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...
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.
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...
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...
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?
We have a concrete room with concrete walls, floor and ceiling around 7m high. Also there is pipework 8 inch to 56inch that is installed close to the ceiling which is then supported from the floor. How can you install this? The 8 inch is not a problem as it is stainless and can be manhandled but...
Is there any pros or cons from using compression fitting or screw in fittings for small bore stainless steel pneumatic pipework that supply valve actuators? Is there anything in the nuclear industry that is related to this at all please? Also it is possible to use seamless nylon tubing.
I can...
I do not have a copy of ASME B31.3 does anyone know if it is worth getting hold of one as we are trying to determine the requirements of buried pipework when it goes under roads and if it should be in sleaves? Also we are trying to find out the minimum depth it should be.
If the client is doing the design of the plant and equipment who should state where the field welds will be done and any modifications of the equipt for installation? The Client or installation contractor?
Could anyone tell me what this arrangement is? 2 pumps? The person I was going to ask is away for 2 days. A pump at the top and 2 vertical pumps lower down? I am pretty stuck. Thanks.
Hi basically we have 3 tanks to be installed in a concrete room of height 4.25 M. The tanks are 4.0 M high. We can not lift off the ceiling over the tank . How can we install it please any ideas? The tank is 2.5 tonnes in weight. As we can not lift from above is it possible to put embedded...
We have 2 stainless DN 600 pipes to go side by side in a 750 x 3500 shaft. Is this space too small to install the pipe in sections welding every 6m or would it be preferable to get the pipe delivered while the building is in construction and lift the pipes in 1 length then weld at the top and...
We have a section of pipework which is 9 tons in weight. it has to be lifted into position along with 4 2 ton tanks. The pipe is 300DN. We have to put in 2 runway beams for the purpose of construction. Would it be cheaper to chop the section of pipework up int 4 pieces and lift them up with...
Dowes anyone happen to know if the figures quoted in 'Estimator’s Piping Man Hour Manual'by John S Page for welding, fitting, erecting etc include the amount of time for any reworks of pipe systems? If it doesnt then how do you calculate the amount for this? Such as weld failures, non level...
We have had a company do us a quotation for approximately 3km of buried pipework. In their quotation they have stated that for every 12m length of pipe they deliver they will presume 5 cuts on the pipe and 6 welds. Is this some kind of engineering industry normal? What I have done is presume...
