Welding Regulator Adapter

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In North America there is a standardized system for regulators & tanks that deal with compressed air. Tanks and regulators that fall under this system have a CGA number. CGA stands for Compressed Gas Association which was formed shortly after a man by the name Robert King sent out a letter, in 1913, requesting that the manufactures of compressed gasses meet in New York to set a standard. This Standard is what prevents you from mixing up your Oxygen and Acetylene hose lines and also what prevents certain regulators from attaching to certain tanks. You can find this number on your tank near where the regulator would mount to the tank. On the regulator this number is usually stamped on the nut that screws into the tank. For Example the average acetylene tank will say CGA-510. The 510 number is only used for represents the thread pattern which is 0.825 inch O.D. with14 threads per inch. 510 is not the only number for acetylene, CGA-200, CGA-300, CGA-520, all of these are other types of bottles and regulators. The Acetylene Regulators we sell all use CGA-510. If your tank is not a CGA 510 then you will need to use one of the adapters below.


CGA-200 to CGA-510 90° Adapter

Tanks with CGA-200 valves are the smaller tanks also known as “MC” tanks. The 90° angle allows for the regulator to be adjusted to fit nicely if you tank valve is set at that odd angle.

CGA-200 to CGA-510 - 90°

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AWS-0378 $18.20


CGA-200 to CGA-510 - Straight Adapter

Tanks with CGA-200 valves are the smaller tanks also known as “MC” tanks. Straight Brass Adaptor.

CGA-200 to CGA-510 - Straight

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AWS-0379 $13.80


CGA-300 to CGA-510 90° Adapter

Tanks with CGA-300 valves are commercial tanks. This adapts a commercial acetylene cylinder to our CGA-510 Regulators.

CGA-300 to CGA-510 - 90° Adapter

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AWS-0387 $25.00


CGA-300 to CGA-510 - Extended Adapter

Tanks with CGA-300 valves are the smaller tanks also known as “MC” tanks. Straight Extended Brass Adaptor.

CGA-300 to CGA-510 - Extended

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AWS-0388 $18.00


CGA-300 to CGA-510 - Straight Adapter

Tanks with CGA-300 valves are commercial tanks. This adapts a commercial acetylene cylinder to our CGA-510 Regulators.

CGA-300 to CGA-510 - Straight

Add to Cart
AWS-0389 $6.80


CGA-510 to CGA-510 90° Adapter

If you have a CGA-510 cylinder but you are looking to change the way the regulator fits to the cylinder this 90° adapter is exactly what you are looking for.

CGA-510 to CGA-510 - 90° Adapter

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AWS-0390 $22.00


CGA-520 TO CGA-510 90° Adapter

Tanks with CGA-520 valves are also known as “B” tanks.

CGA-520 TO CGA-510 - 90° Adapter

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AWS-0391 $25.00


CGA-520 to CGA-510 - Straight Adapter

Tanks with CGA-520 valves are also known as “B” tanks.

CGA-520 to CGA-510 - Straight Adapter

Add to Cart
AWS-0380 $18.00