Diy solenoid? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 10-27-2014, 10:17 AM Thread Starter
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Diy solenoid?

Hi
How make diy solenoid?
I want to make diy solenoid for my diy co2 to make it automatic.
Tnx
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post #2 of 6 (permalink) Old 10-27-2014, 11:52 AM
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I'm not sure what you mean by a DIY solenoid. For the most part, building a solenoid at home is beyond the means of most people.

Most people will purchase a solenoid (such as a Burkert 6011, Clippard mouse, etc) and then hook it up to their pressurized CO2 system.

Is the latter what you meant?

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post #3 of 6 (permalink) Old 10-27-2014, 06:53 PM Thread Starter
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No i mean diy solenoid
In here solenoid is too expensive.i want to make just simple solenoid for co2 of my nano tank

Last edited by Kavak; 10-27-2014 at 06:53 PM. Reason: A
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post #4 of 6 (permalink) Old 10-27-2014, 08:50 PM
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Unless you have a metal shop, it's not possible. A solenoid is a simple electromagnet but making it gas tight, under pressure is not so simple by hand.


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post #5 of 6 (permalink) Old 10-27-2014, 09:35 PM
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Building a valve for a DIY CO2 system is plausible since the requirements are not very stringent.

First thing to remember is that the valve should cause your system to "leak" when open. You don't want to seal off the DIY bottle or pressure will build until something gives.

Just put a tee in the line, when the valve is open the pressure will escape and never build up enough to get to the tank. When the valve is closed, everything operates as normal. The valve must be located above the water line, or you must use a check valve otherwise the possibility of a siphon exists.

The valve doesn't need to be perfectly air tight, and it only needs to hold the pressure of a few inches of water so something as simple as this will be sufficient:
http://hackaday.com/2014/09/27/autom...y-water-valve/


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post #6 of 6 (permalink) Old 10-28-2014, 02:48 PM
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If there are salvage cloths washing machines or dishwashers available, they may have solenoids on the water supply. These are handy to use as solenoids on irrigation systems so should be tight enough to hold CO2. These might work but they would have some faults as well due to noise, heat and power consumption. They are designed to pull the mechanism for a fairly short time and then release so that overheating is not a factor like when we pull the solenoid for 8 hours or more.
Actually building a solenoid from scratch starting with wire and basic parts would be really difficult and time consuming.
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