Official: Masterflex Calcium Reactor Setup Thread - Page 61

this is me · 12/07/2015, 04:55 PM

is the 7520-40 brushless? Couldn't this info on their website.

swk · 12/07/2015, 05:01 PM

Quote:

Originally Posted by this is me

is the 7520-40 brushless? Couldn't this info on their website.

I would try to Google the model number. If that doesn't give you an answer, just call the Cole parmer customer service number, or email them. They're nothing but incredibly helpful and timely with their responses.

slief · 12/07/2015, 05:14 PM

Quote:

Originally Posted by this is me

is the 7520-40 brushless? Couldn't this info on their website.

That model is not brushless. The brushless ones usually say brushless or maintenance free in the description. They are also listed as twice that price in their catalog,

Here is the manual for that model. It also shows the brushes in the exploded diagrams.
http://www.masterflex.com/Assets/man...-1299-0860.pdf

this is me · 12/07/2015, 05:30 PM

Can you please send me a link or model of one with the brushless? I don't want the wife to complaint about the noise.

slief · 12/07/2015, 06:16 PM

Quote:

Originally Posted by this is me

Can you please send me a link or model of one with the brushless? I don't want the wife to complaint about the noise.

They are listed in this thead. The most commonly available units are model numbers 7523-60, 7550-30, 77301-20, and 77301-30.
That said, the 7523-60 is the brushless version of the 600 rpm pump you were looking at. I run a 7523-80 but that is a newer and more expensive 600 rpm brushless model that is silent. Then again, most of the brushless models are pretty much silent.

Reefstarter2 · 12/07/2015, 06:45 PM

I am waiting on my "new to me " CP peri . it is the 7554-90 model with a 7021-20 head running LS pharm med 16 . can't wait to get this thing running . from all the threads I have read I will be pulling fluid through the reactor which is a Geo 612 part of why I made this choice is on more than one occassion my reactor has leaked from the O-ring . I got new ones and still the same problem . so that leads me to believe I am building to much pressure in the chamber . of course I found this thread after buying it lol. great thread

this is me · 12/08/2015, 08:33 AM

Quote:

Originally Posted by slief

They are listed in this thead. The most commonly available units are model numbers 7523-60, 7550-30, 77301-20, and 77301-30.
That said, the 7523-60 is the brushless version of the 600 rpm pump you were looking at. I run a 7523-80 but that is a newer and more expensive 600 rpm brushless model that is silent. Then again, most of the brushless models are pretty much silent.

Thanks, I was looking at the 7523-60 at first but when I saw the LCD and the buttons, I thought it would be much less reliable than the old analog dial. Will look into the digital instead for the brushless motor.

slief · 12/08/2015, 11:35 AM

Quote:

Originally Posted by this is me

Thanks, I was looking at the 7523-60 at first but when I saw the LCD and the buttons, I thought it would be much less reliable than the old analog dial. Will look into the digital instead for the brushless motor.

The digital is much nicer because you can set the flow down to the fraction of a milliliter or my RPM instead of guessing the flow by counting RPM's as you would have to with a knob. FWIW, these pumps are very reliable and built to last.

royvoss · 12/14/2015, 09:09 AM

i am able to get my hands on either a 7522-20 or 7523-80 drive unit, also they both have the 77200-62 head on them, this uses the 15.24.35.36, tubing, would either one of these work for a ca reactor setup, geo 624. any help would be greatfull. thanks

slief · 12/14/2015, 09:26 AM

Quote:

Originally Posted by royvoss

i am able to get my hands on either a 7522-20 or 7523-80 drive unit, also they both have the 77200-62 head on them, this uses the 15.24.35.36, tubing, would either one of these work for a ca reactor setup, geo 624. any help would be greatfull. thanks

I have the 7523-80 which is the same as the 7522-20 near as I can tell. It's a great pump! As far as tubing, with that head, LS24 would be the best bet but I would probably look for an alternate head so you can use the LS17 tubing. A new head should cost you around $100 and if you have an eBay account, you could sell the 77200-62 for about the same.

