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Hello All: I'm operating a thermic oil centrifugal pump at 350 deg C, the pump has a double mechanical seal with API plan 53A (pressurized reservoir with pumping ring. The barrier fluid is same as thermic fluid The pump and the seal runs fine for few months then after we've noticed a sudden...

Hello All: I have a cooling tank which is used to cool higher chain hydrocarbons from 400 Deg C to around 250 Deg C. To avoid material solidification inside the tank there is an immersion heater but the heating is only accomplished up to level of the heater. To avoid material solidification at...