Product recirculation from discharge through flow control orifice and heat exchanger to seal chamber.
Product recirculation from pump discharge through a Y strainer, a flow control orifice and a heat exchanger to seal chamber.
Product recirculation from seal chamber to heat exchanger and back to seal chamber.
Product recirculation from discharge through a cyclone separator, which directs clean fluid to the seal and solids back to pump suction.
Injection of clean or cool liquid from external source into the seal chamber.
Product recirculation from discharge through a cyclone separator and a heat exchanger to seal chamber.
External reservoir providing a dead-ended blanket for fluid to the quench connection of the gland.