royvoss · 12/14/2015, 10:21 AM

thanks for the quick reply, i think the 7522-20 is the newest model out, from what i can see on cole parmer's site,was wonder if i shoould go with that or the 7523-80, though about picking up a different head,seen a few on ebay
i can get either drive unit, it would cost me very little to go either way.

slief · 12/14/2015, 10:34 AM

Quote:

Originally Posted by royvoss

thanks for the quick reply, i think the 7522-20 is the newest model out, from what i can see on cole parmer's site,was wonder if i shoould go with that or the 7523-80, though about picking up a different head,seen a few on ebay
i can get either drive unit, it would cost me very little to go either way.

I do believe you are correct. The 7522-20 is the newer version although I think it's just a model change and not any physical differences.

royvoss · 12/16/2015, 02:15 PM

was able to get the 7523-80 with out the pump head, found a 77200-60 head on ebay. just need to order tubing and some fitting.

gus6464 · 12/16/2015, 02:21 PM

Is 6-600RPM really needed or can one get by with 1-100RPM?

swk · 12/16/2015, 02:34 PM

Quote:

Originally Posted by gus6464

Is 6-600RPM really needed or can one get by with 1-100RPM?

You'll be fine with the slower rpm motor. Just more noise and wear than the other gearing for the same ml/min. Otherwise no issues.

gus6464 · 12/16/2015, 04:46 PM

K so I just won a Masterflex 7520-40 for cheap but it has no pump head. What head and tubing do you all recommend?

slief · 12/16/2015, 05:41 PM

Quote:

Originally Posted by gus6464

K so I just won a Masterflex 7520-40 for cheap but it has no pump head. What head and tubing do you all recommend?

LS-17 tubing is what we normally suggest. I would suggest a 7518-10 head or any other Easy Load II head that supports LS 17 tubing.

gus6464 · 12/16/2015, 05:42 PM

Quote:

Originally Posted by slief

LS-17 tubing is what we normally suggest but not all pump heads support that tubing size so it all depends on what head your pump came with.

It came with no pump head have to get one.

slief · 12/16/2015, 05:46 PM

Quote:

Originally Posted by gus6464

It came with no pump head have to get one.

Damn, your fast! I edited my post with the head I would suggest.. 7518-10 or any other Easy Load II head that supports LS 17 tubing. The 7518-10 has stainless steel rollers which is a good thing.

gus6464 · 12/16/2015, 06:31 PM

Quote:

Originally Posted by slief

Damn, your fast! I edited my post with the head I would suggest.. 7518-10 or any other Easy Load II head that supports LS 17 tubing. The 7518-10 has stainless steel rollers which is a good thing.

Awesome thanks for the info. Found a 7518-10 head for a good price so snatched it up. Having a hard time finding LS17 tubing that doesn't cost an arm and a leg. I found some ls16 though for real cheap. Can choose between platinum and peroxide cured. Can I get away using this? Reactor is a geo 612.

slief · 12/16/2015, 06:59 PM

Quote:

Originally Posted by gus6464

Awesome thanks for the info. Found a 7518-10 head for a good price so snatched it up. Having a hard time finding LS17 tubing that doesn't cost an arm and a leg. I found some ls16 though for real cheap. Can choose between platinum and peroxide cured. Can I get away using this? Reactor is a geo 612.

You really want the LS17 stuff. I just sent you a PM.

royvoss · 12/16/2015, 08:53 PM

would it be possible to send the same link for the ls 17 tubing?

thanks

BillFW · 12/17/2015, 08:46 AM

Quote:

Originally Posted by royvoss

would it be possible to send the same link for the ls 17 tubing?

thanks

Yes, please!

gus6464 · 12/22/2015, 04:41 PM

Got my pump in today. Put the pump head in and noticing the drive motor is running kind rough at super low rpm. Does the tubing need to be rubbed with some silicone grease so it runs smoother?

slief · 12/22/2015, 04:45 PM

Quote:

Originally Posted by gus6464

Got my pump in today. Put the pump head in and noticing the drive motor is running kind rough at super low rpm. Does the tubing need to be rubbed with some silicone grease so it runs smoother?

