Asking for Checkvalve information

[Ray C]

All,

I would like to setup a helium/argon mix which I saw in one of Jody's WT&T videos. He sets-up a simple "Y" connection with two flow regulators and uses checkvalves to prevent back-flow into the tanks.

Although I have an OA setup (used mainly for heat treating) I don't use checkvalves nor am I familiar with them. I was under the impression that each valve was specific to Oxy or Acy... Which kind should be used for a mixing setup -and does anyone know of some at a reasonable price?

Thanks

Ray

PS: Sorry for always asking questions but not contributing much in return but, in most areas of wedling, I'm in learning mode...

[everlastsupport]

Jackru might be able to help out as he is adding helium.

I found http://www.generant.com/hpcv.shtml and this http://www.hylokusa.com/products/val...ef-valves.aspx

Also this one. http://www.oxycheck.com.au/catalogue...&subcategory=1 for gas.

[X83]

You would need to order the reverse flow check valves by your line thread size and the ones in that video were mounted right after the flowmeter before the Western 411-Y

http://www.westernenterprises.com/enterprises/check_valves.php

http://www.harrisproductsgroup.com/en/Products/Equipment/Accessories/Torch/Check-Valves.aspx

http://victortechnologies.com/IM_Uploads/doclib_4108_Victor%20Safety%20Information%20121-125,%20134_65-2007.pdf

[X83]

Parweld makes the chrome plated brass ones with the hose barb fitting attatched.

http://www.wholesaleweldingsupplies....0check%20valve

[Rodsmachineshop]

these work good inline plastic check valves . i use these for my hydrogen generators when i made them http://www.ebay.com/itm/Aquarium-Ant...item4cfcbc8550 plus there green to match the welder lol

[Rambozo]

Finally, an honest ebay ad; "random delivery"

[X83]

these work good inline plastic check valves . i use these for my hydrogen generators when i made them http://www.ebay.com/itm/Aquarium-Ant...item4cfcbc8550 plus there green to match the welder lol

Cheap but not sure they're going to match the color of my new welder.

[Ray C]

Here's a pic of those HTP regulators (mentioned in this thread) and the check valves (also mentioned earlier). The check valves fit the outlet (9/16" / 18 TPI) and the barbed coupler fits the check valves. Still waiting for the Y connector....

And just for grins, here's a pic of the finished cart with 2 more toolboxes added on the back. They're removable and hang on hooks. The cart serves me well so far.