Letter 30011

Anodized aluminum or stainless steel in deionized water [Connecticut]  

++++ How well does anodized aluminum hold up to deionized water? How does stainless hold up to deionized water? We have a customer that wants to use one of our grippers in a deionized water washdown and is concerned with corrosion or deterioration. Mark K [last name deleted for privacy due to age of posting] Pneumatic Gripper Manufacturer - Monroe, CT, USA ++++ Dear Mark, It depends on your custumers' needs; are you concerned about metal ions in the water or corrosion on your item ? I have used a SS 316 heat exhanger for DI water, and it's not corroded yet.. Best regards, Bo König Food industry - Odense, Denmark ++++ Bo, Thank you. I have been told that 3XX series stainless holds up well. My bigger concern is the hard coat anodized aluminum. I am not concerned with getting ions in the water, I am worried about our product corroding. Regards, Mark K [last name deleted for privacy due to age of posting] Pneumatic Gripper Manufacturer - Monroe, CT, USA Ed. note: Some additional info on aluminum usage for D.I. water is in letters 8205, 10156 and 23991.

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