Valve
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Guys, what’s the difference between a valve that allows fluid to enter at a lower level and exit at a higher level, and one that allows fluid to enter at a higher level and exit at a lower level? :)
It’s best not to get stuck on this old-fashioned rhetoric. The air intake direction of the valve is related to the sealing preload of the valve port. It is related to the pressure difference formed on both sides of the valve core when the valve is open, which affects the opening resistance. Mock language, for reference only.
This post was last edited by Concert Group 1385774177 on 2022-10-19 at 10:29; a table was prepared for you.
The difference lies in the direction of the force exerted by the medium on the sealing surface when the valve is closed. Different operating conditions determine different types of valve internals, and since the valve body needs to accommodate these internals, there are two configurations: low inlet and high outlet, and high inlet and low outlet. Actually, this isn’t that important; during analysis, the focus is mainly on the stress conditions of the valve internals at various positions along their travel.