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Air/Gas Inlet Splitter



cracer250
02-08-2008, 01:33 PM
OK, anyone have any tips on what I will need to put a splitter on my air/gas inlet connection for the multi-pupose units? I have heard of others doing this so you don't have to keep switching from air to gas supply everytime you want to change from plasma to tig. It's a real pain and a design flaw in these machines if you ask me. I'm wondering what thread the inlet connector is? I bet you could use a T splitter and put a check valve in so only one line is open at a time.

Gadget
02-08-2008, 03:23 PM
I just used the air quick disconnect pigtail on the welder and a connector on the argon and air filter lines. I can shoot a photo or two if you want to see the setup. It only takes a second to switch back and forth.
Gadget

cracer250
02-13-2008, 08:45 AM
Can you send some pictures to me? clevely@netzero.net. Only thing I can think of that's bad with your idea is possibility for leaks. I'm more worried about the argon. Those quick connects tend to be crappy in my experiences.

Gadget
02-13-2008, 05:02 PM
I will take some shots this weekend. I haven't had any leakage with the connections. The flow meter is on the upwind side and if there were leaks it would show at the meter. I will post the photos here so others can see them too.
Gadget

Photo
02-14-2008, 07:11 PM
cracer,

Here's a pic of my setup. Argon enters at the top, compressed air from the left. Gasses flow down into the back of the unit.

http://rides.webshots.com/photo/2808030 ... 0200nzpaPE (http://rides.webshots.com/photo/2808030660098190200nzpaPE)

Lane

cracer250
02-15-2008, 02:31 PM
Great, I'm going to do something similar to this. What did you use to connect the hoses to the fittings? Are they barb type fittings?

Gadget
02-16-2008, 09:43 AM
Here is my setup for Air/Gas to the LS 160P

Gadget

Photo
02-16-2008, 06:49 PM
cracer,

Yes, I used 3/8" air hose with barb type fittings and a hose clamp where-ever needed. The hoses with the black ends were the original ends of an inexpensive air hose that I bought to cut up for this project. I added the 2 ball valves to isolate each leg of the line so that I would not lose Argon gas through the air regulator, or force compressed air through the argon regulator. They work very well.

Lane

colocwboy
02-17-2008, 03:09 PM
Hey gadget what kind of cart are you using for your unit to set on? does it have drawers to put hoses and consumables in? post more pics if you have them.

Gadget
02-17-2008, 04:08 PM
Hey gadget what kind of cart are you using for your unit to set on? does it have drawers to put hoses and consumables in? post more pics if you have them.

CC,
I bought a three shelf cart at Harbor Frieght. I cut a hole in the top two shelves for the argon tank. I hung the front of the welder over the front lip of the top shelf to allow easy access to all cables and controls. The remaining area of the bottom shelves hold the cables, consumables, gloves and other items. I will get some photos next week showing the complete layout.
Cart can be viewed here http://www.harborfreight.com/cpi/ctaf/d ... umber=6650 (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=6650)

Gadget

colocwboy
02-18-2008, 06:23 PM
Thanks for the pics gadget I found a similar cart when I went to harbor freight to find the one you have then I put it together and turned the top shelf upside down so the welder will sit on top without leaning on the edge. Just an FYI

cracer250
02-19-2008, 07:35 AM
OK, I've completed a spitter system similar to Lanes. Works great. I just took some air hose, barb fittings, 2 ball valves, and hose clamps. The argon and air supply are hooked up all the time. Just need to close whichever valve you are not using. I will hopefully be posting some video soon of some tig welding and cutting.

Gadget
02-20-2008, 06:27 PM
Thanks for the pics gadget I found a similar cart when I went to harbor freight to find the one you have then I put it together and turned the top shelf upside down so the welder will sit on top without leaning on the edge. Just an FYI
Good idea on the top shelf CC, I will have to switch mine around.
Gadget

JonB1974
05-16-2008, 02:41 PM
Hi all,
On the subject of a gas/inlet splitter I was trying to find the simplest method and it struck me.......

Bronze 3-Way Diverting Ball Valves

http://www.mcmaster.com/nav/enter.asp?pagenum=0402

http://i36.photobucket.com/albums/e12/DromSeciba/4373kp1l.gif

http://i36.photobucket.com/albums/e12/DromSeciba/4373kl1l.gif

http://i36.photobucket.com/albums/e12/DromSeciba/4373kl2l.gif

http://i36.photobucket.com/albums/e12/DromSeciba/4373kl3l.gif

Maximum Pressure: W.O.G. (water, oil, inert gas): 400 psi @ 100 F ; W.S.P. (working steam pressure): Not rated
Vacuum Rating: Not rated
Temperature Range: -20 to +450 F

Ports: 1/4" to 1/2": Full; 3/4" to 2": Standard


Flow from center inlet can be sent to either of the side ports at full flow, or to both side ports simultaneously at a reduced flow. Body is bronze, ball is chrome-plated brass, and stem is blowout-proof brass. Seats and packing are glass-filled PTFE. Body seal is PTFE. The valves have two mounting holes and a zinc-plated steel lever handle with a vinyl grip. Connections: NPT female.

Pipe End-to- Mounting
Size End Lg. Holes product# Each

1/4" 2 5/16" 10-24 4373K51 $18.51

WAHLAH! I thought it would be the simplest method ......one valve, mark it , and all threaded connections so no leaks. Hope it helps. :D

Nazrac
05-21-2008, 05:13 PM
I went a different route. I mounted the water seperator/regulator on the back of my welder. I put a standard 3/8" male air hose fitting on the air regulator and ran a hose from the regulator into the welder. Then I put a 6' hose with a 3/8" female air hose fitting on my air meter coming off of my argon bottle.

When I need shop air to plasma cut, I hook up the shop air to the regulator.

When I need argon, I disconnect the shop air and I attach the argon hose. I have my regulator set to 60 psi which is more than enough to flow the argon needed for welding. The argon is then regulated by the air meter on the bottle.

It is that easy.

Gadget
05-21-2008, 06:23 PM
Naz,
The only negative thing I can think of with that method is that the regulator/water filter has a drain on the bottom that will let some of the argon escape. Argon is pretty expensive or at least too expensive to let is leak out.
Gadget

henrym
05-26-2009, 02:07 AM
the regulator/water filter has a drain on the bottom that will let some of the argon escape.


ya know, Gadget, that wouldn't have occurred to me if you didn't write it out here :lol:

for the longest time, my air filter had a little hiss that seriously annoyed me, because I thought that the leak was from a threaded connection... wrench wrench wrench... no good.

after reading that, I checked the drain at the bottom of the poly cup and there is air gently hissing out!

before, I thought that the thing needed to be drained manually, but since it opens outward, 50 psi opens the valve a crack so water can never accumulate.


GOOD TO KNOW :smile:

Henry

KHK
05-26-2009, 08:27 AM
henrym, my regulator bowl has never discharged, and it never has a hiss, even at 75 psi. It is only discharges when water is in the bowl. I think that you have some debre in the bowl valve.

For hook up of the three way valve click on KHK and check the right side of my profile.

arandall
05-26-2009, 10:40 AM
Cracer:

Here is a photo of my Gas Splitter. As you can see, I just used two ball valves, and tee, and some fittings. The argon inlet is on the right, and is on the low pressure side of the flow meter. The air inlet is on the right, with a quick connect for the supply going into the regulator.
Hope this helps.

Cheers,
Art R.