Value V1

needed a pressure relief valve for my vacuum setup with a cyclone .

I wanted it threaded so make an easier fit, and just smaller than 32mm as A. I think it's plenty big and B. I have a circular hole cutter which is 32mm :)

So here is my design, comes in long and short threads (to fit various containers) and a washer plate at M3 M4 and M5 bolt size to make a snug and as air tight as I could on the screw fittings. I ended up using the M4 version for mine , pic attached)
you'll need a machine screw , few nuts and washers and a sprint to complete the build.

So far its working great, and I hope you'll like it.

Cheers,
dz