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(Snap-on?) Check Valve Types

(Snap-on?) Check Valve Types

(Snap-on?) Check Valve Types


I'm searching for a valve that has the same working principle as the ones in the water tank of Nespresso coffee machines, meaning that i can "snap" a container in its place and remove it without using additional "unlatching" operations (like in the quick release coupling, where a lock ring has to be depressed) and the valve is opened by a physical feature that displaces sealing element (not by pressure differential).

I want to incorporate the same principle in my design where the fluid tank can be connected and removed easily and quickly, but i cant find anything useful so far.


RE: (Snap-on?) Check Valve Types

A lot depends on whether a very small amount of whatever you're connecting is allowed to escape and whether you're trying to do this under pressure.

If you remove the locking ring then often there is a force there when needs to be accounted for.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: (Snap-on?) Check Valve Types

Honestly I'm looking for anything that might give me "traction" in finding the right component.
The pressure is atmospheric, flow rate is 0.5LPM, the fluid is foam (for simplicity lets say foam from soapy water), and the tank is placed in its position (the valve engages) when its empty (the foam is added later on).
I'm guessing those are pretty benign conditions and will not present much of a challenge to any component.

RE: (Snap-on?) Check Valve Types

Are you and Michael D related or working on the same project as he's asking an identical question??

Seems very coincidental...

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: (Snap-on?) Check Valve Types

An absolute coincidence!
I'm working on this

RE: (Snap-on?) Check Valve Types

Well good luck.

A litter off the wall but you could adapt the principle behind downhole safety valves.

See https://youtu.be/BgWBXKtAFzQ

The inner tube slides up and pushes the flapper out of the way and protects it.

The negative is that you can't push against much of a pressure difference.

But it wouldn't need to click into place.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: (Snap-on?) Check Valve Types

Use a quick connect coupling and remove the locking feature. Use some other means to hold the tank in place to keep the coupling engaged.


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