Im having trouble differentiating between check valve and regulator. Isn't the pressure in plenum regulated by the spring on the tank side?
Isn't the pressure in plenum regulated by the spring on the tank side?
The Belleville stack is vented to the atm its just not visible in the image, new image is attached. The position of it is not ideal but that can be adjusted once I did all the force calculations and design is refined. As a first step I just wanted to get to grips with regulators and valves operations. Regarding sealing, well, thats kinda the issue, would like to remove as much o-rings as possible. Regulator has o-rings but the valve does not and Im worried about tolerances being to lose when trying to make it. I can add them to the valve but would need to increase the overall length of the valve and different spring with larger travel. Looking at it the valve assembly is the dodgiest one and will most certainly need an redesign with o-rings or something different. Would love to use a loose fit with high tolerance. Something like shown in High precision air bearing CNC lathe and grinder video by Dan Gelbart (cant post link but it should be easy to find it on youtube)