter. 1.7 Follow steps 1.2-1.6, the whole system is pressurized and the natural gas starts to be measured. 2 On-line comparison of gas turbine flowmeter (comparison of working circuit and main circuit) 2.1 Make sure that the inlet and outlet valves of the main circuit are closed. 2.2 According to“1 Use of each road”In steps 1.2, 1.3, 1.4, pressurize the main circuit. 2.3 Close the electric forced sealing ball valve at the outlet of the working road, slowly open the forced sealing ball valve of the comparison pipeline, and slowly open the electric forced sealing ball valve at the main road outlet. Should be doing three jobs at the same time. 2.4 The gas passes through the working circuit and the main circuit in sequence. Two turbine flowmeters can be compared to each other to check for large deviations. 2.5 When the comparison is over, close the two forced sealing ball valves on the comparison pipeline and the main road, and open the outlet ball valve of the working pipeline. You should do all three at the same time. 2.6 At this time, the working road is put into work again. 3 Use the mobile calibration vehicle to calibrate the gas turbine flowmeter online. 3.1 Make sure that the electric forced sealing ball valve between the two calibration ports is closed. 3.2 Open the small ball valve on the flange blind plate of the calibration port to ensure that there is no pressure inside the flange blind plate. Then remove the flange blanking plate. 3.3 Connect the mobile calibration vehicle to the calibration port. 3.4 According to“1 Use of each road”In steps 1.2, 1.3, 1.4, pressurize the main circuit. 3.5 Close the electric forced-sealing ball valve at the outlet of the working road, slowly open the forced-sealing ball valve of the comparison pipeline, and slowly open the two calibration forced-sealing ball valves on the main road. You should do all four at the same time. 3.6 At this time, the gas flows through the two gas turbine flowmeters and the mobile calibration cart in the sled in turn. 3.7 After completing the online calibration, close the two Orbit ball valves at the calibration port, slowly open the forced sealing ball valve of the comparison pipeline, and slowly open the electric forced sealing ball valve at the outlet of the working path. You should do all four at the same time. 3.8 Reinstall the flange blank, don't forget to close the small ball valve on the flange blank. 3.9 At this time, the working road is put into work again The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Operation Precautions for Turbine Flow Meters'

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