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『Installation Specification for Natural Gas Flow Meter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
Is the gas mass flow meter user-friendly?
2. What are the requirements for installing natural gas flow meters?
The core requirements for installing natural gas flow meters include correct selection, standardized construction, and regular calibration. Requirements for selecting the old hungry type • Measurement accuracy: Industrial and commercial use requires 1.0 level or above, residential use requires 1.5 level • Flow range: minimum flow ≤ actual minimum gas consumption 20%, maximum flow ≥ actual maximum gas consumption 120% • Explosion proof grade: Exd Ⅱ CT6 or above (GB3836 standard) 2 Installation environment - height 1.4-1.7 meters above ground (membrane meter) - horizontal distance from electrical equipment ≥ 0.5 meters - ambient temperature -10 ℃~+40 ℃ (if exceeded, insulation/heat dissipation devices need to be installed) 3 Pipeline construction - Requirements for front and rear straight pipe sections: Turbine type front 10D, rear 5D, ultrasonic type front 5D, rear 3D (D is the pipe diamet
1.5 times the design pressure, holding pressure for 30 minutes - Airtightness test
1.1 times the working pressure, soap water testing - Metrological verification: Must obtain a statutory verification certificate. Note: The GB/T39841-2021 standard, which will be implemented in 2023, requires industrial and commercial flow meters to have temperature and pressure chamber compensation function. When it comes to hot work, combustible gas detection must be carried out in accordance with the GB50493 standard.