Design Engineering

Valveless Waste Transfer Pump


FMI’s Waste Transfer Pump integrates a brushless motor, with a built-in driver, and the advantages of CeramPump valveless fluid transfer technology.

fluid metering valveless waster pumpFluid Metering, Inc. (FMI) introduces its valveless Waste Transfer Pump. The pump was designed for removal of waste fluid generated by medical diagnostic instrumentation during the process of analyzing a variety of patient fluid samples. The Valveless, Brushless DC Waste Transfer Pump utilizes FMI’s unique CeramPump valveless piston fluid control technology. One moving part, a rotating and reciprocating ceramic piston accomplishes all fluid control functions within the pump, thereby eliminating the need for check valves present in other reciprocating pump designs (diaphragm, bellows, solenoid piston, syringe). The variety of suspended solids and particulates present in medical instrumentation waste often causes check valves to stick, clog, and eventually fail requiring the pumps to be removed from the system and serviced. FMI’s Valveless, Brushless DC motor Waste Transfer Pump integrates the long life performance of a brushless motor, with a built-in driver, together with the advantages of FMI’s CeramPump valveless fluid transfer technology. The pump is easily integrated into any existing system design. All that is needed is a simple 24VDC input supply. Flow rates can be factory calibrated from 20 mL/min to 400 mL/min. The integral compact design with a small 6” x 2” x 2” footprint makes it ideal for medical and analytical instrumentation applications.




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