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ft. lbs. to PSI

Posted: Tue Dec 09, 2008 9:08 pm
by jitup
Ok I need to figure out how many psi 50 ft lbs is
acording to google
ft lbs * 12^2 = psi
so
ft lbs * 144 =psi
50 ft lbs *144= 7200 psi
Is this correct, it is the rating on a QEV?

Posted: Tue Dec 09, 2008 9:09 pm
by FishBoy
this is what I always use- http://www.digitaldutch.com/unitconverter/

I don't know what a QEV's rating is.

Posted: Tue Dec 09, 2008 9:13 pm
by jitup
I am sorry let me clarify. They claim the ration is 50 ft lbs.
I was wondering if my calculations are correct and if the conversion factor is right.
the link dose not have ft lbs to psi

Posted: Tue Dec 09, 2008 9:39 pm
by Hotwired
What the holy hell monkey of doom does 50 foot pounds of force have to do with a QEV pressure rating?

It's comparable to saying it has a rating of 67.79 joules... ???

Is this on a website or somewhere interweb visible?

The closest likely symbol is lbf/in2 which is itself just psi.

Posted: Tue Dec 09, 2008 10:00 pm
by jitup
no, I found a QEV used in the newspaper and the guy said it had a 50 ft lb rateing and I also thought it was strange. this is what the guy told me.
it has a 3/4 in inilet an out let
the pressure rating is 50 ft. lbs.

he could be mistaken, but I found it unlikely that the QEV only had a rating of 50 psi, yet I doubt it can handle 7200 psi. If any body could help be explaining this to me I would much appreaciate it.

Posted: Tue Dec 09, 2008 11:21 pm
by Gippeto
Get a make and model number. Do a google search on it.

Posted: Wed Dec 10, 2008 1:18 am
by SpudBlaster15
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Posted: Wed Dec 10, 2008 1:23 am
by MrCrowley
50 ft lb
Maybe he mixed it up with pounds per square inch? And instead thought of pounds per square...foot :lol:

Posted: Wed Dec 10, 2008 1:53 am
by SpudBlaster15
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Posted: Wed Dec 10, 2008 2:11 am
by MrCrowley
Coupled with my previous theory, maybe there was a misprint and he also meant 150? :roll: :)

Posted: Wed Dec 10, 2008 7:29 am
by psycix
or he meant 50 bar.

Posted: Wed Dec 10, 2008 9:33 am
by D_Hall
psycix wrote:or he meant 50 bar.
And hey, how do you apply torque? With a cheater bar!