Choosing an argon pressure reducer for welding is a very practical issue. argon gas is an inert gas that is always in a gaseous state, making it easier to choose, but there are still key points to note.
Single gauge pressure regulator (only with output pressure/flow meter)
1. Characteristics: There is only one meter head, usually a flow meter (unit: liter/minute L/min), used for precise adjustment and protection of gas flow rate.
2. Advantages: Simple structure, lightweight, affordable price, intuitive and accurate flow regulation.
Applicable scenarios:
TIG welding (tungsten inert gas welding): This is the most commonly used and standard configuration. TIG welding only requires knowledge and precise control of gas flow rate, without worrying about the pressure inside the bottle.
Dual gauge pressure reducer (with high pressure gauge and flow meter)
1.Features: Two headers. One high-pressure gauge displays the inventory pressure (MPa) inside the argon cylinder, while the other flowmeter displays and regulates the output flow rate (L/min).
2.Advantages: It can intuitively see how much gas is left in the gas cylinder, making it easy to manage gas inventory and plan work.
3.Applicable scenarios:
MIG/MAG welding (gas metal arc welding): especially when using argon gas mixtures (such as Ar+CO ₂, Ar+O ₂). Due to the high price of mixed gas, it is important to understand the remaining gas volume.
A production workshop that requires precise control of gas usage.
Any occasion where it is necessary to check the bottle pressure.
Brief suggestion: If you mainly do TIG welding, choosing a reliable “single meter argon pressure reducer” (i.e. argon flowmeter) is completely sufficient.
Confirm technical parameters: Interface thread is of utmost importance.This is the core of preventing buying mistakes, it must be confirmed!
Inlet thread: It must match the thread of the standard argon cylinder valve in your region.
The most common argon gas cylinder interface in China is the G5/8 “left-hand thread (reverse thread), which has groove markings on the thread.
Important reminder: When purchasing, be sure to inform the seller that it is for “argon gas cylinders” or directly confirm the thread specifications. The threads of argon gas (reverse teeth) and oxygen gas (positive teeth) are different, and mixing is strictly prohibited!