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Solutions for Controlling Blood Flow in Dialysis Equipment
... specified in their systems to control the flow of blood. Valve components controlling blood flow are of particular concern since they ... be positioned to accept and easily replace the disposable tube harnesses used for each individual patient treatment. With contamination ...
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The Pros and Cons of Air-Piloted Pinch Valves vs. Direct Acting Pinch Valves
... of these essentially have the same outcome—they pinch a tube, on and off, to control the flow of media. But they each have their own ... The first factor in choosing between an air-piloted pinch valve or a direct acting pinch valve is the availability of compressed air in ...
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Case Study: Liquid Level Sensing
... control head used to replace common cantilever or torque tube level control heads that either don’t perform consistently, or are ... rises, the float moves a rod that touches the pilot actuator valve which sends signal to a cylinder that opens a valve that release liquid ...
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Laboratory Automation for Pesticide Residue Analysis
... vegetables, etc.) in a blender and puts it in a centrifuge tube with a reagent, then agitates it for one minute. The reagents used depend ... Engineer at Teledyne Tekmar, the choice was clear. "The air valve actuates, then the cylinder moves. As opposed to using a motor to drive a ...
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Automation on a Budget
... cylinders to repeatedly start and stop flow. Control valve s regulate airflow and actuation rate, running the test as fast as ... also uses pneumatic s to automate a difficult aluminum-tube welding process. Relying on pneumatic s for actuation and clamping, ...
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History: 1940s
... born. The original product was nothing more than a brass tube with a piston rod and a leather seal, but it did the job he needed it to ... were also all too large, so Leonard developed a small 3-way valve using the new #10-32 ports. At the time, it did not even occur to him ...
