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Hello I am usually a mech installation engineer. I have Done large duct work installation and also helped do calculations before about the support calculations from steel work before. I am primarily a site guy anyway. But I am now in an office and have been given the task to do a preliminary...

OK great thank you very much for all the replies.

Hey thanks for the ANswer! I thought Victaulic had rubber seals in? Cat M States non metalic components are not allowed. I have worked with Victaulic a lot on a biofuel plant but didnt think it would be of use in this situation. Tell me if I am totally wrong though please:) Can you use them Cat M?

Thanks very much so these grey lock joints here could be used. But I have been told that the joints with 3 clamps are easier to take off than the ones with 2 clamps. Does anyone know why that is please or can you think of any other fittings that could be used rather than these I cant really...

If we have a system with stainless austenitic pipe work and it is catagory M asme B31,3. It will be low pressure like 2 bar. 3- 4 inch stainless. Must it have a welded connection or is it acceptable for others like grey lock etc? I dont have my copy of ASME to refer to I am afraid.

Hey! Sorry yeah its mainly services as no power generation will be happening. It is in Europe anyway. Thanks if you have any input.

Thanks I for got to add that the design is mainly amsme B31.3 Apart form having SQEP compliance (suitably qualified and experienced personnel) do they need anything else to work install an ASME designed system? Like coded welders? Anything like that?

Thanks yeah narrowed it down to 5 only. What to look for specifically though? Do i need to go down to the companee proceedures etc?

Hello I have been asked select companies to bid fore the mechanical and piping contract of a big nuclear project. This is a bit higher than my current level as I only know a bit about installation etc From a company what prerequisites would there have to be and how best to select the...

I have a question please. When installing stainless not category M pipe work that is Asme B31.3 is there anything in the standard about the flushing of pipe work? We have an engineer who thinks that all valves etc muct be removed and then the flushing of the pipe work takes place then you...

When pipes are pre-formed, is it necessary to anneal the sections before they are mounted in a vacuum system?

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Ok yes you are right. I only found that out after I posted the original question. So there is nothing wrong with my calculations apart from that then? The contractor did these calculator on 34 km of pipe work. The increase they factored in from carbon steel to stainless is correct it's just...

I forgot to say it is Schedule 40

I have posted 2 attachements below. One from estimators piping man hours manual 5th addition and another from a contractor who priced some work for us. The contactor got a value for a straight pipe run handling and erecting of 0.72 man hours per meter for a DN200 pipe. They also claim this came...

What should be in a construction work package to be given to a site engineer? Specifically around pipe work with equipment on a nuclear site. Risk Assesment Method Statement Sign on sheet for achnoledgement of RA and MS Isometrics P & ID Pipe support Design Point of work risk assesment to be...

Thank you thats a perfect answer! Maybe I would have got it myself if I was a few years younger. Its all the alcohol from working away from home working on site that has fried my brain. There are check v/v's etc I just didnt include them. Have a great day

Ps this is cooling water

The top sketch is of 3 pumps which is in the P & ID. The bottom is what is in the actual design. As far as I can see there is no difference and no advantage dissadvantage of either. Am I wrong?

This is from Caesar 2 but what is the thing that looks like some kind of expansion bellows? It is a stainless steel cooling water pipe.