This type is multistage centrifugal pump and used high quantity flowing of oil for the large machine with higher precise and efficiency. It is proper to make at working parts surface slick by flowing down and washing the chips by cooling fluid.
As the motor is separated from pump part, the high temperature of motor does not transfer directly to the pump, so the oil temperature can keep constantly.
The divider should be installed between inlet and outlet to protect reduction of suction power by mixing dust, and keep 40mm distance between pump casing and tank bottom.
When installed added pipe at inlet, the bottom casing should be submerged over 1 stage to avoid not sucking at first operation.
The special mechanical seal improves pump life.