Angle valve sizing question?

[gendow]

Other than ice maker tubing which is 1/4" compression, what are the different sizes for angle valves? And how can you decipher the size of it other than years of experience of just looking at it. These are what I know of;

3/8" compression
1/2" compression
1/2" IPS (and is F.I.P. interchangeable with I.P.S.)

 

[Mr_David]

Other than ice maker tubing which is 1/4" compression, what are the different sizes for angle valves? And how can you decipher the size of it other than years of experience of just looking at it. These are what I know of;

3/8" compression
1/2" compression
1/2" IPS (and is F.I.P. interchangeable with I.P.S.)

here is some info we discussed about tubing size.

1/2" IPS is Iron Pipe Size. FIP refers to female iron pipe size and MIP to male iron pipe size.

http://www.plumbingforums.com/forum/showthread.php?t=6986

Water pipe - Wikipedia, the free encyclopedia

From Wiki :

Water pipe
the way it is sized. PVC pipe for plumbing applications and galvanized steel pipe for instance,
are measured in IPS (iron pipe size). Copper tube, CPVC

 

[frodo]

different types of valves
globe valve
plug valve
ball valve
gate valve
butterfly valve
needle valve
check valve
solenoid valve
full port valve



different connections are, flanged, threaded, glued, compression,

WOG marked/stamped on a valve means, water, oil, gas