Opening reinforcement problem

2019-06-12View Original

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Dear sea friends: I’ve been in this industry for only a short time, so I have a question. For the hydraulic testing of containers, if a M20 threaded hole is drilled in a DN200 blind flange to install a pressure gauge, is it necessary to conduct any calibration? Is it checked based on the opening in the flat cover? Thank you all!

Reply #22019-06-12

There is no need for verification to meet the minimum wall thickness requirement for openings as specified in GB150

Reply #32019-06-15

There is no need for verification to meet the minimum wall thickness requirement for openings as specified in GB150

Reply #42019-06-22

For openings in flat covers, it is recommended to carry out reinforcement calculations in accordance with Article 6.3.4 of GB150.3. The allowable minimum opening size without additional reinforcement generally applies to housings with fittings.

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Opening reinforcement problem

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