CV code valves 2

[olmedo]

Can someone please tell me what CV code valves mean?

 

[BigInch]

I don't think anybody really understands the question. Do you mean like in FCV or PCV?

FCV = flow control valve
PCV = pressure control valve



Going the Big Inch!

http://virtualpipeline.spaces.msn.com

 

[olmedo]

Thanks BigInch,
"CV code valves" is supposedly an "approved standard" for valves. I have searched the internet for it but did not find it. It could be in relation with ASME B31.3 as the piping system is in accordance with it.

Olmedo

 

[Ashereng]

Olmedo,

I have never heard of "CV code valves".

Would you give a bit more description and background? It may help.

"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

 

[IRstuff]

see page 79:

http://engstandards.lanl.gov/engrman/6mech/pdfs/D20-AppA-ASME_B31.3-r1a.pdf

TTFN

 

[BigInch]

IR that's the right stuff alright. Thanks!

Going the Big Inch!

http://virtualpipeline.spaces.msn.com

 

[olmedo]

BigInch and IRstuff,

Thanks again. Actually it is in that LANL website were I encountered "CV Code Valves" but I do not know where it refers to. Can you help me out with this?

Olmedo

 

[BigInch]

LOL

Going the Big Inch!

http://virtualpipeline.spaces.msn.com

 

[JLSeagull]

The Los Alamos document uses the term CV Code like a valve catalog number. The PIP has a standardized piping specification format. Most companies with a piping department have some way to differentiate valves.

 

[Ashereng]

Olmedo,

I think this may be a company specific designation.

"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

 

[IRstuff]

see page 2:

http://shop.solardirect.com/pdf/water-heaters/valves/am_series.pdf

-- "anti-scald code valve"

see page 12:

http://www.velan.com/products/pdfs/vel-cryo-2001-web.pdf

-- "An ASME Section III manual for code valve production"

see page 94:

http://www.nrc.gov/reading-rm/doc-collections/nuregs/conference/cp0152/v5/ml041900037pt3.pdf

-- "The identification of appropriate reliability tasks and
documentation can be identical for both ASME Code
check valves and non-Code valves."


TTFN

 

[olmedo]

Thanks everybody specially to IRSTUFF, I now believe that "CV Code Valves" refer to ASME Code probably ASME B16.34. The initials CV could be "Common Valve".

Olmedo

 

[hyposmurf]

Hi Olmedo , maybe you are reffering to the CV or flow coeficient of a valve that is defined as
THE NUMBER OF US GALLON PER MINUTE AT 60°F THAT WILL FLOW TROUGHT THE FULLY OPEN VALVE WITH A PRESURE DROP OF 1 PSI

 

[rconner]

I believe it is generally best to minimize acronyms in documents of the engineering and perhaps other fields, but I also don't necessarily dispute the convenience of such abbreviations. Regardless of formal rules or requirements in the field, I think it is however most helpful (when one uses acronyms) to at least provide a reference or expansion/definition the first time the acronym appears in a document.