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Questions tagged [valves]

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4 votes
4 answers

Which components to use for a CO2 gas storage?

I have a CO2 production for my aquariums (currently 2, but the solution should be extenable to - let's say - 5) based on fermentation of bio mass (CO2 is used as fertilizer there) which consist of a ...
Kalle Richter's user avatar
4 votes
1 answer

Is there a (sort of inverse security) valve which opens if one connected side has a pressure below a certain value?

Security valves with two connectors open if the pressure exceed a value x +/- tolerance on one side. I'd like to know if there's a mechanical valve which opens if the pressure on one side sinks below ...
Kalle Richter's user avatar
3 votes
1 answer

What is this plumbing apparatus?

This device is about five feet tall. It is located in a ground-floor alcove in the exterior of a commercial building on a public street in Santa Monica, California. Each of the chained manual valve ...
Mark Dominus's user avatar
1 vote
1 answer

How can I build a electronically controlled valve for a 1/4 inch tube

I'm looking for a practical efficient way to open and close a 1/4 inch gravity fed hose. Initially I was thinking of using a Solenoid, but can't find anything suitable. My second thought was using a ...
user379468's user avatar