【Daily Question】2017.8.16
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The last edit to this post was made by marke7 on 2017-8-17 at 11:40. When using sw6 to calculate flanges for arbitrary designs, does it happen that the flange fails the verification at a design pressure of 1.9 MPa, but passes the verification when the design pressure is 2.1 MPa?； Please analyze the reasons. It will appear ； When calculating flanges for any application, there are two options: calculating them as slip flanges (for design pressures ≤ 2 MPa) or as integral flanges. The method of calculating slip flanges is simpler, but it requires larger safety margins, which can lead to calculations that do not meet the required standards. Chemical Equipment and Machinery
It’s possible; this is related to the choice of fasteners and gaskets...
It’s possible; this is related to the choice of fasteners and gaskets...
It’s possible. There are hardly any standard flanges for which a calculation can be performed, unless the gaskets are made very narrow and bolts made of materials such as Q235A or 35. Standard equipment flanges have been used consistently over time, with extensive experience in their use leading to no changes in their design. The safety factor data for this flange states that it was 2.5 a long time ago; after the safety factor was adjusted, no changes were made since no issues arose from its use. This results in the calculation failing
This post was last edited by feng elegant on 2017-8-16 at 14:14 :L
It’s possible; this is related to the choice of fasteners and gaskets...
It’s possible; it’s not only related to pressure but also to the choice of fasteners and gaskets