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Good afternoon everyone, I've got a general fluid mechanics type question here. I'm drawing up a V-Port ball valve for a flow throttling application, and am having trouble figuring out how to calculate something. If I am given an upstream pressure, and a required flow rate, how can I...

Inventor will be automatically take breaks into account, as long as it's a real break and not sketched.

Do you have any documents that state that PEEK is good at the pressure/temperature rating? My experience with PEEK will limit working at that pressure to a lower temperature, or vice versa. My documents include a heavy safety factor, however. Also, are you set in having a spherical sealing...

Mike wins.

I agree with IRstuff, read up on the "Find" capability and try to re-write it. Once I learned to use it, it has come in very handy.

B31.1 is Power Piping, whereas B31.3 is Process Piping. While both qualify as Pressure Pipes, they differ per ASME B31's definitions: Power Piping - piping typically found in electric power generating stations, in industrial and institutional plants, geothermal heating systems, and central and...

IFRs, that's my thing too, I hate using the equation editor in Word, especially when I'm already using MathCad to generate all of the results. I figure with a later version of MathCad, I can create a report that looks near identical to the one I have in Word and eliminate the need for me to...

So if I were to update my MC, what version would be ideal? Can I still get older versions before Prime? From what I'm reading, Prime 2.0 is a step backwards from 11? Keep in mind that I don't use MathCad for many things, and I only have a library of about 10 worksheets that, if necessary, I...

Zdas04, I understand what you're saying about the <ctrl>=, but as you said, the problem is that it won't update if parameters change, which is the point of doing it all in MathCad instead of transposing to a separate report. Looks like I'm going to be pushing the company for a later version...

Ah, got it, I read that as It was introduced in 12... you cant get it anymore. lol

Excognito, Thank you for the explanation, I did discover the usefulness of Areas and collapsing them, though for this report instance it wont do me much good. So, after 12 they removed the feature to have "c:=a+b=" ?? This program is pretty awesome, but that seems odd. lol

structSU10, In your version, how do you do it? If I define an equation, it won't let me hit an equal sign in the same equation. If you can tell me how you do it in 14, I'll try it in 11.

Thanks for the input guys! I hadn't ever heard of the hidden regions, I may see if I can do something with that and write my report directly into MathCad. Is there a way to sequentially show a solution in MathCad? That's not really the term I would use to describe it, but for example, I have...

I am no piping expert, just poking my head in here, but I would think that "grooved fittings" means that the connecting points are grooved, such as a Victaulic type connection.

Good morning Gentlemen, I don't frequent this forum much, and I did a quick search but did not find much that related to my question. I use MathCad 11 for completing Seismic Analysis in accordance with the ASME BP&V Code. I have created a template that I input a about a dozen variables into and...

What gerhardl said... There are many deciding factors. But basically, the spring can be designed to meet your needs. When I design our piston style checks, the customer will specify what pressure they would like the valve to open at, and we have a design a spring to meet the needs. It can be...

Also, in regards to an ASME spec; ASME B16.34-2009 section 6.2.6 states that any valve type not included in ASME B16.10 (which socket weld is NOT covered in) for End-To-End dimensions shall be the manufacturer's standard.

Measurements? Like when the part is being inspected? General practice, I believe, is as many measurements as it takes to be confident that the part is in print. That could mean 3 or 33. Definitely more than 1, though. I see where you're going though; even without GD&T, I would rotate the...

Thinking about it more, I agree with Mike. If you are designing your o-ring groove to something like Parker's design guide, you're better off specifying the depth of the groove anyway, and therefore, given the tolerance of your depth, you won't need a concentricity tolerance from the shaft.

Think logically about how a datum feature is supposed to work. You are supposed to simulate a datum when checking a part, so if I am envisioning what you are saying correctly, that may be difficult if you make the o-ring groove the datum feature. Also, you may want to specify what you are...