Water ring vacuum pump rotor material
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Reduced-head water ring vacuum pump, with a working fluid of sulfur-containing wastewater; the working fluid contains chloride ions at a concentration of 300 ppm, and the temperature is 30°C. After about three years of operation, one piece of the rotor impeller broke, and several cracks were found elsewhere (at the welds). The rotor material may be 316L (to be confirmed; it could also be 304). Is 316L suitable for normal operating conditions like this? If upgrading the material, what materials can be upgraded?
Three years is sufficient; normal 316L will do. The material of the original component needs to be tested, and there’s no need for an upgrade
Titanium is the best material; its price is not high either. You can consult me for more details, with a three-year warranty……
316L material will do. It has worked well for three years.
It has performed well for three years; it seems to have low corrosivity, so I don’t think there’s any need to replace it with another material.