Flange Finish

Un-plated
Standard flanges are CNC machined from corrosion resistant, marine grade brass and are supplied un-plated unless otherwise specified.

Tin
Tin plating improves the compatibility of standard brass flanges with aluminium by reducing differential electrode potentials thus reducing electrolytic corrosion.

It also provides increased resistance to corrosion in hostile enviroments.

Silver
Silver plating of the flanges provides increased corrosion resistance for hostile enviroments.