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I read the same information few years ago in the Pressure Vessel Handbook by Eugene F. Megyesy.

Design pressure for vessels is usually taken higher of 1.1 times the maximum operating pressure or 30 psi. Is this correct? Please confirm and give the reference as well.

Somebody told me that we cannot use SS316 Spiral Wound Gaskets below -100 Degree Centigrade. Is this correct? If not, then please let me know the minimum temperature, which this gasket can withstand. Please provide code reference.

For torispherical head, inside crown radius is equal to the outside diameter of the skirt. Regards, PEHasan

Pipe cap is actually a 2:1 semi-ellipsoidal dished head. Therefore, refer to UG-32 to calculate the MAWP of pipe cap.

Clause 8.13 of AS1210 (Australian Standard) requires at least one pressure gauge for each vessel fitted with a pressure-relief device. I cannot find this requirement in ASME Section VIII Division 1. I would like to confirm this thing with other members of this forum. Regards, PEHasan.

Internal painting of pressure vessel depends on the service of that particular vessel. For example, if we have to store oil in the vessel, then there is no need to paint the internal surface of the vessel. Oil forms a film on the internal surface and this film acts like a coating. If we have to...

Can we build a pressure vessel from SA240 TP 316L material with Duplex SS (UNS S31803) nozzles? If yes, what important things do we have to take into consideration while carrying out the design calculations? Also what electrode we can use for the welding of this composite vessel. Is there...

Refer to ASME B31.3 code.

I am trying to find out the formula for the calculation of Blank Diameters for 2:1 Semi-Ellipsoidal, Torispherical and Hemispherical dished heads. Please reply with full reference to the text (book or code). Hasan.

Stress relief can also be achieved by applying a preheat at a minimum temperature of 200 degree F during welding. PEHasan.

This vessel is an ASME Code "U" Stamp vessel. PEHasan.

This vessel is an ASME Code "U" Stamp vessel.

ASME Code Stamp Vessels are to be repaired by the workshop that possesses ASME "R" Stamp.

Hi all! Fabrication of 36" Pressure Vessel has been completed. This vessel has a support ring that is welded inside the vessel shell. This ring will support the tube plate. Vessel is about to be hydrotested. Just now we found out that we have to modify the support ring. Can we machine...

Calculate the blank diameter of dished head. This is the diameter of circular plate before any forming of dished head takes place. Once you know the blank diameter, you can easily calculate the surface area. By the way paint surface area does not have to be very accurate. Also wastage factor...

I have a very interesting question to ask. Your company have a very good working relationship with Company A. Your company also have a very good working relationship with Company B. But Company A and Company B both do not like each other. Company A and Company B both are engineering...

Check the possibility of using SIGMALine 2000 produced by Sigma Coatings.

60 degree C is fine.

Go to http://www.texasflange.com/Catalog.pdf.