DEAR ALL ,

I am doing analysis of line connected between thin wall evaporator . this line is straight connected with receiver then out let of receiver is being connected to 2 jacket line with the help of Y type fitting. Jacket lines are at 45 degree due to space constraint and process requirement. Can any one help me how to get the SIF of this Y type connection ?? or provide guidance how can i calculate the sif of this connection.

Are you referring to a latrolet-type connection? If so, there's an option for that.

http://www.bonneyforge.com/specs/branch/latrolet.cfm

Hi all,

I am also facing similar issue in calculating SIF for "WYE" piece, which we are using for Cold re heat line of Boiler.
I've the drawing of the same, don't know how to upload here, pls help

Thanks Michael !
In case of bonneyforge latrolet C-II directly provides value of SIF .
Howevr it is inverted Y type connection where flow is being divided at 45 degree in two equal size branch.

I have uploaded one image of the same in file manager .

This is my opinion, but...

SIF terminology only applies to elbows and single-branch constructs, of which this has two. As such, there is an interaction between the two branches that is not readily interpreted within the piping code or the software. Essentially, the SIFs of the connections could vary greatly based on what is happening at the other ends.

You would have to CNODE-anchor the three connections of this construct, and if the manufacturer of the fitting cannot provide you allowable loadings, you would need to run an FEA on it.

hi,
In My projectalso there is Y-CONNECTION.
We have given forces and moments produced at y- connection to FEA team for analysis.
So sif generated by FEA needs to input in your CEASAR model, for correct result.
Regards,
Nitin Lonkar