Bulk Buy - Little Brown Pumps

[angus_grant]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TL-B07 - 24v - angus_grant $325
14 TL-B07 - 24v - angus_grant $350

 

[Wolfy]

I would like to jump in here but do not know why someone would be after 12V instead of 24V considering the increased flow rate.

Of course it depends on your application and intended use but don't assume that increased flow rate is a good thing simply because the numbers are bigger. There are at least 2 recent threads on these forums where people have said that their (assuming 12V) brown pump's flow-rate is too high - it causes a stuck-sparge, sucks the BIAB-bag down and in one case someone lost a heating element because of it. With a magnetic drive pump (March pump) throttling the outlet is the usual way to control the flow, but with these the usual way to adjust flow is via a voltage controller, where you might actually find that you need less flow anyway.

But having said that, if i did not already have 2x 12V pumps, I'd be looking to buy at least one 24V from this buy.

 

[Parks]

With a magnetic drive pump (March pump) throttling the outlet is the usual way to control the flow, but with these the usual way to adjust flow is via a voltage controller, where you might actually find that you need less flow anyway.

How do you think these motors are driven?

-EDIT-
I really can't see any reason why you can't throttle these on the outlet the same as a march pump.

 

[Darkman]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TB-B07 - 24v - angus_grant $325
14 TB-B07 - 24v - angus_grant $350
15. TL-B07 -24v - darkman - $50

 

[leahy268]

From what I gather PWM makes the best voltage control method for these.. That's what I intend on using..

 

[leahy268]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TB-B07 - 24v - angus_grant $325
14 TB-B07 - 24v - angus_grant $350
15. TL-B07 -24v - darkman - $375 - Edited to alter this one.. from $50..

 

[Darkman]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TB-B07 - 24v - angus_grant $325
14 TB-B07 - 24v - angus_grant $350
15. TL-B07 -24v - darkman - $375
16. TL-B07 -24v - darkman - $400

 

[Wolfy]

How do you think these motors are driven?

-EDIT-
I really can't see any reason why you can't throttle these on the outlet the same as a march pump.

These pumps have a direct/mechanical shaft assembly, and are not magnetic drive pumps (as far as I am aware). If the load on a magnetic drive pump is too great the magnetic coupling will break meaning that the pump will not be overloaded or damaged, if you do that with a direct-shaft pump (as far as I am aware) it can cause damage to the pump and even make it inoperable. Having said that, I have a valve on the outlet of my 12V pumps to control the flow, but I do accept that might reduce their life or break them (but they are cheap so that is a valid risk IMHO).

 

[Parks]

These pumps have a direct/mechanical shaft assembly, and are not magnetic drive pumps (as far as I am aware). If the load on a magnetic drive pump is too great the magnetic coupling will break meaning that the pump will not be overloaded or damaged, if you do that with a direct-shaft pump (as far as I am aware) it can cause damage to the pump and even make it inoperable. Having said that, I have a valve on the outlet of my 12V pumps to control the flow, but I do accept that might reduce their life or break them (but they are cheap so that is a valid risk IMHO).

http://topsflo.en.made-in-china.com/produc...mp-TL-B07-.html
http://topsflo.en.alibaba.com/product/3904...fugal_Pump.html

Both suggest they are a magnetic drive pump.

 

[leahy268]

http://topsflo.en.made-in-china.com/produc...mp-TL-B07-.html
http://topsflo.en.alibaba.com/product/3904...fugal_Pump.html

Both suggest they are a magnetic drive pump.

These are magnetic drive pumps..

 

[Jez]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TB-B07 - 24v - angus_grant $325
14 TB-B07 - 24v - angus_grant $350
15. TL-B07 -24v - darkman - $375
16. TL-B07 -24v - darkman - $400
17. TL-B07 -24v - jez - $425

 

[leahy268]

1 more and that will be a 5kg bag full including 2 spares... Next size is 22kg.. Need 30 pumps before it becomes worthwhile..

 

[angus_grant]

Bit hard to tell from the pic or pdf, but can you rotate the head around?

 

[leahy268]

Bit hard to tell from the pic or pdf, but can you rotate the head around?

I will ask the question from the supplier...

 

[Wolfy]

Just had a reply from the manufacturer..
As follows:

For our TL-B07 and TL-B02, its pump body & imppler are PPS materials, O-ring is Silicon rubber and the bearing is Zirconia ceramic.
These pumps should be good for 5000hrs use and 100 deg Celcius. Ideal for food grade application.

