Alfa Laval is who makes all of the heat exchangers and closed cooling systems for the big CAT, MTU, Man, Cummins, etc…. We just had ours cleaned and taken apart for the 1000hr service. Pretty cool how it comes apart and is able to be cleaned/inspected, then put back together.

https://www.alfalaval.us/industries/...oling-systems/

That is so cool!.....I want to learn more about installation, I've had Imco manifolds destroyed from salt....almost hydrolocked the engine when they finally leaked thru.
What application is yours & in what type boat?...full closed cooling?........can you buy from Alfa Laval or only a distributor?......I know the shell & tube heat exchangers
are pricey..........what about flat plate heat exchangers?....I really like the alternatives to size and heat displacement over shell & tube but need to know more real world
applications for my boat.

We have man V12 1400’s in our 63 Riva. If you look closely at the front of the engine where it says “Man” you will see that is the heat exchanger and the coolant reservoir.

https://www.engines.man.eu/man/media...180315_web.pdf

That's a Luxury motor Yacht application, don't know how it (would or could) be applicable to my 35' Cig......but all the basic principles
for the flat plate technology are there........I wish Bad Chad was into boat!

Most of the alfa laval exchangers are very heavy, with 1" steel plates on either end and stainless midsection.
in a 63' nbd, but in a 35' offshore its not efficient.

Check out Mr. Cool.com they had lightweight tube and shell units...

tube and shell are also easier to service...

I am at a little over 700 hp and using a monitor pro setup when this was a mag mpi engine. Haven’t seen temps over 160 even running in 90+ degree water.

https://cimg0.ibsrv.net/gimg/www.off...dfa8c723d.jpeg

Space and efficiency was my first thought with a flat plate exchangers setup, but neither seems to work in that order........I'll circle back (to use a stupid term) to shell & tube installations

That's a really neat setup!.....Was it rigged new with engine install - or - added afterwards? - is it full closed cooling (engine & manifolds?) ....monitor I believe is backordered till spring ..

It was rigged out of the boat after the rebuild. It’s a half system.

I made a heat exchanger from DD15 Detroit EGR cooler. It works very well. Easily cools 1200hp. I have added fittings to dump excess water pressure and water pressure gauge. All pretty simple, Just had it cleaned, Pressure tested and then got busy for a few hours with the tig. Easy as...