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More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 08:06
by dave friday
Well yesterday I managed to split a 20 bar hydrolic hose that i'm using to feed a front mounted oil cooler [I did rev to 4500rpm after only 5 minuits from cold!].
4.5bar at the sender on the front of the head.
What gives? [yea the hose]
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 09:56
by AdrianC
The label on the hose was lying?
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 10:14
by dave friday
Yea I did wonder(it's Spanish so it's possible).
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 11:01
by California Dreamin
Unless of course the pipe is not oil resistant so went soft through exposure.
Martin
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 12:58
by dave friday
Martin your dead right! I just had a look at a spare bit of hose,it's air hose!!.
So...I've ordered some more of the aeroquip hose.
Ta.
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 17:16
by BOXY
Check it's got an NBR nitrile butyl rubber lined. The old spec for automotive oil hose used to be R3 or R6.
Re: More thar 20bar oil pressure!!?
Posted: 06 Sep 2013, 20:23
by tobydog
Pneumatic hoses tend to be derated pressure wise in relation to temperature.