Reply by runswithscissors

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Posted on Connecting dust collector hoses

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2750 posts in 2019 days

#1 posted 11-26-2012 05:01 AM

I have no idea why the male fittings for ductwork aren’t a uniform (and correct) size. I recently had a situation where the coupling was a struggle to put on or take off, but the el fitting was an easy slip on. From the same vendor. To make the coupling work reasonably well, I sanded one end to a smaller diameter by rotating against my 6 inch stationary belt sander. Worked okay. I only reduced one end, as the other could stay put.
For quick switch over from one machine to another, an annoyance is having to loosen and tighten hose clamps. I cut standard 4” hose clamps, and rivet the 2 parts of a draw latch onto the resulting ends. Now I can quickly and easily swap between machines. I leave the adjusting screw in place, so the clamp can be fine tuned to the variable diameter fittings. I’m even thinking of wiring the clamps onto the ends of duct hose that gets swapped pretty often, so they don’t drop off while the tension is released during transition.

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