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Thank you gents this makes things much clearer. Therefore no structural assessment on the handles / welds as their purpose is not to provide structural reinforcement. That being said we are still welding to the pressure containing component therefore the welds will need to comply with the...

Thanks but the clauses you have identified do not include a structural assessment on the weld, are you saying this is not required?

13445-3

Ok thank you, so can you please advise whether I need to comply with Annex A or is this negligible due to the fact we are using Aluminium Alloy.

Hi, We have been supplied with these components by another supplier but we lack confidence in the design. Does this weld qualify as "pressure bearing" considering it is located on the opposite side of the pressure retaining boundary, however will be subject to stresses once the blank starts to...

Hi yes they are welded to the pressure retaining component I uploaded a sketch.

Hi all, I have a query I hope you can help me with. We will be using some Blanking plates to blank apertures in a tank to enable pneumatic pressure tests. The blanks are manufactured from Aluminium Alloy 5083 H111 / O and have welded handles (also 5083). Are you able to advise which clauses...

It would be possible to install bladders by lifting them into the tubes, however this does seem like an 'over-engineered' solution. The simplicity of foam blocks would make them more favourable.

Thanks for the feedback guys, I cannot provide any further details on the application itself as its restricted information. Essentially these are HY80 structural steel tubes with a 3 mm wall thickness, and are orientated vertically about axis of tube. The manhole entry size at the top of the...

It is not possible to test with water - testing with air is the constraint. The test pressure is 50 psi. Mike, thanks for the link but using balls will not be feasible as installing / removing them may prove some difficulties due to the size of the tubes. Thanks

Hello, We have a requirement to pressure test some large volume cylinders (80 m^3) using air however there are some concerns regarding the magnitude of stored energy in the cylinders at the test pressure, which if released in uncontrolled conditions could have detrimental effects to surrounding...

Thanks for the info chaps. Unfortunately 1.4501 is not listed in EN 1515-4. BS EN 3506 does not include 1.4501 however it does mention that Duplex Stainless Steels will be included in a future edition of the standard (last published in 2009). Would it be satisfactory if the Fasteners were...

Hi, I have a query with respect to Fastener grades/standards that comply with BS EN 13445-2. There is a requirement to use 1.4501 Super Duplex Stainless Steel Fasteners to BS EN 10088. This standard is not listed anywhere in the code under 'fasteners', it is however a harmonized product...

Hi, I have a query with respect to Fastener grades/standards that comply with BS EN 13445-2. There is a requirement to use 1.4501 Super Duplex Stainless Steel Fasteners to BS EN 10088. This standard is not listed anywhere in the code under 'fasteners', it is however a harmonized product...