[sportster]

Responses to my last thread (viewtopic.php?f=5&t=14184) convinced me I should give gas lens a try........ and go for "better welds" vs expecting much in gas savings. I'm listening.

Going down this path, I see there's "gas lens" & "gas saver lens" available from CK Worldwide.

These seem functionally equivalent, with minor differences such as "screw on cups" vs "push on cups", pricing, etc. ..... but as a rookie TIG welder, maybe I'm missing something else.

So, before I go out & buy something, I guess my simplified question is:

Which one is likely to produce better welds ? or are the results of either, more or less equal ?

[cj737]

Screw on cups are generally alumina-type (pink) and ceramic. Push-on cups tend to be pyrex. Typically, the gas lenses from CK support using either, the difference being an O-ring is used for the Pyrex cups due to the absence of internal threads.

Pyrex cups work really well in tight spots, offering a bit more see-thru clarity, or with long stick-outs required where the cup obstructs your vision.

[LtBadd]

The ceramic cups are inexpensive and sooner or later you'll probably break one, buy several to keep on hand.

I typically use a #8 cup on 98% of what I do, if you're learning the 8 would be my recommendation, which goes on the gas lens.

You can buy "cheap" imports but I'd really suggest staying with CK or other major brand, for the price difference (which isn't much) stay with known quality parts.

[VA-Sawyer]

I agree, a #7 or #8 pink cup for gas lens work. Available from the Weldmonger store.

[tweake]

Responses to my last thread (viewtopic.php?f=5&t=14184) convinced me I should give gas lens a try........ and go for "better welds" vs expecting much in gas savings. I'm listening.

Going down this path, I see there's "gas lens" & "gas saver lens" available from CK Worldwide.

they are the same thing.
however there is a couple of different types.
unfortunately i have not got my head around all the different parts numbers etc.
but there is two main gas lens. the stubby kit, which jody sells, and also a long gas lens.
the main difference is short cups vers long cups. which ever you feel comfortable using.
i have both, i prefer the stubby so i can get into tight places but also easier for me to hold and slide along with.

i have always wondered if the long one would have better tungsten cooling.

[sportster]

they are the same thing.
however there is a couple of different types.
unfortunately i have not got my head around all the different parts numbers etc.

Yeah, I tend to agree (but I'm a rookie so me agreeing doesn't count for much ). There's a lot of different part numbers when looking at just the "gas lens" vs "gas saver lens". This diagram from CK seems to show what p/n works with what p/n. https://www.ckworldwide.com/13n-(2-series).html In my case, I'm interested in just the #20 torch parts.

In reviewing the CK diagram there seems to be substantial differences in how the parts assemble. Specifically I'm referring to the assembly of their "gas lens" nomenclature parts vs "gas saver lens" nomenclature parts.

BUT if, functionally, I can expect to achieve the same weld results with either the "gas lens" vs "gas saver lens", then I'll just pick one & go with it. I think I'm at that point now. Thanks to all responders for your valuable input.

[LtBadd]

Well the gas lens is very different(as you said) then the gas saver, you may achieve the same result but the cups, collet bodies and heat shield are different. The collet seems to be the same part.

2 series gas saver

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2 series gas lens

snip_20190426182959.jpg (27.91 KiB) Viewed 3035 times