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Use of cathodic protection (sacrificial anodes) with Cast Iron (EN-GJL-250) in ph5 submerged medium?

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Arshad Ahamed

Arshad Ahamed

Mechanical
Jul 31, 2018
23
Greetings,

I have a customer who is to install cast-iron pump (en-gjl-250) submerged in medium (textile effluent) with pH5. Is installing sacrificial anodes a good measure to reduce corrosion rate and enhance pump life?

Medium temp : 40deg C.
ph : 5


Be curious, and furious in your pursuit for answers
 
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Did anyone do the math on the anodes?
At that pH they will be consumed quickly.
They will need to check often.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
 
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