Stepper motor driven valve provides inert Teflon fluid path
Boonton, NJ (September 8, 2016) – The Electric Rotary Valve from BioChem Fluidics is ideal for designers of analytical and laboratory devices to complete sample collection, loop injection or flow path selection applications. The valve is specifically designed to work with aggressive or reactive fluids.
BioChem Fluidics Electric Rotary Valve specifically designed to work with aggressive or reactive fluids
Fluid entering the valve follows an inert flow path achieved by aligning orifices in a CTFE rotor and a PTFE body, precision fit together to ensure a tightly sealed interface. Motion is provided by an optional stepper motor. An optoelectronic position sensor inside the valve provides the rotor’s position to the valve’s control circuit.
The ERV has a chemically resistant, Teflon fluid path that is free of any metal parts. The resistance of the Teflon body to particulate and chemical adhesion reduces the frequency of valve seizure after instrument downtime.
The valve is available in a number of flow configurations that match most common applications. Standard ¼”-28 UNF fluid port connections with stainless steel threaded inserts, and NEMA 17 stepper motors allow easy integration into sophisticated systems. Since BioChem Fluidics machines the fluid path and valve body internally, the ERV can be customized upon request.
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Maestro pump capable of 10 million cycles with up to 99.5 percent accuracy
Boonton, NJ (June 15, 2016) – The new Maestro piston pump from Bio-Chem Fluidics delivers the longest life and best accuracy of any other pump in its category. The pump is capable of 10 million cycles with clean fluids, and 5 million cycles with aggressive or precipitating fluids.
Some piston pumps, used in fluidics systems when the dispense accuracy of a diaphragm pump or peristaltic pump is insufficient, can be prone to failure. Typically found in IVD and similar low pressure applications, piston pumps generally depend upon a flushed seal chamber to maintain the piston in a wetted environment. Pump failure happens when the seal fails, which historically occurs between 3 to 5 million cycles when working with clean fluids, even less with aggressive fluids.
The cost-effective Maestro piston pump uses an improved design with high tolerance components to deliver an extended lifetime. Rigorous testing has validated the pump’s performance at twice that of similar pumps.
Maestro is capable of moving between 500nL to 5000µL of liquids with up to 99.5 percent accuracy. The pump integrates easily with existing instruments, featuring drop-in replacement with no custom software required to drive Maestro stepper motors.
Maestro also offers a variety of features, such as PEEK piston construction, and can be customized to meet specific application needs.
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