I just pulled apart my (Ebay) little brown pump, and as you can see below has quite a number of metal components as well as the PPS, silicon and ceramic mentioned.
It may be that the ones you are getting are different, but would it be possible to ask if yours also have all those seals and clips too? If yours have none I'll buy one.

http://topsflo.en.made-in-china.com/produc...mp-TL-B07-.html
http://topsflo.en.alibaba.com/product/3904...fugal_Pump.html

Both suggest they are a magnetic drive pump.

These are magnetic drive pumps..

As you can see in the picture above, the impeller is directly connected to the drive-shaft, this means that water, wort, crud etc can get from the impeller down past the seal and into the drive shaft housing and bearings. From the Wiki article and this info on the March pump website, a magnetic drive pump's impeller is connected to the drive shaft only by the magnetic coupling, not attached directly to the drive shaft, which means that there is no shaft-seal and no water, wort or crud can get into the shaft housing or bearings and that overloading the pump only causes the magnetic coupling to 'break' not the pump itself.

It may be that they call the pump magnetic drive because - obviously - the shaft (the shaft housing is sealed from the motor) is driven by magnets, but the impeller is attached directly to the drive shaft. I have two of these pumps, they're great and they are cheap, however the trade-off for that is that they do have limitations compared to much more expensive equipment - which is all I was trying to point out.

Bit hard to tell from the pic or pdf, but can you rotate the head around?

By undoing the 4 screws you can easily rotate the head in 90degree increments.

 

[angus_grant]

By undoing the 4 screws you can easily rotate the head in 90degree increments.

The pics suggested that but I just wanted confirmation. At $25 it wouldn't bother me too much if it didn't rotate, would just make my install neater with regards to hose direction. And at some point I will probably upgrade to a March pump anyways just because I don't really want my system completely based on a cheap $25 Chinese knock-off pump. Can always use the pump somewhere else of course!

 

[Parks]

As you can see in the picture above, the impeller is directly connected to the drive-shaft, this means that water, wort, crud etc can get from the impeller down past the seal and into the drive shaft housing and bearings. From the Wiki article and this info on the March pump website, a magnetic drive pump's impeller is connected to the drive shaft only by the magnetic coupling, not attached directly to the drive shaft, which means that there is no shaft-seal and no water, wort or crud can get into the shaft housing or bearings and that overloading the pump only causes the magnetic coupling to 'break' not the pump itself.

It may be that they call the pump magnetic drive because - obviously - the shaft (the shaft housing is sealed from the motor) is driven by magnets, but the impeller is attached directly to the drive shaft. I have two of these pumps, they're great and they are cheap, however the trade-off for that is that they do have limitations compared to much more expensive equipment - which is all I was trying to point out.

Now I understand what you mean.

I still wouldn't think that adding output pressure would strain it. There would just be more liquid swirling around inside the head instead of flowing.

 

[Robbo2234]

do you guys think if you used a variable resistor or potentiometer you can control the flow rate?

 

[Wolfy]

I still wouldn't think that adding output pressure would strain it. There would just be more liquid swirling around inside the head instead of flowing.

I'll tell you if and when I kill mine by restricting the output. However, I have killed aquarium pump-filters (virtually the same design pump), that work 24/7 by restricting them by not cleaning them often enough.

 

[marzross]

1. TL-B07 -24v - warwick - $25
2. TL-B07 -24v - warwick - $50
3. TL-B07 -12v - Mjad - $75
4. TL-B07 -12v - Mjad - $100
5. TL-B07 -12v - Acasta - $125
6. TL-B07 - 24v - Wallace - $150
7. TL-B07 - 12v - Davelovesbeer - $175
8. TL-B07 - 24v - ampy - $200
9. TL-B07 - 24v - ampy - $225
10. TL-B07 - 24v - Parks - $250
11 TB-B07 - 24v - David72. $275
12 TB-B07 - 24v - David72 $300
13 TB-B07 - 24v - angus_grant $325
14 TB-B07 - 24v - angus_grant $350
15. TL-B07 -24v - darkman - $375
16. TL-B07 -24v - darkman - $400
17. TL-B07 -24v - jez - $425
18. TL-B07 -12v - Mario - $450