bendavanza
Well-Known Member
If anyone finds a good price on these impellers online, please post it. rshosted, thanks for the pics, this explains a lot.
Why do you guys need 2 stage chiilers?
Is your tap water that warm that you can't chill your water to pitch temp with just a counterflow or plate chiller?
Instead of a two stage, if doesn't cool that much, couldn't you just set the plate chiller in salted ice water?
Yeah, if your tap water is that warm in the summer, there certainly wold be a need to knock it down more.
Salt water onto Stainless for that small period of time wouldn't phase it, you're going to rinse it and clean it afterwards anyway.
If anyone finds a good price on these impellers online, please post it. rshosted, thanks for the pics, this explains a lot.
I ordered mine from these guys last week
http://www.pumpagents.com/cgi-bin/store.pl
Cost me $24 plus some shipping. Now I see they want $35 and only have one in stock.
Dummy me sold the old brewery to a longtime friend moving out of state, how was I to know a massive back injury was to happen later?
Stuck at home without a brewery not able to build the next "better one", oh well this gives me more time to think and add more ideas to it.
I'd call around different March distributors in your area, hell I might of got lucky as they quoted me $19 plus $10.40 a spare March SS pump end cover.
This a test to see if the SS had different magnetic shielding properties March vs Chugger, nope both the same in shielding the magnetic pull.
One thing the March impeller magnet is full width strong in pull vs narrower on the Chugger magnet. This alone besides longer impeller arms of the March HF is a win win for me with my future pump modification plans.
Yes I will take notes of the changes be it better or worse in performance.
34% increase sounds like a great improvement on flow. Thanks for the effort. Still wondering how the larger impeller will effect priming. I would think it would have to help. Larger impeller leaves less room in the pump for air bubbles to cause cavitation. Along with moving more water.
The HF impeller (The larger on in the pic above) actually has a stronger magnet then the standard 809 impellers do. All these pump were orriginaly designed for specific applications and have since been used for so many variations that over the years we have made them more or less fool proof to the point we now have. The reason for the smaller impeller on the HS models is that the motor spins at 3400RPM and places a bigger stress load on the magnetic coupling. For us, not knowing where the pump may be used we gave it a smaller impeller so the pump is less likely to de-couple. For water type applications you could use the bigger impeller out of the standard 809 (slow speed 1750rpm) and never have a problem......but once you put something heavier into the pump then the mag-drive would de-couple and you would be on the phone with us complaining!
-Walter
I'm still impressed that you and your company monitor this site and provide valuable information! Thanks again..
Walter - this is still a phuckin rip off by your company..... I have to pay MORE money to upgrade my brand new 3500rpm 809's so they'll do their job as advertised (see your website under "Beer Pumps"). $60.00 on the good 'ole net for a pair. Makes me wish I'd went with the Little Giant mag drives - they don't need an upgrade...
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