Re: [Amel Yacht Owners] Re: March Liquid cooled pump


This is where it gets confusing. Also, there have been some mind-bending facts presented, but for what it is worth, I have a conclusion that I am satisfied with.

Some information you need to know:
Veco (Climma) uses Calpeda pumps and brands them with the Climma brand. When they do this, they assign a Climma number. The numbers posted for the Calpeda pump from are actually Climma numbers, not Calpeda. The Calpeda number is BCM20/E for the original AC saltwater pump. That "Climma" pump at Penguin is a Calpeda BCM20/A. Calpeda no longer offers a BCM20/E. I am not sure what the difference is between "A" and "E," but I suspect it is electrical because both of these pumps have the same GPH range around 1200. I know that years ago Calpeda had 2 versions of the BCM20. The one Amel installed had an aluminum capacitor, the other a plastic capacitor. There may have been other differences. I also know that if you were unfortunate to buy one with the plastic capacitor, it would melt with heavy use in the tropics.

I am now convinced that the best pump for the A/C is the Calpeda pump. Someday, March may make an encapsulated magnetic drive pump in the 1,200GPH range. When they do, my preference will change. That said, the March TE 5.5C-MD-AC will do a great job, however, you must keep saltwater away from everything except the inside of the pump housing, and you must treat the painted sheet metal case with CorrosionX. You must also immediately clean any accidentally spilled saltwater from the casing and then treat with CorrosionX. 

Unlike Eric's experience with rust appearing on a similar stored March pump, I did not have that happen for the 4 years I had one stored as a spare in the engine room, but I had coated it with CorrosionX only once when I stored it. 

I hope this helps.

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus

Amel School
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970

On Mon, Jan 14, 2019 at 6:39 AM 'Luijten A.F.' arno.luijten@... [amelyachtowners] <amelyachtowners@...> wrote:

I went through the same process finding an alternative for a leaking Calpedia A/C pump.

My conclusion is that for the requirements of running three A/Cs there is no powerful enough pump available with mag-drive. It may be because it would become very expensive to manufacture or you can’t have magnets strong enough for the space available. I don’t know.

I had had just last month a new Calpedia pump delivered to St. Martin from Pretty happy with their service. 
It’s a slightly different model that can also run 60 Hz instead of only 50 Hz. The M67270J is a 50-60Hz model and will work just as well as the original M67270U pump. The fit-match is exact.

Arno Luijten
SV Luna,

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