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The tutorial for hooking up a peristaltic pump to Process Controller can be found here.
Centrifugal Pumps
Centrifugal pumps are negative displacement pumps meaning that their flow rate depends on the pressure on the discharge end. Flow enters the white/gray piece (in the picture below) and is pushed upward through the black port (perpendicular to the entrance port) by a motor driven propeller. Each of these pumps are designed to operate efficiently at a given discharge pressure which can be found in the manufacturer's manual. The flow rate of these pumps cannot be set by Process Controller - it can only turn the pump ON or OFF. They can only be used with a stamp box as the voltage required to operate them is higher than can be supplied by the stamp box. 