EOSD, CV,XV,ZV Valves

[gujula]

Can anyone explian in detail about the expansion and uses of EOSD, CV,XV,ZV Valves in Process Piping Plants?
Also need VALVE TEST SHOP REQUIREMENTS AS PER SAUDI ARAMCO REQUIREMENTS.
Please send me the detaisl urgently.
Thanks

Gujula J Raju
QA/QC ENGINEER/WELDING & PIPING

 

[pennpiper]

I think we are going to need some definitions.
a). "Can anyone explian in detail about the expansion" expansion of what?
b). EOSD?
c). CV?
d). XV?
e). ZV?

prognosis: Lead or Lag

 

[GHartmann]

These look like ISA nomenclature for various type of valves possibly corrupted by the specific P&ID legend utilized.

EOSD - emergency operated shut-down ???
CV - control valve (normally procede by F, L, P etc for controlled variable)
XV - Manually operated or solenoid operated valve (depending on the nomenclature convention)
ZV- Miscellaneous valve (z being miscellaneous or axial)

There are too many varitions to name.

You have categorized these by function. Then there is another list of valve types:

Globe, plug, ball, butterfly, angle, etc which is equally important for the test shop.

Good luck!

 

[hsbcn]

Metso has a great overview for these terms here:

http://www.iceweb.com.au/Valve/SDV_BDV_ESD_Valves/ESDValveSelGuide.pdf

My focus is on valve stockists in the us and uk who supply duplex and super duplex valves, and inconel and hastelloy valves, plus titanium, alloy 20 and 904L valves.