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Miniature 3/2 isolation valve 'sets new benchmark'

Burkert Fluid Control Systemsvisit website

 

Miniature 3/2 isolation valve 'sets new benchmark'Burkert's says its innovative Type 6650 3/2 isolation valve uses patented flipper technology to set a new benchmark for miniature solenoid valves employed in clinical, life-science, analytical and fluid handling equipment. Measuring just just 4.5mm wide and suitable for use on vacuum, at up to 7bar, and providing medium isolation for aggressive fluids, the direct-acting Type 6650 valve is said to be a significant step towards miniaturisation, while outperforming comparable 10mm and 16mm designs.

The Type 6650 isolation valve is useful for manufacturers with applications requiring fast response times, high reproducibility, zero pumping and excellent flushing characteristics. The valve's optimised design ensures reproducible and precise dosing, effective rinsing capability, and is suitable for use with aggressive chemicals.

Key to the performance of the Type 6650 valve is B├╝rkert's patented Flipper Technology. This employs an elastomer element that moves between two opposite valve seats under the force of permanent magnets fixed to the flipper element; as one port opens, the other closes. This operation requires only a temporary pulse, so is characterised by its short response time. It also provides benefits in terms of high reliability and very low wear.

Options

With two nominal sizes available (0.4mm and 0.8mm) and both 2/2 and 3/2 functionality, the Type 6650 is suitable for applications where high fluid performance is required in a small space – in dosing, for example, where the Type 6650 opens up new possibilities, especially when used with 384-well Microtiter plates.

Both the new 3/2 valve and the 2/2 variant, which was launched in 2008, have bodies manufactured from high-performance PEEK and seals made of FFKM.

The Type 6650 is the latest introduction to Burkert's MicroFluidic range of products for analytical, medical and biotechnical applications. The range includes miniature solenoid valves and micro-pumps for applications with neutral, aggressive and highly purified media. These products are extremely proficient in the handling of fluids where dead legs, internal volume, chemical resistance and precision are paramount.

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25 February 2010

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