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slandau
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Join Date: Apr 2011
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Pump for Galinistan - Very Corrosive Material

11/30/2011 9:14 AM

Help - I have a tough one- Pumping : Galinstan (a liquid metal) 1 GPM, Variable Speed Head Pressure 80 PSI S.G. ~ 8 Physical Properties are here: http://en.wikipedia.org/wiki/Galinstan All Teflon Wetted parts. No Metal allowed I prefer Centrifugal to minimize pulsations, but If nothing will do it, then I can go to all plastic Diaphragm pump. Any recommendations?
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PWSlack
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#1

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 9:23 AM

At what temperature?

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slandau
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#2
In reply to #1

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 9:30 AM

Temp 15-50C
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SolarEagle
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#3

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 9:40 AM

A SILICON-BASED GALINSTAN MAGNETOHYDRODYNAMIC PUMP...
http://cap.ee.imperial.ac.uk/~pdm97/powermems/2009/pdfs/papers/033_0201.pdf

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slandau
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#5
In reply to #3

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 9:49 AM

Yes, but my client now needs a much higher flow. They are testing high flows for cooling, once it works they will get the $ to scale up a electromagnetic pump.
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SolarEagle
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#7
In reply to #5

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 12:23 PM

This might work...

http://www.acepumps.com/en/index.php?/site/products/C10/Diaphragm/

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lyn
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#4

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 9:48 AM

Harrington, Ryan-Herco Welch, and many others have plastic pumps. Not an endorsement)

You might want to consider a peristaltic pump with multiple rollers.
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Holzfeller
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#6

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 11:17 AM

An interesting one. The problem is not so much to do with material compatibility, but rather the high SG. There are no end of companies doing small plastic centrifs in fluoropolymers that will do the duty in terms of flow and head (80psi at SG 8 approximates to 22ft head), but they are not designed to handle this pressure. Likewise there are no end of fluoropolymer lined centrifs that will handle the pressure, but don't go as low as 1gpm. If you want to minimize pulsation, rather than peristaltic or diaphragm pumps, it might be worth looking into non-metallic rotary vane pumps such as these.
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ajwinemaker
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#8
In reply to #6

Re: Pump for Galinistan - Very Corrosive Material

11/30/2011 8:40 PM

Agree - centrifs are out (unless mutistage, and dont' believe any synthetic ofthis style yet).

Monster diaphram pump would be my solution.

GA from me.
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Tornado
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#9
In reply to #6

Re: Pump for Galinistan - Very Corrosive Material

12/01/2011 12:32 AM

That sounds like a reasonable candidate. Also, how about progressive cavity pumps? (I don't know if any are made of plastics/polymers.)

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ajwinemaker (1); Holzfeller (1); lyn (1); PWSlack (1); slandau (2); SolarEagle (2); Tornado (1)

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