Does anyone know of any manufacturers that make a "live swivel" vacuum fittings? What I mean by "live swivel" is that the fitting can swivel freely when under a vacuum.
Does anyone have any experience in designing low pressure (40 psi water, 80 psi air) valves using small o-rings (-001, -002, -003 sizes)?
I am having off and on again leakage issues since you have to use low squeeze to be able to still move the valve (if you use min recommended of at least .007"...
