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Old 16th July 2019, 15:37   #1
macafee2
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Default Air pressure loss not Rover

According to some instructions I have, a 9mm bore hose over 10 meters will lose 0.6 bar of pressure.

What will a 20mm bore hose over 20 meters lose?

I ask so I can take the loss into account when setting my regulator just past the compressor.

thank you

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Old 16th July 2019, 16:24   #2
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In my view, a lot will depend on the flow rate. A closed end will show no pressure drop, open end with no restriction will be another matter.
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Old 17th July 2019, 21:14   #3
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That question has no answer unless it is known what you are going to use the pressure on.
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Old 18th July 2019, 06:55   #4
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Quote:
Originally Posted by COLVERT View Post
That question has no answer unless it is known what you are going to use the pressure on.
I don't understand, can you explain? It will be used on air tools
that need 6.8 bar

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Old 18th July 2019, 15:20   #5
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You won't get a power drop with a 20 mm hose unless you are going to use a GIGANTIC power tool.----

Just set your gauge at the tools rated power requirement.


PS. You could use a road jack hammer with a 20 mm hose----
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Old 18th July 2019, 18:20   #6
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There is an online calculator for pressure loss if you can make sense of of
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Old 18th July 2019, 18:23   #7
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Quote:
Originally Posted by stevestrat View Post
There is an online calculator for pressure loss if you can make sense of of
blew my mind just looking at it

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Old 18th July 2019, 18:25   #8
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Probably quite straightforward if you know what they were taking about!
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