Galvanic corrision betwen brass and galvanized steel

[MJTaylor]

G’day,

Can anyone tell me if it is practically acceptable to use brass and galvanized steel fittings in contact with each other, or will this lead to excessive galvanic corrosion? The fluid passing through the fittings is water and it is not a particularly corrosive atmosphere (coal prep plant)
Thanks

 

[Rich2001]

Will this lead to excessive galvanic corrosion?

This depends on the relative area of each.

Here is some information

http://www.eaa1000.av.org/technicl/corrosion/galvanic.htm

http://www.corrosion-doctors.org/Aircraft/galvseri-table.htm

faq338-78 Galvanic Series Chart

 

[krb]

You can use a di-electric fitting to connect the two materials. They are pretty common and you should be able to find them at most supply houses.