Air compressor tube/pressure question

[supperfly17]

Hi there,

I just purchased a 50' 3/8 rubber hose for a 5.8 cfm @ 90psi 26 120v gallon compressor. I guess my question is this: Is it true that the longer the rubber tube the less the output of air comes out the end tool (impact gun, etc)?
Let say if I use a 10 ft rubber hose to run a tool, that would be much more efficient then using a 20ft rubber hose? Am I correct?

I bought this 50' foot hose reel, and its quite useful, but i would only ever use 20' of it, so im wondering if I should cut it in half to make it more efficient?

Thanks.

 

[The Cobbler]

the longer the run the more loss of volume you have. it's called friction loss.
If you're only going to use 20" , I would cut it in half, make up the other hose & keep it as en extension if ever needed

 

[supperfly17]

Thank you for the reply. So cutting in half is acceptable? Put the extension on and tighten it with a perforated ring clamp right? nothing else special?

 

[larry_g]

Hi there,

I just purchased a 50' 3/8 rubber hose for a 5.8 cfm @ 90psi 26 120v gallon compressor. I guess my question is this: Is it true that the longer the rubber tube the less the output of air comes out the end tool (impact gun, etc)?
Let say if I use a 10 ft rubber hose to run a tool, that would be much more efficient then using a 20ft rubber hose? Am I correct?

I bought this 50' foot hose reel, and its quite useful, but i would only ever use 20' of it, so im wondering if I should cut it in half to make it more efficient?

Thanks.

I would suggest that you use it as is and if you notice that tools seem underpowered then try cutting it down. Before cutting I would suggest that you get a pressure gauge you can connect inline at the tool to see if your loosing a lot of pressure . To test, plug your pressure gauge into the plug before the reel and test the tool at that point, then do the same thing with the hose reel 'tween the two. The difference in the readings at the two test points is loss through the line. Develop your own numbers to determine if the lose is acceptable or not. The lose you experience is entirely dependent on the air consumption of the tool your using.

lg
no neat sig line

 

[supperfly17]

I would suggest that you use it as is and if you notice that tools seem underpowered then try cutting it down. Before cutting I would suggest that you get a pressure gauge you can connect inline at the tool to see if your loosing a lot of pressure . To test, plug your pressure gauge into the plug before the reel and test the tool at that point, then do the same thing with the hose reel 'tween the two. The difference in the readings at the two test points is loss through the line. Develop your own numbers to determine if the lose is acceptable or not. The lose you experience is entirely dependent on the air consumption of the tool your using.

lg
no neat sig line

Thank you.