on board air
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Logistics Pro
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
I made a tank because more than psi I was worried about volume. I just used 6" pipe and welded all the fittings I needed it to have. I'm running 140psi and if my calculations are correct I'm at 6.6 gallons. It runs the width of my bed and I have it mounted to the bed floor as close as I could get to the front of the bed. I did loose some bed space but it's well worth it. From there I will be running a quick disconnect to both sides of the truck, I have only installed one as of now. I keep a 20' or so air line under the rear seat.
I do some camping and have an impact in the camper along with a longer hose in case something happens that requires air. It's never fun being on the side of the road with a flat...
I can post a picture if you would like. I'm debating getting a second pump to run next to my first one so I'll have faster filling capacity
I do some camping and have an impact in the camper along with a longer hose in case something happens that requires air. It's never fun being on the side of the road with a flat...
I can post a picture if you would like. I'm debating getting a second pump to run next to my first one so I'll have faster filling capacity
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
I was planning on tigging it but decided to just stick it. Since the pipe cap and plugs are all 316 I used 316... no need for stainless but it was laying around.
I probably should have dimpled the ends but I didn't bother because it's low pressure at 140 psi. I'm certified stick/tig/mig position but I'll be the first to say these welds are not pretty haha! Give me a few and I'll upload a picture
I probably should have dimpled the ends but I didn't bother because it's low pressure at 140 psi. I'm certified stick/tig/mig position but I'll be the first to say these welds are not pretty haha! Give me a few and I'll upload a picture
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
I haven't made it pretty yet or came close to being done plumbing it. For now I have a quick disconnect ran to the inside drivers side rear fender well for easy access. I had a pump laying around and all the other parts you see too so I basically made the tank for free
FTE-Spread The Knowledge
Joined: Feb 2008
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We ran #4 wire back to compressors. The alternator is a BNR 250 amp ($150). The check valve is from NAPA (KN23010...$27.49)
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Logistics Pro
Joined: Aug 2009
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From: Arizona
Thanks Mike, one question though, the one way valve from Napa states 3/8" port size. Is this the same as 1/4" NPT? When I was checking out all the fittings on my tank I needed a 90 and i Grabbed a brass 1/4" NPT one out of my parts and it fits.
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Logistics Pro
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
OK I see Napa even has 1/4 NPT valves. I was thinking they were using a different measurement or something. You know, like some guys confuse pipe size and tubing size. Also, online descriptions of products are mostly terrible, can't really count on them as correct. I would have never thought of using an air brake valve though, great idea.
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Logistics Pro
Joined: Aug 2005
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From: Morgan Hill, CA
https://powertank.com/cat-off-road
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
Yes, and C02 last about 3 to 4 times longer in tank usage then air. Use to use C02 in under ground work years back. Ran 1/2 impacts great. Went to battery impacts later.
You have to get the tanks re-certified every 5 years I believe. Never tried it for tires, should work great. Air bags to if it don't pop the lines, it's cold. Plus don't get in a enclosed area up close, you can't breath.
You have to get the tanks re-certified every 5 years I believe. Never tried it for tires, should work great. Air bags to if it don't pop the lines, it's cold. Plus don't get in a enclosed area up close, you can't breath.
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Logistics Pro
Joined: Aug 2009
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Likes: 324
From: Arizona
Curious why the web site selling them offers no clue as to how many fills you get on a tank. I don't know who would fill them, most welding suppliers no longer fill cylinders they just exchange them. I live in a city of over a million and I don't know of any welding supply here that refills customer owned cylinders.
edit: after some searching on the web I found a chart that says I can air up one 285 from 15 lbs to 55 lbs about 10 times on a 10 lb tank. I still want to know who will refill it though. and for how much. I found a DIY site that uses a regular welding supply cylinder system that costs about $50 to build but not sure about transporting high pressure cylinders all over the place especially off road, what if there's a wreck? Some guys are saying to use a nitrogen paintball cylinder, waaaaay high pressures and can just about fit in the glove box......Interesting
edit: after some searching on the web I found a chart that says I can air up one 285 from 15 lbs to 55 lbs about 10 times on a 10 lb tank. I still want to know who will refill it though. and for how much. I found a DIY site that uses a regular welding supply cylinder system that costs about $50 to build but not sure about transporting high pressure cylinders all over the place especially off road, what if there's a wreck? Some guys are saying to use a nitrogen paintball cylinder, waaaaay high pressures and can just about fit in the glove box......Interesting
Logistics Pro
Joined: Nov 2006
Posts: 3,674
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From: Fallon,NV & Bainbridge OH
First off the cylinders are exchanged for another customer owned bottle and, at least the places I have had to exchange doing different jobs, no longer charge for hydro. Another great place for exchanging CO2 bottles(tanks) are hydroponic stores. Those guys don't ever want to be out of CO2 (might ruin their crop) and I have found their prices cheaper than the welding shops.
Your worried about carrying a high pressure cylinder in your truck and then talk about putting one in the glove box, like Norco said these gasses displace oxygen so the last place I want one is in the cab. The 4 wheel guys around here who run the Rubicon and Fordyce Trails carry them all the time in their rigs with no issues.
Your worried about carrying a high pressure cylinder in your truck and then talk about putting one in the glove box, like Norco said these gasses displace oxygen so the last place I want one is in the cab. The 4 wheel guys around here who run the Rubicon and Fordyce Trails carry them all the time in their rigs with no issues.
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Logistics Pro
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
First off the cylinders are exchanged for another customer owned bottle and, at least the places I have had to exchange doing different jobs, no longer charge for hydro. Another great place for exchanging CO2 bottles(tanks) are hydroponic stores. Those guys don't ever want to be out of CO2 (might ruin their crop) and I have found their prices cheaper than the welding shops.
Your worried about carrying a high pressure cylinder in your truck and then talk about putting one in the glove box, like Norco said these gasses displace oxygen so the last place I want one is in the cab. The 4 wheel guys around here who run the Rubicon and Fordyce Trails carry them all the time in their rigs with no issues.
Your worried about carrying a high pressure cylinder in your truck and then talk about putting one in the glove box, like Norco said these gasses displace oxygen so the last place I want one is in the cab. The 4 wheel guys around here who run the Rubicon and Fordyce Trails carry them all the time in their rigs with no issues.