tegwin
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| posted on 13/3/13 at 03:51 PM |
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OT: Copper compression fittings pressure limit?
Anyone have any idea what the rated pressure limit of a compression type joint is on a copper pipe system?
I am looking at running around 150-200PSI diesel in a 1/4" copper pipe.... I do NOT want it to let go! 
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BenB
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| posted on 13/3/13 at 03:55 PM |
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I'd worry more about the pipe than the fitting- copper pipe is pretty soft!
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phelpsa
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| posted on 13/3/13 at 04:10 PM |
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Brakes will see in excess of 1000psi with copper compression fittings.
200psi is nothing at all really. An air compressor will get near that!
[Edited on 13-3-13 by phelpsa]
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tegwin
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| posted on 13/3/13 at 04:37 PM |
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Had totally forgotten about brake systems! Looks like I should be ok 
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Theshed
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| posted on 13/3/13 at 04:42 PM |
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Back when I owned a London Taxi you could buy compression fittings to repair the ends of broken injector lines - well over 200psi
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Theshed
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| posted on 13/3/13 at 04:47 PM |
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The interweb says 912 psi for 1/4-inch pipe - so that leaves the fitting......
Olive type fittings are found on all sorts of high pressure pipes - I would think you will be fine
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Theshed
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| posted on 13/3/13 at 04:58 PM |
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Compression fittings for copper pipe
WATER SYSTEMS AND FOOD USE
The olive complies with EN 682 standard
Minimum and maximum working temperature: -25°C, 120°C
Maximum working pressure: 16 bar
GAS AND FLUID HYDROCARBONS SYSTEMS
The olive complies with EN 682 standard
Minimum and maximum working temperature: -15°C, 50°C
Maximum working pressure for gas: 5 bar
Maximum working pressure for hydrocarbons: 16 bar
Might be pushing your luck at 200psi
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renetom
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| posted on 13/3/13 at 05:18 PM |
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Product Information
Soft Copper Brake Piping 1/4 x 25ft. Seamless, 22 Gauge.
Conforms to BS EN 12449
Outside Dia 1/4" 6.4mm
Wall Thickness 0.028" 0.71mm
Length 25 feet 7.62m
Max working Pressure 1334 psi 92 bar
25ft Roll
See drop down for bulk trade discounts
Price: £11.10
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tegwin
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| posted on 13/3/13 at 05:20 PM |
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Bang on, thanks for the details! I was looking earlier and my google skills failed me!
Looks like that is one less thing to have to worry about..
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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