Not sure I understand. Is it a sacrificial piece to protect the pump or the impeller? I can't see how it protects an impeller since there is minimum clearance. If it protects the aluminum wall of the pump wouldn't the strength of stainless as a replacement ring risk distorting the pump shape if a rock was sucked up?
I once replaced an aluminum boat prop for a stainless because it would be stronger. I nicked a rock at 2 mph and the prop was fine but the shaft was bent. In the end it cost me much more to fix than a new prop. Might a similar principle apply here with a stainless wear ring ?
I once replaced an aluminum boat prop for a stainless because it would be stronger. I nicked a rock at 2 mph and the prop was fine but the shaft was bent. In the end it cost me much more to fix than a new prop. Might a similar principle apply here with a stainless wear ring ?