How Much Bending will good hose take?

[hill]

I've got an installation that makes me a little nervous. when I curl my bucket full up/back the 1/4" hoses to my grapple are made to take a bend that would be tight enough to circle a 6" plate. I mean the diameter of a circle they'd make if bent into a circle would be 6" +/- approx. 10%. To make the matter worse the bend begins at the connectors.

Will they stand for that?

To change the situation would involve grinding off the weldment that holds a W.R. Long supplied QD connector plate to the loader bar and making a mess of a neat install, which I'm hoping isn't necessary to do.

i haven't taken pictures, and haven't figured this site's photo adding methods.

 

[J_J]

I've got an installation that makes me a little nervous. when I curl my bucket full up/back the 1/4" hoses to my grapple are made to take a bend that would be tight enough to circle a 6" plate. I mean the diameter of a circle they'd make if bent into a circle would be 6" +/- approx. 10%. To make the matter worse the bend begins at the connectors.

Will they stand for that?

To change the situation would involve grinding off the weldment that holds a W.R. Long supplied QD connector plate to the loader bar and making a mess of a neat install, which I'm hoping isn't necessary to do.

i haven't taken pictures, and haven't figured this site's photo adding methods.

It would depend on several things. R-1 hose has one layer of steel and is probably more flexable than R-2, and R-3 , which have more layers of steel in them. That bend starting at the fitting is not a good thing. They make a live swival for situation like that. See below

 

[Wayne County Hose]

Bend radius varies greatly from not only manufacturer but also model #'s of hose. I have 1/4" two wire with a bend radius of 2" and one wire with a 4" bend radius. Contact the hose manufacturers catalog with the hose part # or the 100R # which should be printed on the hose. # will be something like 100R1, 100R16, and so on. Some hose will tolerate this no problem, others will not. Weatherhead H245 will take a 2" bend radius and still hold 5,000p.s.i.

The hose should absolutely not bend at the connector (crimp). Rule of thumb is take the outside diameter of the hose and double it, this is how far away from a crimp the bend should start. Any less, put on a bend restrictor.

It really depends on how much you use this, how dependable you want it, and what you are willing to spend. Live swivels work well but are pricey. My advice, 1/4" hose is cheap enough. Have spares made that you know will take the bend, run what you have until it blows.

 

[hill]

I was able to use my largest Crescent wrench with a pipe to extend it and slowly bend the plate downward to an angle that aims the hoses below the angle iron on the back of my bucket that was putting the bend on the hoses.

Now the hoses go under and stay straight out of their fittings as the bucket is curled, so I think the immediate problem is solved.

Good info about hose bendability - I hadn't known it, especially that about hose that can take a 2" bend. Could be useful to me soon. Thanks.

 

[Reg]

The minimum bend radius SHOULD be spec'd somewhere.
It would normally be expressed as a multiple of the hose diameter, e.g. min bend radius = 7 times hose diameter. Whether or not you can get access to the specs for THAT hose is another question, but you can probably find the specs for similar hose.

 

[Wayne County Hose]

Minimum hose bend radius has absolutely nothing to do with it's diameter. It has everything to do with the wire spiral construction of the hose. I have 3/8" hydraulic hose here that has a tighter bend radius than 1/4" hose. You can ask where you bought your hose or look on the manufacturers website. You can ask for a catalog where you buy your hoses, all info will be in there. Also good reading while you're dropping the kids off at the pool, or taking the Browns to the superbowl, or.... Catch my drift?

 

[Grrrr]

I haven't taken pictures, and haven't figured this site's photo adding methods.

See if this can help you

Photo Posting How To

 

[john_bud]

Also remember that bending is ok, twisting is to be avoided. The hose should be installed so that its natural bend is the dxn it is forced to bend and that there is no twisting force on it.

jb

 

[Reg]

Minimum hose bend radius has absolutely nothing to do with it's diameter. It has everything to do with the wire spiral construction of the hose. I have 3/8" hydraulic hose here that has a tighter bend radius than 1/4" hose. You can ask where you bought your hose or look on the manufacturers website. You can ask for a catalog where you buy your hoses, all info will be in there. Also good reading while you're dropping the kids off at the pool, or taking the Browns to the superbowl, or.... Catch my drift?

I didn't say that it has anything to do with diameter.
What I did say is that it's minimum bend radius is normally spec'd as a multiplier of it's diameter.
YES, I would expect that to be some function of it's construction.

Other than the fact that you didn't read/understand what I wrote, what is your point ?

 

[Wayne County Hose]

Sorry Reg, I don't know how to do the quotes or I would. But, you wrote:
"It would normally be expressed as a multiple of the hose diameter, e.g. mininum bend radius = 7 times hose diameter."
Last post you wrote:
"I didn't say it has anything to do with diameter."
"What I did say is that it is normally spec'd as a multiplier of it's diameter."
??????????????????

If it doesn't have anything to do with diameter, then how can it normally be spec'd as a multiplier of it's diameter?

I understood exactly what you wrote, which is tragically incorrect. I've been working with hoses 22 years and have never seen any hose bend radius expressed as a multiple of it's diameter. It sounds like you made an educated guess at the correct answer which does sounds logical, but it is not correct.

My point is, I would hate to see some poor guy spend his hard earned money on a hose only to receive bad info and have the hose ruined and have to buy another.

Please don't be offended as I was not taking a shot at you, just trying to steer the gentleman that needed the info in the right direction. Sometimes people think I am being a jerk because I tell it like it is. If that is being a jerk, then I am guilty.