Yes, I have an edition of the "bible", but I could not find any kind of mechanical explainations on the how's & why's a correct thread will perform when assembled into a mating part. I am more interested in any sort of troubleshooting that could be found with engagement.
Mike
Can anybody tell me, point me to a website, or publication that explains the mechanics of how a NPT thread is supposed to work, and possibly have some troubleshooting? I am familiar with ANSI B1.20.1, but need something that would explain the engagement that is supposed to occur. In a perfect...
We seem to be having an issue with the roundness of a run of the mill 2" NPT plug. Is there anything specifically called out for in the standard that controls this?
Thanks for the help.
Mike
I have inspected both the pipe and the fittings prior to welding, and the pipe is .4888" and that is going into a fitting with a diameter of .491+.003/-0". I do not believe that with this gap there would not be a cause for concern.
The vendor that is welding these parts has done so for may...
Ok guys, I just did some looking on line and found out the the type of weld that is called out for on the print is a bevel weld(noted by the bevel symbol on the reference line). Pardon my ignorance to different weld specifications, I did not know this all existed.
BillPSU, would it be...
HgTX, understand that the weld is to be a fillet, but instead of being concaved the weld is convexed(not sure if that matters or not), but I still have a problem with measuring the weld because of not knowing where the limits of the pre-welded parts were. In other words I do not think that I am...
It is a fillet weld I believe.
We have a thin wall pipe welded into a threaded fitting, and the callout is where the pipe is pressed into the fitting and then welded.
Mike
An issue that comes to mind with the profile of a line or surface would be the specialized equipment that you would need to accomplish what you had asked.
From my research on surface finish, I found that on Rq(RMS) IS sensitive to peaks and valleys on a surface and the reading accounts for the...
Have you thought about changing you measurement parameter? Since this is a critical surface you may want to look at Rq(RMS) and possibly even ask for a print change that would ask for a tighter tolerance, or a note that would specifically ask that no nicks, sctraches, or ..... be permitted in...
Is there anybody that deals with castings and can answer me a question on the proper use of a NPT ring gage on a pipe plug?
I know that when gaging pipe, flush would be the end of the pipe(according to B1.20.1), but would the same hold true for a plug? The cast plug does in fact have a cast in...
Ok, what I'm looking for is the industry standard on the "correct" method of calling out surface finish.
Is there a difinitive answer to this in B46.1 - 2002?
In the 1995 version, most if not all the examples are for the use of the parameter "Ra" .
I understand that in 1995 ISO had deemed...
