Search results for query: *

Hi, Thanks for this excellent post for new commers like myself. I just had a simple question, If there are 5 elements i = 0 to 5, what will be the Bending Stress formula? I have attached excel file that I am having for 6 nodes, 5 elements. Thanks datsnl Dharmit Moonish Ent Pty Ltd...

That makes sense. Infact a lot of sense now........... Cheers Dharmit Hatch Associates www.hatch.com.au

Harvey, I think I am awaking from my winter sleep, but the values given by you for the k values for Mitre bend is for a single mitre. Wait let me make it more clear. If I want to use 90 degree mitre bend with 3 weld, I have to use 3 * 0.34 = 1.02 for the value of k. Correct me if I am wrong...

Thanks guys, This was fun, Thanks for your help and research. This will be helpful to me. Cheers Dharmit Hatch Associates www.hatch.com.au

It depends which units you consider. If I take velocity in m/s and gravitational acceleration in m/s^2 then the units of PD will be in meter, as K is not having any units, its dimensionless. Then to get the PD in Pascal use the formula PD(Pascal) = Density of fluid (kg/m^3) * gravitational...

Thanks guys, Sorry for being dumb, but the K values provided by Katmar and Yorkman are the one that can be used directly in the formula PD = K * (V^2 / 2*g) where PD is Pressure Drop V is velocity and g is gravitational acceleration. Correct me if I am wrong. Thanks Dharmit

Sorry for my way of explaining the problem. There are various methods of saying a technical word in a non technical way and the most you prefer is the one that is used in the place you work. Here they call mitre bends as lobster back, but i refrained from using that term. cheers

I am not sure, but as far as I know, the calculation given in Technical Paper 410 suggest that there should be 1D spool left before and after the mitre cut, but in real practice when we use a 2 cut mitre or a 3 cut mitre, 1D before and after the cut is never achieved and so I doubt that...

Is spiral wound good for process fluids. The plant on which I am working is having Nicle Carbonate and this plant used to use Stainless Spiral wound pipe, but there is a drive to use seamless pipe because of corrosion attack on weld. The pressure is low and temperature is around 90 deg C. The...

Hello, I am using Crane technical paper 410 for calculating pressure drop but I am not able to find pressure drop for 45 degree or 135 degree tee. Can anyone help? Also, I would like to know, what will be pressure drop of the mitre bend if it is a 2 cut or 3 cut mitre? Crane Technical Paper...

Thanks John, I had never thought that gussets would prove to be a hindrance. I will discuss this issue with our Mechanical Head and also do the calculations for the reinforcing pad as per Appendix "H" B31.3 that you have suggested. Thanks "Thought we might have best computers and the...

Thanks richay, I think now its the job of our FEA guyz to sort this out. Cheers

Guyz, I am doing Stress Analysis of a DN1050 dia pipe which has a 45deg Tee. The pipe already exists on the site and this is like to like replacement. This tee has 4 gussets placed 90 deg to eachother. The tee fails in Caesar II analysis because I dont know how to model gussets in Caesar II...