You don't need to use any silicone lube on the hose. Is it just clicking you are hearing? If so, it's kind of normal for some units. If you remove the head, you will see the motor shaft has a slot on it. If you look at the back side of the head, you will notice it's keyed to fit into the slot on the motors shaft. There is in some cases enough play between the pump head and the motor that it causes some clicking. Some people get some thin adhesive backed tar like paper from Home Depot and put it into the key slot to tighten the fit between the two parts. Others have used Teflon tape over the male keyed part on the head side to address the noise.

12/07/2015, 04:55 PM	#1501
this is me Registered Member Join Date: Jul 2003 Location: MA Posts: 4,074	is the 7520-40 brushless? Couldn't this info on their website. __________________ Nick When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's $4.95 per minute. Current Tank Info: Miracle 360 gallons

12/07/2015, 05:30 PM	#1504
this is me Registered Member Join Date: Jul 2003 Location: MA Posts: 4,074	Can you please send me a link or model of one with the brushless? I don't want the wife to complaint about the noise. __________________ Nick When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's $4.95 per minute. Current Tank Info: Miracle 360 gallons

12/14/2015, 09:09 AM	#1509
royvoss Registered Member Join Date: Sep 2007 Location: nj Posts: 467	pump choices i am able to get my hands on either a 7522-20 or 7523-80 drive unit, also they both have the 77200-62 head on them, this uses the 15.24.35.36, tubing, would either one of these work for a ca reactor setup, geo 624. any help would be greatfull. thanks

12/07/2015, 06:45 PM	#1506
Reefstarter2 Registered Member Join Date: Aug 2014 Posts: 295	I am waiting on my "new to me " CP peri . it is the 7554-90 model with a 7021-20 head running LS pharm med 16 . can't wait to get this thing running . from all the threads I have read I will be pulling fluid through the reactor which is a Geo 612 part of why I made this choice is on more than one occassion my reactor has leaked from the O-ring . I got new ones and still the same problem . so that leads me to believe I am building to much pressure in the chamber . of course I found this thread after buying it lol. great thread

12/14/2015, 10:21 AM	#1511
royvoss Registered Member Join Date: Sep 2007 Location: nj Posts: 467	thanks for the quick reply, i think the 7522-20 is the newest model out, from what i can see on cole parmer's site,was wonder if i shoould go with that or the 7523-80, though about picking up a different head,seen a few on ebay i can get either drive unit, it would cost me very little to go either way.

12/16/2015, 02:15 PM	#1513
royvoss Registered Member Join Date: Sep 2007 Location: nj Posts: 467	was able to get the 7523-80 with out the pump head, found a 77200-60 head on ebay. just need to order tubing and some fitting.

12/16/2015, 02:21 PM	#1514
gus6464 Registered Member Join Date: Sep 2009 Posts: 1,079	Is 6-600RPM really needed or can one get by with 1-100RPM?

12/16/2015, 04:46 PM	#1516
gus6464 Registered Member Join Date: Sep 2009 Posts: 1,079	K so I just won a Masterflex 7520-40 for cheap but it has no pump head. What head and tubing do you all recommend?

12/16/2015, 08:53 PM	#1522
royvoss Registered Member Join Date: Sep 2007 Location: nj Posts: 467	would it be possible to send the same link for the ls 17 tubing? thanks

12/22/2015, 04:41 PM	#1524
gus6464 Registered Member Join Date: Sep 2009 Posts: 1,079	Got my pump in today. Put the pump head in and noticing the drive motor is running kind rough at super low rpm. Does the tubing need to be rubbed with some silicone grease so it runs smoother?