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Jared wrote:
>
> Alternativeley you can continue using the valve with the old style pump and
> have an air tank (if you own two) on each side i.e. one that holds the
> vaccum and one that holds the pressureized air.
Somehow I'm a bit queasy about this business of "storing vacuum" in a
tank.
So I checked with the local supplier of industrial gases. If you need a
tank of compressed air, that's no problem. But a tankful of vacuum, er
that's not listed in the catalogue.
It seems the only way to maintain vacuum is to have a motor-driven
exhauster working all the time. That's how its done in the vacuum brake
system on trains.
--
C S Soh
CSSoh's Lego Pneumatics
http://www.geocities.com/cssoh1
... where air is power!
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Message has 1 Reply:
 | | Re: Home-made One-way valve
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| c s soh <cssoh@singnet.com.sg> wrote in message news:3C213F4F.CC899E....com.sg... (...) and (...) How about a vacuum flask (thermos), domestic lightbulb, or even CRT (cathode ray tube such) as in your TV or monitor. These all rely on a stored (...) (23 years ago, 20-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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Message is in Reply To:
| | Re: Home-made One-way valve
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| Alternativeley you can continue using the valve with the old style pump and have an air tank (if you own two) on each side i.e. one that holds the vaccum and one that holds the pressureized air. but... theres still the problem of flipping the valve (...) (23 years ago, 19-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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