Gas saver vs Gas lens

[Steph]

Hi, would anybody here please explain what is Gas Saver and Gas Lens??? What's the difference and similarity?? What they're used for???
Thanks for your information, I appreciated it much. God Bless!!!

[tigqk]

They are pretty much the same thing, the gas save is a pyrex tube with a wire separater at the top to keep the flow laminar, and the gas lense uses diferent stacked type of stainless media to do the same with the gas flow, at a certain point you have to increase the gas flow throuh a gas lense where as with the gas saver you don't have to make the changes because the are is smaller than a comparable gas lense.Visibility is better though a gas saver.

[Tritium]

Not all gas savers use a pyrex cup: CK Worldwide D3GS332 3-Series Standard Diameter Gas Saver Kit

Even though the URL states Pyrex-Nozzels this kit uses an alumina cup.

Thurmond

[rustycase]

Tigqk has given a decent explanation of the devices! +1

The laminar flow will preclude turbulence for a significant distance further than a standard cup, and that will prevent air from being introduced into the HAZ.

Electrode stickout significantly further than with a standard cup is also possible, making it possible to weld within acute angles.
(a very valuable asset for me.)

All the above would allow you to run less pressure/LPM on the inert gas flow, saving $'s !

Best
rc

[SICFabrications]

the gas lens diffuses the outflowing shield gasses. what this accomplishes is less turbulence of the shielding gas, allowing for better stick out. the gas saver uses a super giant cup along with a "diffuser" to allow a more complete coverage of the weld puddle using the same amount of flow of shielding gas. the advantages of a lens and saver amidst the obvious are better stick out and better weld puddle coverage. the biggest DISadvantages are NOT being able to get into those tight corners and "see" the tungsten or the puddle. the advent of the pyrex cup came along to aleviate this problem, but at the cost of a few flaws.... once they get stained form use, you gotta throw em away, cant clean em, you can NOT "walk the cup" with pyrex (cause it'll break) and they are very expensive (in comparison to alumina cups)

try to build and weld the bungs on a motorbike fuel tank with a large lens, and saver cup.... its virtually impossible. when doing "bike" work, i'll run a small lens and a #5 or even a #4 cup to better reach into them tight spots. for everything else, its a large lens and minimum #10 cup...

turbulence from the shielding gasses will swirl around once it hits the parent metals, causing the gasses to integrate with atmospheric gasses and bring them right back into the weld puddle, whats the point of having a shield gas? to keep the atmosphere AWAY..... the diffusers in the lenses "dissipate" the flow so that its kinda soft (per say) and doesnt create that turbulence and therefore better shielding occurs

[ISKI]

Great explanation SIC.
Thanks
Iggy

[Tritium]

Thanks for the explanation Stan. I am learning more and more useful things each day.

Thurmond