D.J.Carter wrote:
I need to make a reciprocating water pump as :-

http://good-times.webshots.com/photo...ost=good-times

for a small marine engine.
Casting and machining one is out of the question, so it is piece one
together.
Steel tube outer casing with brass inner sleeve and using silver
steel rod for the piston.
Question : Would the brass sleeve and the silver steel rod be
compatible materials, corrosionally speaking, if left in contact with
fresh (not salt) water together for any length of time?

Thanking you in advance.
Regards,
DJC.


Bronze would be a better choice if you can get it.

Brass will wear fast and the silver steel will rust regardless of what
water it's in.

Will this be pumping hot water or is it the intake pump pulling in cold
water?

--
Steve W.
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