I made a pop safety valve using mostly hardware store plumbing fittings. However, I did use my lathe to make the valve & stem and to modify the fitting used as the valve seat and the spring tensioner. All the parts are shown below, and with exception of the spring, they are in assembly order.
The valve & stem are machined from a single piece of 6061 aluminum. At this time, the bare aluminum seats against the brass junction piece (far left) and although leakage is very small, I do want to install a flat silicon washer for better sealing. The pic below shows all the pieces assembled, except for the end cap on the far right.
The current adjustment has the valve opening at 80 psi and closing at about 60 psi. I suspect the repetitive opening and closing shown in the video is a result of air pressure within the 10 meter length of flexible 3/8" hose as it empties and re-pressurizes.
The valve & stem are machined from a single piece of 6061 aluminum. At this time, the bare aluminum seats against the brass junction piece (far left) and although leakage is very small, I do want to install a flat silicon washer for better sealing. The pic below shows all the pieces assembled, except for the end cap on the far right.
The current adjustment has the valve opening at 80 psi and closing at about 60 psi. I suspect the repetitive opening and closing shown in the video is a result of air pressure within the 10 meter length of flexible 3/8" hose as it empties and re-pressurizes.
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