플랜지(Flange) 볼트 체결 순서 (Tightening Sequence)

 

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 사실 한 방향으로 둘러가며 순서대로 꽉 체결하지만 않는다면 구태여 꼭 볼트에 번호 매기고, 순서 잡고, 이거 반 후 저거 반 할 필요까지는 없다. 그러나 꼭 한 명씩 막하는 작업자가 항상 있어 찐따 나는 걸 주의해야 한다.

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JUST FOR INFORMATION

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ASME PCC-1

Guidelines for Pressure Boundary Bolted Flange Joint Assembly

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11 TIGHTENING SEQUENCE

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11.1 Single-Tool Usage ​ (작업자 1명 - 장비 1개)

Select from the following:

(a) The Table 3 Legacy pattern and numbering system.

(b) The Table 3.1 modified Legacy pattern and numbering system.

(c) The alternative pattern sequences shown in Alternatives (1), (2), and (3) of Appendix F;

compliance with the stated limitations for their application is essential.

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The torque increment round-tightening information for the Table 3 Legacy pattern is detailed in Table 1 (see Figures 3 and 4 for an illustration of the Legacy crosspattern tightening sequence for a 12-bolt flange and a 48-bolt flange, respectively, the latter illustrating the bolt-grouping concept). Counterpart illustrations of certain alternative pattern sequences are covered in Appendix F.

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11.2 Multiple-Tool Usage​ (작업자 1명 - 장비 1개 이상)

Follow the procedures outlined in Alternatives (4) and (5) of Appendix F.

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▼ 동시작업 수에 따른 가이드 ▼

 

 

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