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Home Brew Forums > Home Brewing Beer > Automated Brewing Forum > Brewtroller build valves and pump questions?
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Old 05-15-2012, 07:09 PM   #11
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Biggest issue would be the lack of threaded fittings, IMO. As for the GreatBrewEh pump, their stainless version is expected in 2 weeks. These are from Topsflo pumps in China. I did contact that directly about a group buy but they require 200+ units purchased, however they are only $26 a piece.

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Old 05-15-2012, 08:13 PM   #12
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Originally Posted by justcopen View Post
I have anther question for you Wolfman. What pumps do you have and what size motor is on it? or have many amps does it take to run?
I have a pair of the brass connector Topsflo pumps I'm playing with.
I haven't actually measured them, but they are rated for 15 watts @ 12VDC.
So max draw should be 1.25A each.

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Old 09-21-2012, 03:05 PM   #13
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no sure if you guy are still watching this one but I was woundering how your builds are going?
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This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption. Let us give praise to our maker and glory to his bounty by learning about... BEER.
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Old 12-16-2012, 04:16 AM   #14
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Wow... a post about code I wrote....

I wrote and currently use the PWM pump control on the steam output. I also wrote the pulsed input pump control for fly sparge, which I also use.

If you PWM control a pump for fly sparge I HIGHLY suggest you use a peristaltic and not a centrifugal pump, as the flow rate is linear with RPM, makes controlling it much easier.
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