Shop Vac, Cyclone and PRV

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paulrbarnard

Established Member
UKW Supporter
Joined
5 Mar 2017
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Location
Shepton Mallet, UK
There has been quite a bit of discussion recently about cyclones and pressure relief valves. I've not had a PRV in my shop vac powered setup. I have a flimsy plastic bin which I have fitted out with strengthening webs.
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It works well enough but I thought I would make a PRV using my 3D printer. I drew it up in TurboCAD and printed out the parts last night
tempImageX0KOwd.jpg

I glued a bit of foam to the washer
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And turned a thumbscrew to adjust the spring tension. The 6mm threaded rod is loctited into a captive nut in the washer part.
tempImagedBtFRb.jpg

And here it is working. The vacuum is very loud you might want to turn your volume down before playing the video...

 
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