I have been assigned with the task to design the closure (refer attachment) to comply with ASME Sec VIII Div 1. In this closure assembly, compression bolt engaged in split ring tapping along with split ring ensures the required sealing force.
Design conditions are
Material: SS316, temp: 300 deg...
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Again a few very basic questions regarding Jacketed vessel design and it's name plate marking. Vessel has an inner cylindrical shell containing shell side fluid (process fluid) which is heated by jacket side fluid (utility fluid), flowing in the space between shell & jacket. Consider...
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Please help me to get rid of below problem & Sorry for the long post.
We design vessels & piping for pressure max 10 bar & temp 350 deg C. But our next project demands for 100 bar design pressure. So I need your advice (based on industry practice) regarding flanged connection for piping...
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Can we use hollow cylindrical pressure part machined from rod / bar for ASME Sec VIII Div 1 application?
As per UG-14, we can use machined rods within the limits mentioned therein. But i am in dilemma after referring below interpretation...
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In our current project we are short of very few no. of SA193 B8M Cl.1 bolts (required for piping flanges) and due to current COVID situation bolt supplier will not be able to provide required bolt quantity on time. So we have decided to machine heavy hex bolts of spec SA193 B8M...
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Probably very basic question,
ASME Sec VIII Div 1 doesn’t specify mandatory standard for dimensions of bolting i.e., bolts & nuts.
So can we use bolt dimensions as per ANSI B18.2.3.1M & nut dimensions as per ANSI B18.2.4.1M, if they comply with SA 193 & SA 194 specification?
FYI...
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Which is the current edition or standard for ASME B106.1m standard?
One can see on ANSI website that ASME B106.1m is already withdrawn but doesn't have the superseding standard name.
I am also eager to know, which standard is used by EXPERTS for shaft design?
Is the method used in new...
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I have doubt in cone calculations as per ASME sec VIII Div 1.
1) In 1-5 calculations, t & tr refers to minimum required thk of cylinder & cone respectively. I am confused whether they correspond to internal pressure OR max thk calculated for internal & external pressure (whichever...
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I was referring external pressure table for HA-5. for each temp value & 2nd value of A factor, B factor is written as VALUE P.L., for eg., For temp = 20 deg & A fact = 0.00134, B factor = 131 P.L.
What is meaning of this P.L.?. I went to corresponding chart Fig. HA-5, ASME Sec VIII...
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We have vertical vessel to be designed as per ASME Sec VIII Div 1. The vessel is supported on vertical unbraced legs, which are attached to bottom torispherical dish end. The vessel will be subjected to internal pressure and lateral force due to earthquake. Pressure calculations...
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I have questions, regarding requirement of seismic calculations for small horizontal pressure vessel supported using lugs (since saddle supports are not feasible). The vessel weights during operation (flooded) are around 50kg & 100kg respectively for 2 vessels. The vessels governed...
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I understand this topic is discussed many times on the forum, but looking at the conclusion of below post in forum (refer the last comment)
https://www.eng-tips.com/viewthread.cfm?qid=397745
And corresponding contradictory ASME interpretation ...
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We are designing a pressure vessel as per ASME Sec VIII Div 1. For one of the part which is neither standard nor there exist design & construction requirements for such parts in this div, hence we have to use the U-2(g) to comply with this div. Please refer below image which nearly...
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Can we design a body flange with manway clamps instead of bolts for clamping, using ASME Sec VIII Div 1, mand appdx 2?
Note: Sealing material - non metallic o rings.
IMO, Bolt PCD shall be replaced by the PCD of clamp contact centre
But where we can find the allowable stress...
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I am dealing with structure made up of square HSS. I have few queries regarding design of pin / shear connection.
Please find the attached image of 2 options of shear connection.
In option 1, how to determine the thickness te? SCI recommend to use min thickness required to...
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I am designing crane supporting structure, please find the attached image of elevation view with oneside columns supporting gantry. The crane capacity is 10T & Span is 8.7m.; other dimensions as indicated in the attachment.
My questions are:
1) Can I use only single braced bay...
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I apologies for posting this topic once again, since we were not able conclude by that time.
A) This is with reference to ASME B16.5 para 5.4.3 & ASME B31.3 Appendix F para F308.4. Is it prohibited to use of spiral wound gasket for class 150 slip on flanged joint?
B) Is it...
For one of our steel structure project we require S235 JR grade steel. Selection of toughness grade as per EN 1993-1-10 results in JR grade. Also as per Eurocode EN 1993-1-1, even compression member require min toughness equivalent to En 1993-1-10 Table 2.1 stress category 0.25*fy. So it is...
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Can anybody tell, how to calculate the thickness of an eccentric reducer?
Any reference (standard / handbook)?
I understand that, it sound weird of calculating thickness of eccentric reducer, but I have to qualify the reducer as per B16.9 using design calculations instead of proof test...
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I have doubt regarding wind load calculation as per EN 1991-1-4, roughness factor calculation,
Q.1) Equation 4.4 gives 2 formulas/criteria’s for the calculations of roughness factor which are
A)cr(z) = kr . ln(z/z0) for zmin ≤ z ≤ zmax
B)cr(z) = cr (zmin) for z ≤...
