Thread diameter and pitch for oxigen and nitrogen

[pardal]

Hi valve experts.
I need to know what are the diemters and pitch of male and female thread used on cylinders valves.
Seem to be 0.885" diameter 14 thread per inch.
which standar cover its.

Thanks in advance Pardal

 

[greener]

These are CGA Connection more than likely if in the US.

goto

http://www.concoa.com

They have the standard CGA connections for each gas listed along with the thread information.

 

[pardal]

Hi greener, thanks for it.

After doing a phisycal search here in my location with the cylinder vendors , I noticed that each country has it's own standard
Here we use 1/2" BSP male for Oxigen,

5/8" Bsp female for nitrogen

3/4" Bsp female for acetylene

and 3/4" Bsp femele left thread for Hydrogen.

If needed I have the drawings .




Pardal