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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Hi all,
Here’s the technical dilemma that I’m trying to solve.
I want to drain a tank of water, from the bottom, at the same rate
regardless of how much water is in the tank. So whether there is 5” or
20” of water in the tank it will drain at ½ gal a minute (values are
somewhat arbitrary for this example).
So how can I do this? I’ve tested Pressure-Compensating Orifice from
McMaster but that didn’t work (I think the pressure is to low for them
to work). I have seen devices that automatically regulate but they are
for larger industrial systems (and cost a lot), or they are for higher
pressure systems.
For more specificity it’s a 11” diameter tank and I’m draining through a
1” valve. The water height varies between 4” to 30”
Any solutions, or ideas, would be appreciated.
Thank you in advance.
-Peter
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