walther

Recipes 

Hi,

I have read somewhere that brass can give a metallic taste in the beer?
Do you think this will be the case for this pump?



Cheers,
walther

EdWort

Recipes 

Good question. No idea though.

Is is a magnetic pump? That's the kind you want to use

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Cheers,

EdWort



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rdwj

Recipes 

I don't know for sure, but I SERIOUSLY doubt that pump would leach any noticable tastes into your beer. Plenty of people use brass fittings with no problems at all.

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walther

Recipes 

thank you,

Why should it be magnetically coupled?

I think it is a centrifugal pump, found it on www.brouwland.com

I was hoping it would be powerfull enough to make a proper whirlpool?

Cheers,
walther

WBC

Recipes 

Magnetic pumps were designed to be food grade in that there is no shaft connectiing directly to the impeller. The Impeller is magneticly coupled. If you buy the ones the LBHS sells they are also for hot liquids. I would use the proper pump so your beer will not get infected.

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WBC

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Liquidicem

Recipes 

Magnetically coupled is the way that the pump is driven. The pump is turned by magnets outside the housing. This means that there is no contact between the fluid and the drive mechanism. This is the type of pump you want to use for food type applications. A standard centrifugal pump without a mag drive is not sanitary enough for beer use.

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walther

Recipes 

I have seen a few magnetically coupled, but they seem a bit small ~18W

So the problem would be when pumping the cooled wort, due to infection?

cheers,
walther

Liquidicem

Recipes 

Infection is the biggest concern. There just isn't a good way to thoroughly clean a pump like that.

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GilaMinumBeer

Recipes 

I suppose infection "could" be a concern but, I don't really see why a centrifugal pump would be any harder to clean than a magnetically coupled pump.

That said, the main difference between the two that I see and may explain some off flavors, is lubrication. Being that the centrifugal pump is mechanically coupled by a shaft I would be most concern about leeching of lubricant (oil) into the liquid in the housing.

walther

Recipes 

I can understand your concers, but what about professional pumps like this?



I have only seen small magnetically coupled pumps?

Does anyone use a this type of pump?

cheers,
walther