Selection of waste acid concentration pump
Thread Content
For sulfuric acid at around 35%, with a temperature of about 100 degrees, what type of pump is suitable for being corrosion-resistant and heat-resistant? Please recommend one
Pumps made of fluorinated materials can be used, equipped with PFA impellers
It’s a non-metal; Hastelloy isn’t worth it
Fluorine-lined centrifugal pump, Sic hard-sealed mechanical seal.
There’s a fluorine-containing magnetic pump inside; otherwise, it will corrode and damage the pump
Centrifugal pump made of metal 904 material
According to property tables, 35% sulfuric acid boils at around 110°C. Normally, carbon steel lined with PFA or ETFE is sufficient for such conditions, but when making a selection under these circumstances, NPSHa needs to be taken into consideration.
The operating conditions are not yet complete; generally, a fluorine pump with a built-in double-end seal is selected.