Yes, the pressure inside the valve will be lower than atmospheric pressure.
Could the weight of a piston prevent itself from lifting up in a lower pressure area? The weight of the piston is about 240 grams.
Hi everyone, I'm thinking about building a piston type valve and placing it near the inlet side of a pump but my concern is that the piston may rise up due to suction at the inlet which I don't want to happen.
I'd really appreciate it if anyone could assess this drawing and determine if this...