Posted by NCWayne on July 03, 2008 at 06:01:28 from (166.82.164.236):
In Reply to: hydraulic crimper posted by sherburne on July 03, 2008 at 05:06:43:
I don't claim to know all the specifics about each brand machine and it's dies nor the different brand of hoses and fittings and dies for each of them. That said I have been a mechanic long enough and had enough hoses of different brands and sizes made over the years to know that the different brands aren't all the same. There are differences in the ways the sleeves grip the hose when crimped, the reinforcing wires in the hoses aren't all wound the same or to the same diameter (and this can greatly effect the grip)there is one wire, two wire, four wire,and six wire hose and fittings for each, the hose itself isn't always the same diameter for a given size, the ID and OD of the sleeves between brands isn't always the same, the crimp pattern isn't always the same (and that's going to be tied in with the thickness of the sleeve, how it's designed to grip the hose, etc), and I'm sure there are other differences I've failed to mention. In other words there are alot of things that effect the strength of the crimp beyond just the final OD. Granted the diameter of the finished crimp is one thing checked when installing the correct fitting onto a hose of the same brand to make sure it is fully crimped and is gripping like it should. In your case I think it would be a worthless measurement because you'd be using dies not designed for the hose and fittings your wanting to use. I'm not going to tell you it won't work, because it might with all or some sizes, but it might now on one or all sizes. What I will say that what your talking about doing is making a connection and then using probably 2000psi plus of hot oil as your test medium. Now me personally that's not really the kind of quality control test I'd want to be involved in. But that's just my .02 on the subject.
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