Valveless OEM Pumps

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Hydraulics & Pneumatics

Valveless OEM Pumps
Valveless OEM Pumps

Miniature, stepper driven Valveless OEM Pumps from Fluid Metering can be used for low and micro-volume fluid control in medical diagnostic and clinical chemistry instrumentation. The pumps integrate FMI's patented CeramPump valveless pumping principle with precision stepper control. The pump utilizes one moving part, a sapphire-hard ceramic piston, to perform all fluid control functions, eliminating valves typically present in low volume metering technologies. The valveless function is accomplished by the synchronous rotation and reciprocation of the ceramic piston within a precisely mated ceramic liner. The reciprocation action of the piston, similar to a standard piston pump, accomplishes the pumping function. The piston also rotates, alternately aligning a flat at the end with the inlet and outlet ports of the pump. When the flat is aligned with the inlet port, fluid can be drawn into the pump. When the flat is aligned with the outlet port, fluid can exit the pump. Only one port is open at any time and at no point are both ports interconnected. This effectively functions as, and replaces, conventional check valves. Utilizing sapphire-hard, dimensionally stable components, as well as eliminating check valves, results in a pump that will maintain 0.5 % precision for millions of cycles without maintenance or recalibration. The CeramPump, having only one moving part in contact with the fluid, eliminates multiple syringes, valves, & actuators typically present in other low and micro-volume metering systems.

Posted on June 28, 2013 - (695 views)
by
Fluid Metering Inc.
5 Aerial Way, Suite 500
11791 Syosset - USA
+1-516-9226050
+1-516-6248261
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