May I ask everyone, where are the installation requirements and tolerances for in-situ level gauges specified?

2020-05-04View Original

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1) The allowable tolerance for the distance between the two connectors is ±1.5mm； 2) The distance between the centerlines of the two connectors shall not exceed 1.5 mm ； 3) The vertical distance between the centerlines of the two pipe flanges shall not exceed 1.5 mm ； 4) The perpendicularity tolerance of the flange surface shall not be greater than 0.5%. Which standard does this come from? ?

Reply #22020-05-04

NB/T47041 P52 and NB/T47042 P102 contain relevant information

Reply #32020-05-04

Check HG20584—2011, the section on the manufacturing of chemical containers

Reply #42020-05-08

Detailed regulations are provided in both the standards for horizontal vessels and those for vertical vessels

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May I ask everyone, where are the installation requirements and tolerances for in-situ level gauges specified?

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