Reinforcement ring screw hole
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After the container is completed, should plug caps be installed on the inspection screw holes on the reinforcement ring? This post was last edited by GUANGWEI8.26 on 2009-2-13 10:32.]
It’s generally not used, but some users request it to be blocked.
This screw hole is used for a gas-tightness test to check the integrity of the reinforcement ring weld, and it does not need to be sealed.
It shouldn’t be necessary, but there are some requirements
It doesn’t have to be blocked; it’s fine even if it is blocked.
Nothing produced by our factory has obstructions; if the customer doesn’t request it, it’s better not to include any obstructions.
It’s not blocked, and the customer hasn’t made any requests either
In actual use, it certainly doesn’t need to be sealed; this hole is provided so that operators can promptly detect any leaks in the medium.
It’s really unclear what reason there is to block it.
No need to block it. It is used to check for leaks
It cannot be blocked, otherwise the leak cannot be observed
In accordance with JB/T4736-2002, M10 screw holes shall be drilled in the reinforcement rings of pressure vessel nozzles. This is done so that, after the equipment is manufactured, compressed air at a pressure of 0.4–0.5 MPa can be introduced to check the quality of the welds connecting the reinforcement rings; there should be no leaks at the fillet welds. So the screw holes don’t need to be plugged.
This screw hole is used to check the density of the reinforcement ring weld and is generally not sealed.
No need to block it. It can also be used as a signal hole on regular occasions. It can also serve as a passage for the air in the gaps to expand due to heating.
LS is right; as a signal hole, it serves as a weak point in terms of strength, allowing any leakage to be detected in advance.
Conclusion: It definitely cannot be blocked； Reason: To detect whether there is a medium leak as soon as possible during operation ； Suggestion: Apply some butter to the leak detection screw holes to slow down corrosion in the interlayer.
Do you think there’s a reason to block them? Their purpose is to cover the vent holes at the joints where the rings are welded, as well as the pores that appear during weld inspection; they don’t need to be blocked
There is no need to block it, as it is also called a signal hole, which is used to detect any leaks in the fillet welds in a timely manner. However, some customers request that the screw holes in the lifting lugs and protective plates be plugged with screw plugs — to prevent liquids from entering and corroding the equipment
10. Before the hydrostatic test, the reinforcement ring is subjected to an airtightness test at a pressure of 100 KPa; no leakage should be observed at the welds coated with soap. After the test, the test holes are sealed with butter. These are our standard technical requirements
It usually doesn’t get blocked, unless there are special circumstances!