Critical difference between CGA-320 and CGA-326 bottle valves?

- M
- Miki Kanazawa
  
  Contact options for registered users
posted
17 years ago

Wed, Sep 1, 2004 4:50 AM

Hey guys, looking to pick up a new bottle for welding gas. My current
bottles and regulator are CGA-320. A friend of a friend has a new-ish
bottle for sale that has a CGA-326 valve. Is it safe to use my '320
regulator on the '326 valve? (Does it fit?)

- P
- PJ
  
  Contact options for registered users
posted
17 years ago

Wed, Sep 1, 2004 3:36 PM

Check out the CGA guide here....Paul

formatting link

- J
- jim rozen
  
  Contact options for registered users
posted
17 years ago

Wed, Sep 1, 2004 4:06 PM

CGA-320 is listed as being for C02, and uses a sealing washer.
CGA-326 is listed as being for Nitrous Oxide.
If the bottle is for nitrous they won't fill it with CO2.
The two different fittings will not intermate and your regulator will not fit that tank directly.
Don't use nitrous oxide as a welding gas. Bad things will happen.
Jinm

Critical difference between CGA-320 and CGA-326 bottle valves?

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