Modification Order No. 1 for Spherical Tank, Modification of Extremely Hazardous Import and Export Settings
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GB/T 12337-2014 "Steel Spherical Storage Tanks" was recently released* * Standard No. 1 Modification Order. The release date is October 14, 2022, and the implementation date is May 1, 2023. There is a very big change in the picture, which is Article 5.6.5 of the 2014 version.: For spherical tanks containing extremely or highly hazardous media, the inlet and outlet should be opened on the upper pole.
For spherical tanks containing extremely toxic or highly hazardous media, the inlet and outlet are generally opened at the upper pole. Due to special requirements such as technology, holes can be opened at the lower pole, but measures such as increasing the flexibility of the pipeline should be taken.
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