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View Full Version : PSI coverted to Ft/Lbs

Unregistered
04-04-2008, 02:55 PM
Is there a formula to convert psi to ft/lbs?

JohnS
04-04-2008, 04:23 PM
No, they are not compatible units.

If you can give us more detail on what you are trying to do, we may be able to help, but it would be more of an analysis than a conversion.

Unregistered
10-22-2008, 11:35 AM
I'm going to use a hydraulic torque wrench that reads in psi but the torque I'm looking for is in ft-lbs.

Mrs X
10-23-2008, 11:30 AM
I'm going to use a hydraulic torque wrench that reads in psi but the torque I'm looking for is in ft-lbs.
You would have to set the hydraulic pressure so that you are getting the desired tightening. - Do you have a normal torque wrench that does the job properly that you can standardise or compare the hydraulic wrench against?

Mrs X
10-23-2008, 11:32 AM
I've not put that very well, hope you know what it means. :o

Unregistered
06-15-2009, 09:17 PM
No, they are not compatible units.

If you can give us more detail on what you are trying to do, we may be able to help, but it would be more of an analysis than a conversion.
If im using a torquing machine which has the capacity of 10,000 psi or 700 bar
how much is the equivalent in ft-lbs or newton-meter.

Unregistered
09-22-2010, 09:46 PM
is there a formula to convert psi to ft/lbs?

how many pounds(lbs) is 19,000 p.s.i.?

JohnS
09-23-2010, 03:13 AM
how many pounds(lbs) is 19,000 p.s.i.?

It depends on the area the pressure acts on.

Unregistered
01-24-2011, 11:29 PM
on water pressure, I need to try to figure out how to know how much tongue i am getting as a ft lbs measurement if possible instead of the psi reading. I am running at 15,000 psi in a sealed system running 1/2" id pipe and my pump is running at 2000 rpm. is there a way to figure this, i'm at a loss trying to figure it. thanks, Daniel

Unregistered
04-01-2011, 02:20 PM
I'm going to use a hydraulic torque wrench that reads in psi but the torque I'm looking for is in ft-lbs.

I'm using a hydraulic torque wrench that reads in psi but the torque I'm looking for is in ft lbs

Unregistered
08-12-2011, 02:06 AM
on water pressure, I need to try to figure out how to know how much tongue i am getting as a ft lbs measurement if possible instead of the psi reading. I am running at 15,000 psi in a sealed system running 1/2" id pipe and my pump is running at 2000 rpm. is there a way to figure this, i'm at a loss trying to figure it. thanks, Daniel

(pounds per square inch - foot pounds)

1 foot = 12 inches

1 foot squared = 144 inches squared

15'000 psi * 0.5 inches = 30'000 psi

30'000 psi /144 inches to create foot squared = 208.333333 ft lbs

Unregistered
08-23-2011, 10:25 PM
Try: (hyd. Psi) x (wrench length in feet) x 9 = ft. Lbs.

Unregistered
11-17-2011, 07:10 AM
if I have 5250 ft/lbs @ 4500 psi of hydraulic pressure
How many ft/lbs would i have @ 3500 psi?

Unregistered
12-11-2011, 07:24 PM
No, they are not compatible units.

If you can give us more detail on what you are trying to do, we may be able to help, but it would be more of an analysis than a conversion.

I"m trying to see if my 125 psi compressor will have enough to make a torque of 80 ft lbs.

JohnS
12-12-2011, 02:05 AM
I"m trying to see if my 125 psi compressor will have enough to make a torque of 80 ft lbs.

That will depend on the characteristics of the air tool used and its air requirements to reach its rated output.

Unregistered
03-16-2012, 08:25 AM
i have a clamp system to glue up wood, it is 1' by 4' and has 10 clamping bolts. If I tighten each bolt to 25 foot pounds of preasure, what is the PSI?

Flatman
11-10-2012, 07:18 AM
Yes, you can convert the foot-pound force (ft-lbf) to pound per square inch (psi). The conversion is foot-pound force divided by volume times 12 equaling pound per square inch (ft-lbf /in3x 12 = psi). Mathematically this is dF/d3 → F/d2, which is equal to psi.

Rickie09
01-12-2013, 07:59 AM
I measured the length of my torque wrench which is adjustable to 250 foot lbs. and it is 21" from the center of the socket holder to the end of the handle. If yours is comparable in length than perhaps we can assume that 250 foot lbs. is approximately equivalent to 10000 psi. I have a similar situation in which I need to determine how much psi is in a foot pound so I would appreciate your feedback, especially the length of the torque wrench.

Unregistered
11-20-2013, 10:19 AM
i need to know if there is a formula to convert hydraulic psi to ft lbs of torque, i have a buck on unit that screws couplings on to heat treated pipe, i need to hit certain torques in order to keep the work piece in tolerance for the oil rigs, problem is, i dont have a good way of deciphering how much torque that i am using. is there a way to convert psi to torque??