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Liquefied gas storage tank installation

2.5 The flange connection should be concentric with the pipe, and the bolts should be guaranteed to penetrate freely. Flange bolt holes should be installed mid-span. The flanges shall be kept paral...
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2.5 The flange connection should be concentric with the pipe, and the bolts should be guaranteed to penetrate freely. Flange bolt holes should be installed mid-span. The flanges shall be kept parallel, and the deviation shall not be greater than 1.5% of the outer diameter of the flanges, and shall not be greater than 2mm. It is not allowed to eliminate the skew by tightening the screw.

 

2.6 For pipes whose working temperature is lower than 200 ?C, the sealing material of threaded joints should be polytetrafluoroethylene tape. When tightening the threads, the sealing material must not be squeezed into the tube.

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