Variable-diameter flange design
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Structural design of the connection components for Φ100 high-temperature and high-pressure pipelines; this connection uses a variable cross-section design to enable the joining of Φ100 and Φ60 pipelines. Could someone with experience draw a simple diagram? I have no idea at all
Is it possible to use two DN100 connections and then change the inner diameter of one end to DN60?
If possible, are there any standards for the intermediate transition?
It’s the issue of different sizes: the flange at the smaller end is the same as that of a Φ60 pipe, while the flange at the larger end is the same as that of a Φ100 pipe.
Are there any standards for this type of abnormal head size?
No. The distance between the two flanges depends on the structural requirements. Too long and takes up space ； Too short results in heavy losses.
Same question: Should concentric tapering or eccentric tapering be considered?
For this non-standard case, refer to the standard of 108 changing to 54 and design one accordingly. Each of the two ports can be equipped with a flange respectively.
I really can’t think of how to approach you using this method.