https://brewmagic.com/products/parts/brew-magic-pump-motor It claims not to have an impeller. I was thinking about using this for my mash because I'm not all that keen on throttling an impeller style pump. I'm not overly concerned and I know that a good percentage of that page is just marketing, just curious though. FWIW I use the normal March before the claimed improvements. But if you see in the fine print it says not for feeding plate chillers which tells me that it out put is suspect. Then again all that I feed is a RIMS tube and four feet vertical. TIA
Its a little giant.. And it does have a impeller http://www.plumbersurplus.com/Prod/...Drive-Pump-6-Power-Cord-578603/57399/Cat/1006
It says there's no impeller, but further down the page it says: "It's a 1/25th horse, 115V, Magnetic Drive, Ryton pump housing impeller and encapsulated ceramic magnet". Not sure what to make of that. The fact that it is only rated up to 200F would be a show stopper for me (that's the reason it can't feed a plate chiller). What's your issue with throttling an impeller style pump? The magnetic drive makes that possible without damaging anything.
Thanks everyone. I really don't have an issue with the impeller, or I guess that I shouldn't. I just wonder if there is any effect from the whipping of the wort. I mean I know that there isn't. Just one of those things for me.
Whipping only happens in the presence of air (by definition, whipping is incorporating air into a liquid). The nature of an impeller pump is such that it won't move anything if there's air present, so the mere fact that the wort is moving is evidence that there's no whipping going on.
I've got two LG pumps, though not the style linked above. They work fine with boiling temps. After speaking with the company, they didn't go through the hoops to have the food grade sticker attached to the pump, but said that it was. Take that for what it's worth. Either way, been using them for two years now with no issues, and a ton of beer being pumped through them (hell, made 30 gal alone this weekend in seperate batches). Mine have the inlet in the center with the output out the top. Run quieter than a march, and have very little issue priming. My only gripe is the head is plastic. Wish I could have gotten it in metal. My ball valves, while they don't leak, do move a bit on the output side since I don't want to over tighten and strip the plastic.
Interesting. I'm not sure what technology SABCO is claiming that its pumps now use. I have been brewing with a RIMS (electric RIMS tube) system for a few years. Two years ago I went from using a two-tier system that used a single March 809-PL-HS to a single tier system that uses two pumps. I decided to go with the 809-PL-HS-C (3/4" center inlet to 1/2" outlet). They prime easier than my old pump and at a higher GPM rate. I highly recommend the center inlet pumps. Cost is about the same.
unless it's a diaphragm pump, i'm not sure what they are talking about... edit: now i see, they are saying this pump head is more gentle than some 'other' pump heads....
