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Bubble Flow Regs
Bubble flow regulators have a bobbin style flow meter that has a small ball floating within the vertical viewing tube guage. As the gas flow rate is increased it in turn pushes on the floating bubble harder that lifts it higher and shows a higher gas discharge reading. These types of argon gas regulators are very populare amongst tig weldong operators as they allow accurate settiong of tig shielding gas flow rates.