Design pressure is 4 Mpa, material is 321. Is there a standard for manholes?
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A pressure vessel needs to be designed with a design pressure of 4 Mpa and made of material 321. Are there any standards for manholes? Is it feasible to use fully stainless-steel necked butt-welded male and female flanged manholes? Thank you for the advice! As a supplement: the design temperature is 200 degrees Celsius. This post was last edited by yong9809003 on 2009-3-16 10:36.]
For HG21094-21604 stainless steel manholes and handholes, HG21596 will suffice
In simple terms, a manhole consists of a flange, a flange cover, and a set of structural components; those that exceed the standard specifications can be designed on one’s own.
It’s such a waste to use all stainless steel; using a veneer will achieve the same result.
The manholes are also made of 321 material. Wafer-type butt-welded male and female flanged manholes are feasible.
It’s a waste to use all stainless steel; the sealing surfaces are lined with stainless steel, while the rest is made of carbon steel
Welded manholes with necks can withstand 4.0 MPa, but it still depends on the design temperature