The Titanium Advantage
What makes titanium the preferred material for marine service?
Which do you want on your boat,
Carbon Steel heads or Titanium heads?
Copper-Nickel tubes or Titanium tubes?
Carbon steel and seawater are inherently mismatched. Chlorine molecules in seawater are very chemically active and attack the carbon steel immediately. Material is lost in the form of galvanic activity and leaks develop soon after. With Copper-Nickel (Cu-Ni) exchangers similar problems develop. As with carbon steel shells, there will always be galvanic activity with a resulting material loss in both tubes and in the shell. At the end of the day, Cu-Ni is a ‘poor man’s’ battery, creating problems in the presence of salt water. Both types of shell & tube exchangers need a better alternative.
Titanium is neither galvanically active nor prone to Electrolysis. Its chemical stability makes it an ideal material for high chlorine service. Its high strength (<90,000psi) allows it to survive when sand and solids are passed through the tubes. It is possible to use thinner tubing walls and higher water velocities due to its strength and this promotes good heat transfer and long tube life.
Fabricating in Titanium takes special skills and after 24 years we have gotten very good at working with this superior metal. We routinely ship units sized from 6” to 24” diameter and from 24” to 240” inches long. If a customer has a special situation, we can make a flat exchanger, or an open tube bundle for use INSIDE the fish tank / well.