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Hose reel questions/concerns

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Forum topic by DeltaDaddy posted 01-08-2014 03:21 AM 839 views 0 times favorited 4 replies Add to Favorites Watch
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DeltaDaddy

52 posts in 1114 days


01-08-2014 03:21 AM

Topic tags/keywords: air hose hose reel

Hey LJ’s, Could you help me out? I just purchased a reelworks 25’ mini hose reel from Northern Tool the other day along with a new piggyback regulator. when I tested out the blower attached to the hose it had a significantly lower pressure than the regulator was set for. then the DA sander test… it barely spun. When I attached my old hose again the pressure was great so its not the regulator, its the hose reel. Its a 1/4” i.d. hose on the reel. I was assuming since all of the hose/tool connectors are 1/4” that the 1/4” hose i.d. would have no effect on pressure. I guess I was wrong. I am returning the reel and was going to upgrade to a 3/8” hose reel. I read that there can be a pressure drop when using hose reels but wasn’t expecting that much. am I wasting my time getting the 3/8” reel?

Thanks in advance, Nick

-- Take it apart to see how it works


4 replies so far

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Grandpa

3256 posts in 2136 days


#1 posted 01-08-2014 03:30 AM

I know of a situation where my friend lived in a rural area. This was before satellite television. He had a 60 break over pole and wanted to paint it before he set it up near his house. He ran about 150 ft of hose from his air compressor in the shop out to the pole and got his paint gun out. He didn’t have enough air to run his paint gun. This is the old fashioned gun that used about 40 psi with not too much volume. Anyway he ended up getting some large hoses and using those near the compressor. He bought a regulator with a belt clip on it. This was recommended by someone in the auto paint business I believe. He ran mx pressure to his belt regulator then regulated the air to 40 psi there. Worked fine. I can see problems if you leave the 25 ft. hose coiled on the reel. Water hardly flows through my hose reel to my garden. Larger hoses or pipes have less friction as we always talk about with dust collection.

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hydro

208 posts in 1212 days


#2 posted 01-08-2014 01:17 PM

First, I sell and specify these types of components for a living and I see this issue all the time. Hose reels have a huge pressure drop, caused by the right angle fittings and the length of the hose. Also, a DA sander takes a LOT of air volume to run correctly. The problem is not pressure, but the volume of air that is able to get to the tool. You have a serious mis-match there with that 1/4” hose.

To run a DA Sander you will need to have a realistic 15 CFM at a 90 PSI at the tool, while the tool is running. Assuming your compressor can continuously provide that volume, I would recommend a 3/8” hose on the reel and as short a length as you can get away with. Check out the “European High Flow” couplers and fittings as well. They have proved very successful for my customers in rotary tool applications such as sanding. You can see them here: http://www.prevostusa.com/index.php

-- Minnesota Woodworkers Guild, Past President, Lifetime member.

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bigblockyeti

3665 posts in 1181 days


#3 posted 01-08-2014 02:31 PM

The pressure drop over only 25’ with a 1/4” ID hose can be significant. I was running my DA off a 1/4” hose and it doing ok, not great, just ok and I had the regulator set at 150PSI. It was running quite a bit slower than if I were running a 25’ long 1/2” hose with the regulator set at 80PSI. You will experience more pressure drop with some of the hose still on the reel than having it all pulled out and routed fairly straight. a 1/4” hose can be used, but you’ll have to set your regulator pressure MUCH higher and use your judgment or a pressure gauge on the tool handle to determine your actual operating pressure.

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DeltaDaddy

52 posts in 1114 days


#4 posted 01-09-2014 12:13 AM

Thanks for the replies guys. I think I am going to try my luck with a 25’ or 50’ – 3/8” hose reel and see how that works. Hydro- is there a gauge I can get to measure cfm’s at the tool? my other concern is with my spray gun. I turn down the pressure to 40-50 psi but if the cfm’s decrease that much I wont get much fluid out of the gun.

-- Take it apart to see how it works

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