Chloride Limit for Zirconium and Titanium 1

[kas420]

I am looking for the chloride limit of both zirconium and titanium. We are beginning the switch from chlorine gas to bleach for the treatment of our cooling tower water and want to avoid any problems with elevated chloride levels coming into contact with these metals. Any information you could provide would be helpful.

 

[EdStainless]

chlorine vs chlorides, two very different things in water chemistry.
I presume that you measure and control the free chlorine level since this what provides the disinfectant.
You should control this like you always have.
Chlorides (total dissolved salts) in the water can lead to pitting in many alloys. Look up the corrosion data for the specific alloys that you have in your system, for ALL of the alloys in your system.
Virtually every engineering alloy can tolerate 10ppm Cl, most alloys will handle 50ppm, above that you had better know exactly what the system is made out of, all piping and valves included. (commercially pure grade 2 Ti will handle 3.5% chloride at 180F).

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Plymouth Tube

 

[kas420]

Appreciate the insight Ed.