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Hello everyone, Was hoping someone would be able to help me with an issue I have. I have a pipework system which is essentially open to atmosphere. Its an anti ice system. Hot air is passed through a manifold and through a series of risers, then passes out into the airstream of a gas turbine...

Hello, I have an issue which is confusing me a little and I'm hoping someone can help. I have 2 questions: Is it possible to achieve CE marking if you're designing to American codes - ASME? What is the stance on using ASME on sites in the EU? The site is in UK / Europe. As far as I'm...

Hello, I have an issue which is confusing me and I'm hoping someone can help. Is it possible to comply with EN1090-1 and achieve CE marking if you're designing to American structural codes - IBC and ASCE? The site is in UK / Europe. As far as I'm concerned, Eurocodes must be used for the...

Hi everybody, Apologies if this topic has been discussed time and time again – I’ve had a good search but can’t find anything, maybe using the wrong ‘buzz words’. Anyway, my question is of a pipe threading nature. Small bore pipe and pipe threading is not a strength of mine so I’m having some...

Hello all, I just wanted to check this with someone in case I'm missing something obvious..... I need to use a threaded coupling at one point in my arrangement to tie in with existing equipment. The connection is a 1" female thread. I am going to apply the required male thread onto my 1" pipe...

Good afternoon, I have an issues which I'm having trouble with and was hoping to get some advice if anyone can help...... My company would like to design its own pipe silencer rather than buy one from a acoustic company..... The concept is a 6" pipe contained within a 12" pipe and 12" end...

Hi all, Is there any rule or code restriction that stops you from using steelwork sections from different countries in the same steelwork structure? We have a structure fabricated using Chinese sections, but we need to do a modification / addition and it would be best to use UK sections if...

Hi everyone, Hope all is well. I’m not sure if this is the right area to ask this question - apologies if not, but any help would be massively appreciated. I was hoping you could give me some advice about which anchor bolts to call off to hold down a cylindrical exhaust stack that is...

Hi guys. I'd just like to run something by you if you don't mind. I feel like I know what the answer would be but I just want some expert confirmation before I make someone spend some money..... We've got a 2.5" class 300 RFWN flange. Bolt hole in these flanges is 7/8" as per ASME B16.5. In...

Hello, I'm not sure if this is the correct place to ask this question, but hopefully you can help me with this issue...... I have some lifting features to be used for lifting an exhaust stack. These features are located inside the 'gas path' and will get heated up to the full exhaust...

Hi everyone. I'd just like a sanity check if you don't mind..... I'd specified standard ASME hardware for a 316L flange (A193 Gr B8 class 2 bolts and A194 Gr 8A nuts). Our purchasing team has asked the question regarding using A2 hardware. My immediate response was no, for 2 reasons...

Hello! This is just a general question rather than a problem or issue I'm having. We had a discussion in the office yesterday and the term 'green length' was being used over and over again. We are calling off pipe lengths on drawings and we need to include some extra length, which is being...

Hello! First of all – let me say that this is a great forum for pipeline and piping issues. I visit this forum on a daily basis to read about different topics and issues that other engineers have to try and learn more. The discussion and advice is always very informative and helpful. I now...

Hi everybody. First of all - great forum and great posts in here. I feel like I've learnt a lot from reading various threads, and its my first port of call with any kind of technical issue. Thank you for that. However, after searching the forum, I cant find any information on my current...

Morning! I've been asked to confirm how long it would take to fill a 445,000 litre volume to a pressure of 1.2kPa using a air source that provides 130 litres a second of air at a pressure of 620kPa. Firstly, this seems like a very low pressure to set the volume to (1.2kPa). But' I've...

Hello, I have a question regarding bolt material. I'm hoping someone can help me. I have a stainless steel flange (Gr304), class 600, 550oC design temperature, 27barg design pressure, and I'm designing to ASME B31.1. I dont know if I should be using A453 Gr 660 bolts or A193 Gr B8 Class 1...