We have rubber lined pumps in our wastewater system. They handle water with about 25% fine solids. pH is typically ~7, but it seems there may be occasional excursions or variances in the mud bed. The liner life is short (~ 6 months) and the liners are expensive (2-3k, parts only). I suspect...
I have a boiler feedwater system with about a 25# pressure drop (calculated) but a total actual drop of about 120# due to the installed control valve. Is this reasonable? Controlability is important, we can't uncover the tubes, but that much pressure drop just seems ridiculous, and I could...