One way valve is there a kind like this ?
One way valve is there a kind like this ?
(OP)
Is there one way valve that allows a liquid flow in one direction and prevent air flow (under pressure) in the other direction?
Thanks for any help ...
Thanks for any help ...





RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
Other than an automatic air-bleed valve of course, but that's not what the OP is looking for.
As 3DDave says, it's basically a check valve but you may struggle to find one that's 100% leak-proof when used with air.
RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
RE: One way valve is there a kind like this ?
Wouldn't a "one-way" valve prevent any reverse flow, whether gas or liquid?
Mechanical check valves typically operate based on a pressure differential across the valve seal interface. The valve cannot tell the difference between pressure from liquids or gasses.
One way to prevent any entrained air within a liquid from back flowing thru a check valve would be to orient the valve vertically such that any gas bubbles would naturally migrate away from the valve discharge port.
RE: One way valve is there a kind like this ?
https://www.physicsforums.com/threads/one-way-valv...
And on that site: "Marokay - you asked virtually the same question on this forum over a year ago. Have you considered giving up on the project?"
and
https://www.physicsforums.com/threads/valve-that-a...
and
http://www.engineersedge.com/engineering-forum/sho...
and
http://www.thescienceforum.com/mechanical-structur...