Mon Jun 01, 2015 1:13 am
Additionally, I saw that you mentioned that you were not sure if the valve worked. A super easy way to test this on land is to take a tank with about 600 psi in it, flip the j valve lever in the up (reserve active) position, then open the tank in your garage or driveway. You will hear the tank bleed down like normal, then you will hear it get much quieter as the reserve spring force and force of the air in the tank approach being equal, which will restrict air flow to the opening of the valve. If you close the main valve knob, then use a pressure checker or regulator, then you will have an idea when your particular valve begins to exert enough spring pressure to stop air flow. You can also test this under water.
If the valve is out of the tank you can always blow through the dip tube with the valve open and move the j valve lever to see if it restricts air flow that way as well.
This is not a technical explanation. If you would like one, then again I would refer you to one of the engineers here.
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