The circulator unit has a pressure regulator with a very small orifice which tends to plug if any foreign particle finds its way into the system. By "improper operation" I mean Operators not ensuring the circulator is running prior to starting the serviced pump, not ensuring cooling water is...
I have 2 pumps in Crude Vac Bottoms service (750 F) which currently have dual metal bellows seal arrangement with Plan 54 barrier fluid circulation. We have numerous failures due to either blockage in the seal system causing lack of barrier fluid circulation, or improper operation of the...
