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Blackeagle · 11-02-2002, 10:52 PM

MadDogMe,

Here's your stats on the MD-20 series of pumps.

MD-20RLXT = 13.7 Gpm @ 4' and max head of 8.2' & 5.7psi

MD-20RLT = 8.2 Gpm @ 4' and max head of 14.1' & 10psi

MD-20RZT = 2.9 Gpm @ 4' and max head of 22.6 & 14.2psi

Cost of the MD-20 series pumps is around $140.00 USD but the WMD-20 could be had for around $110.00 USD, but the WMD is said to be louder when running adn the MD motor is supposed to last a good deal longer. The 30 series pumps are priced about +30 for WMD and +65 USD for the MD. But you can rebuild these when needed.

One of the most important things I hope to learn through this thread is if the MD-30 is the best choice of pump. If the dual BIE or Deeps or Abyss can handle the extra heat added by that large of a pump then the pressure would be nice to have. I need to figure out which of various components will make the best balanced system. I don't mind spending a few dollars xtra to get it right, but sure don't want to spend money on a overly large pump that not only would cost more but degrade the system performance by adding more heat to the water than the rad(s) can handle. I'm repeating myself, time to get some sleep. But thanks much for understanding what my goal is and trying to help. You first offered the advice to look for and into the Iwaki pumps on a differant thread.

11-02-2002, 10:52 PM	#10
Blackeagle Thermophile Join Date: Oct 2002 Location: U.S.A = Michigan Posts: 1,243	MadDogMe, Here's your stats on the MD-20 series of pumps. MD-20RLXT = 13.7 Gpm @ 4' and max head of 8.2' & 5.7psi MD-20RLT = 8.2 Gpm @ 4' and max head of 14.1' & 10psi MD-20RZT = 2.9 Gpm @ 4' and max head of 22.6 & 14.2psi Cost of the MD-20 series pumps is around $140.00 USD but the WMD-20 could be had for around $110.00 USD, but the WMD is said to be louder when running adn the MD motor is supposed to last a good deal longer. The 30 series pumps are priced about +30 for WMD and +65 USD for the MD. But you can rebuild these when needed. One of the most important things I hope to learn through this thread is if the MD-30 is the best choice of pump. If the dual BIE or Deeps or Abyss can handle the extra heat added by that large of a pump then the pressure would be nice to have. I need to figure out which of various components will make the best balanced system. I don't mind spending a few dollars xtra to get it right, but sure don't want to spend money on a overly large pump that not only would cost more but degrade the system performance by adding more heat to the water than the rad(s) can handle. I'm repeating myself, time to get some sleep. But thanks much for understanding what my goal is and trying to help. You first offered the advice to look for and into the Iwaki pumps on a differant thread. Last edited by Blackeagle; 11-03-2002 at 08:15 PM.