Welding 101 = Fun Brutus Build - Page 11

Mose · 03-26-2010, 08:06 PM

Did you get the 2-MD that the guy on ebay is selling for the $60 range. I looked that up and the temp rating was like 150* if I remember correctly. I didn't pull the trigger and decided to wait.

SouthernYankee · 03-26-2010, 08:11 PM

Quote:

Originally Posted by Mose

Did you get the 2-MD that the guy on ebay is selling for the $60 range. I looked that up and the temp rating was like 150* if I remember correctly. I didn't pull the trigger and decided to wait.

Yes, its the 2-MD, took me awhile to find the thread. But here it is, post #29 has the photo I took of the one I bought. Post #37 has to do with the temp of the matterial used for the head.

http://www.homebrewtalk.com/f11/good-ebay-deal-little-giant-3-md-hc-pumps-158926/

Mose · 03-26-2010, 08:25 PM

Thanks for the link. I'll be waiting to hear how your's works out. I'm thinking of using an IC anyway so my temps won't be over 200*. Your stand is sucking me into welding, not where I intended to go, so why stop there. If it works I'm onboard in a heartbeat. By the way your rig is looks great.

ghart999 · 03-26-2010, 09:00 PM

Quote:

Originally Posted by diatonic

trader-drew on eBay has been selling 3-MD-HCs in the $120-$150 range for the past couple of months. He doesn't have any listed now, but that's where I would watch. They're easy to find in the $250 range on eBay.

Geez I read some of the threads how these pumps used to be like $80 just 3-4 months ago and now almost doubled in price. I am sold on them. I just need to find one in the $120-$150 price range.
What's the difference between the 3-MD-MT-HC and the 3-MD-HC? Does it matter which one I get?

SouthernYankee · 03-26-2010, 09:22 PM

Quote:

Originally Posted by ghart999

Geez I read some of the threads how these pumps used to be like $80 just 3-4 months ago and now almost doubled in price. I am sold on them. I just need to find one in the $120-$150 price range.
What's the difference between the 3-MD-MT-HC and the 3-MD-HC? Does it matter which one I get?

I think the MT-HC means the head is for high heat and the HC part means Highly crossosive.

MD just means Magnetically driven.

$151 at this place. However it has a 1" thread, but you can always by a reducer fitting.

http://www.plumbersurplus.com/Prod/Little-Giant-3-MD-MT-HC-1-25-HP-500-GPH-@-1-Magnetic-Drive-Pump-6-power-cord-(578603)/57399/Cat/1006

Not a bad price!

Fletch · 03-27-2010, 03:40 AM

Quote:

Originally Posted by diatonic

trader-drew on eBay has been selling 3-MD-HCs in the $120-$150 range for the past couple of months. He doesn't have any listed now, but that's where I would watch. They're easy to find in the $250 range on eBay.

Grainger has them for about $180, IIRC. And a quick google turned up this http://www.plumbersurplus.com/Prod/Little-Giant-3-MD-MT-HC-1-25-HP-500-GPH-@-1-Magnetic-Drive-Pump-6-power-cord-(578603)/57399/Cat/1006 place, $151 and change.

SouthernYankee · 03-27-2010, 05:31 PM

Well test #2 results are in.
The test provide to be a much better and precise test of the stand, the paint, wooden heat shield etc.. from the first test run I did.

After 53 minutes of the keggle under fire. Here are my findings and process.

10.5 gal of water in the HLT.
Start temp of water: 56.3....Got the water to 180 degrees in 53 min.

The PAINT: Well the barbeque paint still held strong. Awesome stuff! The epoxy paint...not so well. (photos provided)

Wooden heat shield: Going to have to cut 5.5" off one end to allow the heat from the keggles to vent from the sides. The shield was too long, Other then being to long..held up really well and only got a little warm. Not enough to do any damage to anything.

The plastic end caps...enough said! (what was I thinking)

Propane manifold in its current position. Im happy that I moved it from its original position to its current. Got a little hot. But not bad. Also happy that I applied the 1200 degree paint to it. Don't know if this helps..but peace of mine.

As for the paint...back to the paint shop it goes. Going to strip down the upper part of the stand. Right to where the water filter housing sits..the lower part of the stand is ok for the epoxy paint. Then repaint it with the barbeque paint.

Start of the paint peeling from the heat.

After the 53 min.

The steam!

willynilly · 03-27-2010, 05:44 PM

Quote:

Originally Posted by SouthernYankee

Well test #2 results are in.
The test provide to be a much better and precise test of the stand, the paint, wooden heat shield etc.. from the first test run I did.

After 53 minutes of the keggle under fire. Here are my findings and process.

10.5 gal of water in the HLT.
Start temp of water: 56.3....Got the water to 180 degrees in 53 min.

The PAINT: Well the barbeque paint still held strong. Awesome stuff! The epoxy paint...not so well. (photos provided)

Wooden heat shield: Going to have to cut 5.5" off one end to allow the heat from the keggles to vent from the sides. The shield was too long, Other then being to long..held up really well and only got a little warm. Not enough to do any damage to anything.

The plastic end caps...enough said! (what was I thinking)

Propane manifold in its current position. Im happy that I moved it from its original position to its current. Got a little hot. But not bad. Also happy that I applied the 1200 degree paint to it. Don't know if this helps..but peace of mine.

As for the paint...back to the paint shop it goes. Going to strip down the upper part of the stand. Right to where the water filter housing sits..the lower part of the stand is ok for the epoxy paint. Then repaint it with the barbeque paint.

12,300 BTU/hr?? Was the burner wide open? What is the burner rated at?

I would have expected the paint to last longer, would powdercoat work better??

Fletch · 03-27-2010, 05:59 PM

[QUOTE-GHART999]What's the difference between the 3-MD-MT-HC and the 3-MD-HC? Does it matter which one I get?[/QUOTE]

Quote:

Originally Posted by SouthernYankee

I think the MT-HC means the head is for high heat and the HC part means Highly crossosive. MD just means Magnetically driven. $151 at this place. However it has a 1" thread, but you can always by a reducer fitting.
http://www.plumbersurplus.com/Prod/Little-Giant-3-MD-MT-HC-1-25-HP-500-GPH-@-1-Magnetic-Drive-Pump-6-power-cord-(578603)/57399/Cat/1006
Not a bad price!

The 3-MD-MT-HC has 1/2" MPT inlet and outlet, in a V configuration, as in the photo on the linked page, and it's 1/25 HP. The 3-MD-HC is 1/12 HP, with a 3/4" FPT inlet at 90 degrees to the volute (in line with the motor axis) and a 1/2" MPT outlet. The LG pump with a 1" inlet and 1/2" outlet is either a 4 or 5 Series, which are similar to the 3-MD-HC, but with bigger motors, and are overkill for most hombrew rigs. They have flow rates that could setiously stick your mash!

willynilly · 03-27-2010, 06:02 PM

I have the 3-MD-HC and it pumps SERIOUSLY fast. In fact, you can see some SLIGHT "balooning" of the silicone hoses between the pump and valve if you shut off the flow. It is a serious pump.