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CGA
CYLINDER CONNECTIONS
 
 
DESCRIPTION

The standard cylinder connections shown in the table below convert CGA cylinder valve outlets to 1/8” NPT male, or 1/4” NPT male, or 1/4” face seal male.

Caution: When changing the gas service of a regulator or gas system by changing the cylinder connections, the regulator or system must be thoroughly cleaned prior to the introduction of the new gas. It is strongly recommended that you consult with your supplier before attempting any conversion to confirm that the intended conversion can indeed be performed safely, or that such equipment be returned to your supplier for conversion.

 
HOW TO ORDER
Order by CGA No. and description, i.e. "CGA 350 brass cylinder connection". "X" indicates availability.

CGA
No.
Chrome
Brass
Brass
1/4" NPT
St. St.
1/4" NPT
St. St.
1/4" Face Seal
Monel®
1/4" NPT

170 X* X* X* - -
180 X* X* X* - X*
240 - - X - -
280 - X X - -

290 - - X - -
296 X X - X -
300 - X - - -

320 X X X - -
326 X X X X -
330 - X X X X

346 X X X X -
347 - - X X -
350 X X X X -

510 X X X X -
540 X X X X -
580 X X X X -

590 X X X X -
626 - - X - -
660 - X X X X

670 - - X X X
677 - - X - -
678 - - X X  
679 - - X X X

680 - X X - -
695 - X X - -
702 - - X - -
703 - X X - -
705 - -- X - -

* Fitting has 1/8" NPT male instead of 1/4" NPT male
 
CGA
CONNECTIONS GASKETS
Some standard connections and all DISS connections require a gasket to achieve a leak-free connection. Gaskets should be changed each time the connection is attached to the cylinder valve.
 
HOW TO ORDER

Model pressure range

CGA110WA Teflon gasktet for CGA 110 & 679
CGA170WA Teflon gasket for CGA 170
CGA180WA Teflon gasket for CGA 180
CGA240WA Teflon gasket for CGA240
CGA320/330WA Teflon gasket for CGA 320 & 330
CGA660/670WA Teflon gasket for CGA 660 & 670
CGA678/680WA Teflon gasket for CGA 678 & 680
CGA679PB Lead washer for CGA 679
CGA 705WA Teflon gasket for CGA 705

DISS-NI Nickel gasket for CGA 632 thru 726
DISS-K Kel-F gasket for CGA 632 thru 726

 
 

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