DISPOSABLE POSITIVE DISPLACEMENT DOSING SYSTEM

摘要

A positive displacement dosing system is disclosed. The system includes a plurality of disposable positive displacement pumps. The disposable positive displacement pumps each include a pump body having head portion and a base portion, with the head portion having one or more fluid passage openings. Each disposable positive displacement pump also includes a rolling diaphragm internal to the pump body and defining a fluid chamber within the pump body. The disposable positive displacement pump also includes a piston drive unit configured to reciprocally drive the rolling diaphragm to move fluid in or out of the fluid chamber. The positive displacement dosing system includes tubing connecting the fluid reservoir to the disposable positive displacement pump. A method of dispensing a fluid is disclosed as well.